
Click here for Trend-Micro
24 Oct 2003
Cyber-Security Tips From the National Cyber-Security Alliance
1. Use protection software "anti-virus software" and keep it up to
date.
Make sure you have anti-virus software on your computer! Anti-virus
software is designed to protect you and your computer against known
viruses so you don't have to worry. But with new viruses emerging daily,
anti-virus programs need regular updates, like annual flu shots, to
recognize these new viruses. Be sure to update your anti-virus software
regularly! The more often you keep it updated, say once a week, the
better. Check with the web site of your anti-virus software company to
see some sample descriptions of viruses and to get regular updates for
your software. Stop viruses in their tracks!
2. Don't open email from unknown sources.
A simple rule of thumb is that if you don't know the person who is
sending you an email, be very careful about opening the email and any
file attached to it. Should you receive a suspicious email, the best
thing to do is to delete the entire message, including any attachment.
Even if you do know the person sending you the email, you should
exercise caution if the message is strange and unexpected, particularly
if it contains unusual hyperlinks. Your friend may have accidentally
sent you a virus. Such was the case with the "I Love You" virus that
spread to millions of people in 2001. When in doubt, delete!
3. Use hard-to-guess passwords.
Passwords will only keep outsiders out if they are difficult to guess!
Don't share your password, and don't use the same password in more than
one place. If someone should happen to guess one of your passwords, you
don't want them to be able to use it in other places. The golden rules
of passwords are: (1) A password should have a minimum of 8 characters,
be as meaningless as possible, and use uppercase letters, lowercase
letters and numbers, e.g., xk28LP97. (2) Change passwords regularly, at
least every 90 days. (3) Do not give out your password to anyone!
4. Protect your computer from Internet intruders -- use "firewalls".
Equip your computer with a firewall! Firewalls create a protective wall
between your computer and the outside world. They come in two forms,
software firewalls that run on your personal computer and hardware
firewalls that protect a number of computers at the same time. They work
by filtering out unauthorized or potentially dangerous types of data
from the Internet, while still allowing other (good) data to reach your
computer. Firewalls also ensure that unauthorized persons can't gain
access to your computer while you're connected to the Internet. You can
find firewall hardware and software at most computer stores nationwide.
Don't let intruders in!
5. Don't share access to your computers with strangers. Learn about
file sharing risks.
Your computer operating system may allow other computers on a network,
including the Internet, to access the hard-drive of your computer in
order to "share files". This ability to share files can be used to
infect your computer with a virus or look at the files on your computer
if you don't pay close attention. So, unless you really need this
ability, make sure you turn off file-sharing. Check your operating
system and your other program help files to learn how to disable file
sharing. Don't share access to your computer with strangers!
6. Disconnect from the Internet when not in use.
Remember that the Digital Highway is a two-way road. You send and
receive information on it. Disconnecting your computer from the Internet
when you're not online lessens the chance that someone will be able to
access your computer. And if you haven't kept your anti-virus software
up-to-date, or don't have a firewall in place, someone could infect your
computer or use it to harm someone else on the Internet. Be safe and
disconnect!
7. Back up your computer data.
Experienced computer users know that there are two types of people:
those who have already lost data and those who are going to experience
the pain of losing data in the future. Back up small amounts of data on
floppy disks and larger amounts on CDs. If you have access to a network,
save copies of your data on another computer in the network. Most people
make weekly backups of all their important data. And make sure you have
your original software start-up disks handy and available in the event
your computer system files get damaged. Be prepared!
8. Regularly download security protection update "patches".
Most major software companies today have to release updates and patches
to their software every so often. Sometimes bugs are discovered in a
program that may allow a malicious person to attack your computer. When
these bugs are discovered, the software companies, or vendors, create
patches that they post on their web sites. You need to be sure you
download and install the patches! Check your software vendors' web sites
on a regular basis for new security patches or use the new automated
patching features that some companies offer. If you don't have the time
to do the work yourself, download and install a utility program to do it
for you. There are available software programs that can perform this
task for you. Stay informed!
9. Check your security on a regular basis.
When you change your clocks for daylight-savings time, reevaluate your
computer security. The programs and operating system on your computer
have many valuable features that make your life easier, but can also
leave you vulnerable to hackers and viruses. You should evaluate your
computer security at least twice a year -- do it when you change the
clocks for daylight-savings! Look at the settings on applications that
you have on your computer. Your browser software, for example, typically
has a security setting in its preferences area. Check what settings you
have and make sure you have the security level appropriate for you. Set
a high bar for yourself!
10. Make sure your family members and/or your employees know what to
do if your computer becomes infected.
It's important that everyone who uses a computer be aware of proper
security practices. People should know how to update virus protection
software, how to download security patches from software vendors and how
to create a proper password. Make sure they know these tips too!
Source:
http://www.staysafeonline.info/sectips.adp
INSTANT
- 13:30CDT - 18
Sep 2001
Servers Under Attack From CodeRed And/Or Variant; New Worm Noted
Chicago, IL (EmergencyNet News) -- ERRI COMPSEC analysts say that they are receiving reports of numerous reports of IIS attacks being generated by machines over a broad range of IP addresses. In fact, one of the ERRI/EmergencyNet News servers has been under almost constant attack since late last night. It is believed that at least some of these attacks are the result of a new worm, being called w32.nimda.amm.
Among the the tactics ERRI technicians have seen, the attacker assumes the victim machine is compromised by Code Red II (looking for ROOT.EXE in the /scripts, /msadc, and /winnt directory, as well as an attempt to use the /c and /d virtual roots to get to CMD.EXE). Further, it attempts to exploit numerous other known IIS vulnerabilities. Other attempted exploits appear to be of an older CodeRed II .ida.xxxx variety. These exploits are directed only at Microsoft-based machines at this time.
Additionally, the SirCam virus continues to be received, with about
20 copies received so far today. ERRI analysts and other computer security
organizations are monitoring these developments closely and will provide
additional updates as circumstances may warrant... (See NIPC warning
below)
ERRI Website Under Cracker Attack??
Chicago, IL (EmergencyNet News) -- The Emergency Response & Research Institute website (this site) is apparently under some sort of "denial of service" attack at the time of this report. The symptoms of the attack included multiple simultaneous requests for the same file from multiple IP addresses, believed to be an effort to overload our server. The file being repeatedly requested, thousands of times, relates to a infamous terrorist who is suspected to be involved in the recent attack on the U.S.S. Cole.
The appropriate law enforcement agencies have been notified
of this event and ERRI computer security analysts are monitoring the
situation closely. We apologize for any delays that you may experience as
you attempt to load our webpages. In the event that we experience an
complete outage on our main web server, please rest assured that we will
return to service as rapidly as possible using a back-up server....
Advisory 03-002
13 Feb 2003
"Encourages Heightened Cyber Security as Iraq - US Tensions Increase"
WASHINGTON: The National Infrastructure Protection Center (NIPC) is issuing this advisory to heighten the awareness of an increase in global hacking activities as a result of the increasing tensions between the United States and Iraq.
Recent experience has shown that during a time of increased international tension, illegal cyber activity: spamming, web defacements, denial of service attacks, etc., often escalates. This activity can originate within another country, which is party to the tension. It can be state sponsored or encouraged, or come from domestic organizations or individuals independently. Additionally, sympathetic individuals and organizations worldwide tend to conduct hacking activity, which they view as somehow contributing to the cause. As tensions rise, it is prudent to be aware of, and prepare for this type of illegal activity.
All users should be aware that malicious code (e.g., worms and viruses) can be introduced to spread rapidly by using patriotic or otherwise catchy titles, encouraging users to click on a document, picture, word, etc., which automatically spreads the damaging code.
The NIPC encourages recipients of this advisory to report computer
intrusions and /or other crime to federal, state, or local law enforcement,
their local FBI office
http://www.nipc.gov/incident/cirr.htm.
and other appropriate authorities. Recipients may report incidents online to
http://www.nipc.gov/incident/cirr.htm. The NIPC Watch and
Warning Unit can be reached at (202) 323-3204/3205/3206 or by e-mail at:
nipc.watch@fbi.gov.
Source:
http://www.nipc.gov/warnings/advisories/2003/03-002.htm
06 Aug 2002
"Limited" Cyber-Attack Being Reported
CHICAGO, IL -- August 6, 2002 -- The government was monitoring a
series of electronic attacks launched early today against U.S. Internet
providers, hours after European authorities passed warnings to the FBI
predicting the attacks.
The impact from the attacks appeared limited, and there were no reports
of outages or even delayed e-mails. A flood of data, spiking nearly 700
percent more than usual traffic, was aimed at Internet providers and Web
sites on the East coast starting about 2 a.m. EDT, then shifted toward
providers and sites on the West coast, said a U.S. official, speaking on
condition of anonymity.
But unlike some recent so-called "denial of service" attacks, which
employed hundreds or thousands of computers to overwhelm Web sites, this
latest attack appeared to be coming from a relatively small number of
machines, the official said. That has allowed Internet providers to
protect their networks more easily by filtering data from the attacking
computers.
The FBI issued a dramatic warning hours before the attacks started,
based on information from Italian authorities, a U.S. official said. The
alert cited "credible but non-specific information that wide-scale
hacker attacks" were planned against U.S. Web sites and Internet
providers, "possibly emanating from Western Europe..."
Source: Chicago Tribune, read the whole story on the internet at:
http://www.chicagotribune.com/technology/sns-internetattack.story
Click here to review the official NIPC warning:
http://www.nipc.gov/warnings/alerts/2002/02-003.htm
15 June 2002
New Denial of Service Attacks Being Verified
NEW YORK CITY --
Foxnews.com
and a
number of other leading Web sites this week came under an apparent denial
of service cyber-attack, which disrupted service to hundreds of thousands
of Internet users. The attacks at Foxnews.com began on Thursday and caused
intermittent outages and slowdowns on the site before normal service was
restored Friday evening. The source of the attack on
Foxnews.com
and the others sites was not
clear, and officials are still actively investigating the incidents.
Cyber-security experts at the sites involved were examining the hypothesis
that the disruptions are a so-called "syn-flood" attack. ERRI computer
security analysts warned that if historic patterns are followed,
additional attacks on other sites may occur in the near term.
24 March 2002
WRIGHT-PATTERSON A.F.B.: Air Force sources are saying that the
base computer systems have suffered what appears to be a major "hack
attack," reportedly coming from "an unidentified foreign country." Air Force
spokesman Lt. Col. Ed Worley called it "a concerted and directed attack, and
one of the most orchestrated we've seen in about the last six months." The
bulk of the attack occurred early on Friday morning, and the entire matters
remains under investigation by authorities. Following the reported attempted
hack on Wright-Patterson AFB, ERRI counter-terrorism analysts have been
paying extra attention to virus/ hacking issues...as a potential precursor
to other adversarial activity.
Advisory 02-001
Internet Content
Advisory: Considering The Unintended Audience
January 17, 2002
As worldwide usage of the Internet has increased, so too have the vast
resources available to anyone online. Among the information available to
Internet users are details on critical infrastructures, emergency response
plans and other data of potential use to persons with criminal intent.
Search engines and similar technologies have made arcane and seemingly
isolated information quickly and easily retrievable to anyone with access to
the Internet. The National Infrastructure Protection Center (NIPC) has
received reporting that infrastructure related information, available on the
Internet, is being accessed from sites around the world. While in and of
itself this information is not significant, it highlights a potential
vulnerability.
The NIPC is issuing this advisory to heighten community awareness of this potential problem and to encourage Internet content providers to review the data they make available online. A related information piece on "Terrorists and the Internet: Publicly Available Data should be Carefully Reviewed" was published in the NIPC's HIGHLIGHTS 11-01 on December 07, 2001 and is available at the NIPC web site www.nipc.gov. Of course, the NIPC remains mindful that, when viewing information access from a security point of view, the advantages of posting certain information could outweigh the risks of doing so. For safety and security information that requires wide-dissemination and for which the Internet remains the preferred means, security officers are encouraged to include in corporate security plans mechanisms for risk management and crisis response that pertain to malicious use of open source information
The NIPC
encourages recipients of this advisory to report computer intrusions to
their local FBI office
http://www.fbi.gov/contact/fo/fo.htm
or the
NIPC, and to other appropriate authorities. Recipients may report incidents
online at
http://www.nipc.gov/incident/cirr.htm,
and
can reach the NIPC Watch and Warning Unit at (202) 323-3205, 1-888-585-9078
or
nipc.watch@fbi.gov
Summary and Chronology of
EmergencyNet News Reports and References:
10 Jan 2001 to 17 Sep 2001
05 Nov 99 - WASHINGTON, DC:
Counter-Terrorist Czar Warns of Cyberspace Attack
A White House security adviser said on Thursday at a cyberthreat summit that reliance on the Internet has made the nation vulnerable to attacks by terrorists who strike through computers rather than with bombs or bullets. Richard Clarke, the National Security Council adviser who heads counter-terrorism efforts, said: "We could wake one morning and find a city, or a sector of the country, or the whole country have an electric power problem, a transportation problem or a telecommunication problem because there was a surprise attack using information warfare."
20 Oct 99 -- WORLDWIDE:
Swarm Attacks on Computers Reported
Computer security analysts, attending the National Information Systems Security Conference are saying that they have discovered a disturbing new pattern of "denial of service attacks" that could have a devastating effect on computer networks. In a bylined article by Robert Lemos, appearing on the ZDNN website, a new method of 'netwar' or 'hacktivism' is being described by experts as a "distributed coordinated attack."
Essentially, the technique uses a number
(potentially hundreds) of different workstations or servers to coordinate
their assault on a particular corporate or government server, in an
attempt to overwhelm it with requests for information, webpages, or by
sending it multiple e-mails...thus causing it to be taken off-line. The
target computers can be those of a government agency or a any site that
contains information with which the attacking group disagrees. ERRI
security analysts are calling the new tactic a "swarm
attack."
1>Click here for the above story from ZDNN
2>Click here for excellent Rand Corporation explanation of "netwar."
|
EmergencyNet News Quizlet Q: Is the current threat of Cyberwarfare/Cyberterrorism Being Overblown by the Media? (of 235 respondents - From 27 July to 10 Aug 99) 44% - No, I don't think so... 38% - Yes, I think it is... |
13 June 99 -- DAHLGREN, VA: Federal
Computer Week is reporting a rash of "cracker attacks" on
several U.S. Navy website servers. According to a by-line article by Bob
Brewer and Diane Frank, on 22 June, the Naval Surface Warfare Center in
Virginia and the Naval Air Warfare Center Training Systems Division in
Florida have both been the victim of website "graffiti attacks."
Allegedly the hacker, who signed himself F0rpaxe,
taunted the FBI with an obscene message left on the Navy webpage. The FBI
is said to be investigating the incidents.
WARNING! Use of this system constitutes consent to security monitoring and testing. All activity here is logged with your host name and IP address.
|
|
Source: http://www.sarc.com/avcenter/venc/data/w32.hllw.lovgate.c@mm.html
Removal using the W32.HLLW.Lovgate
Removal Tool
This is the easiest way to remove this threat. Symantec Security Response
has created a
W32.HLLW.Lovgate Removal Tool. Click
here to obtain the tool.
UPDATE - 11:00CST - 25 Jan 2003
SQL Slammer
WASHINGTON: Traffic on the many parts of the Internet slowed
dramatically for hours early Saturday, the apparent effects of a
fast-spreading, virus-like infection being called, alternatively,
"sapphire," "slammer" or "SQ hell." The interruptions began to occur
at about 00:30EST. The worm, which seems to overwhelm SQL servers,
reportedly clogged the world's digital pipelines and interfered with Web
browsing and delivery of e-mail. The country of S. Korea was apparently
especially hard-hit by the worm. And, some major servers in Israel
continue to be unreachable at the time of this report.
Various sites, who monitor the health of the Internet, reported significant global slowdowns. Experts said the electronic attack bore remarkable similarities to the "Code Red" virus during the summer of 2001 which also ground traffic to a halt on much of the Internet. Members of the FBI's NIPC and experts at the federally funded CERT Coordination Center were monitoring the attack and are expected to conduct an investigation into the source of the attack.
Additional information and a patch for the vulnerability is available at:
Microsoft Security Bulletin MS02-039: Buffer Overruns in SQL Server 2000
Resolution Service Could Enable Code Execution (Q323875)
More KLEZ.H Spoofing...
Devious distribution of the W32.Klez.H@mm virus continue. We found this
one particularly "lame" and yet interesting, as it appears to be sent
internally (from sysop to
sysop@emergency.com) until one analyzes the headers. Then it becomes
apparent that this is another case of spoofing of the sending address. The
file "set-up.exe" was included, along with "search_2.htm." Please be aware
of this continued activity. See log:
Received: from [209.20.130.75] by emergency.com id
4e510.wrk; Fri, 7 Jun 2002 09:50:36 CST
Received: from Kcz ([208.187.159.37])
by smtp001.nwlink.com (8.12.2/8.12.2) with SMTP id g57Ed5OK000779
for <sysop@emergency.com>; Fri, 7 Jun 2002 07:39:09 -0700
Date: Fri, 7 Jun 2002 07:39:05 -0700
Message-Id: <200206071439.g57Ed5OK000779@smtp001.nwlink.com>
From: sysop <sysop@emergency.com>
To: sysop@emergency.com
Subject: A very nice game
X-Mail-From: camgroup@nwlink.com
MIME-Version: 1.0
Content-Type: multipart/mixed;
boundary="zzzz7e9e09af2cc74ebcemergency.cozzzz"
Fraudulent E-Mail Addresses Used to Spread W32.Klez.H@mm virus
CHICAGO, IL: ERRI Managing editor Steve Macko today warned that fraudulent e-mail addresses are being used to spread the Klez virus on the internet. Macko (firenet@emergency.com) said that an investigation of an e-mail that appears to come from his professional address actually comes from another unknown party and from/through several servers at AOL.com (see actual log below). Macko said that analysis indicates that the Klez.H virus was contained in a file attachment entitled: "Pwmaq.exe," and contained what appear to be a webpage, "Index_1_htm" and that the e-mail is titled "Owners. All rights reserved." Macko said that any number of official e-mail addresses are also being spoofed in this manner urged caution about opening such e-mails, and said that it would be useful for internet providers to block such traffic. Macko also recommended that computer users keep their anti-virus scanners updated.
Received: from [205.188.156.51] by
emergency.com id 69510.wrk; Thu, 6 Jun 2002 13:10:34 CST
Received: from logs-mtc-tc.proxy.aol.com (logs-mtc-tc.proxy.aol.com
[64.12.105.135]) by rly-ip06.mx.aol.com (v83.35) with ESMTP id
RELAYIN2-0606135641; Thu, 06 Jun 2002 13:56:41 -0400
Received: from Dgptjccq (ACA92542.ipt.aol.com [172.169.37.66])
by logs-mtc-tc.proxy.aol.com (8.10.0/8.10.0) with SMTP id g56Hrns28607
for <webmaster@emergency.com>; Thu, 6 Jun 2002 13:53:49 -0400 (EDT)
Date: Thu, 6 Jun 2002 13:53:49 -0400 (EDT)
Message-Id: <200206061753.g56Hrns28607@logs-mtc-tc.proxy.aol.com>
From: firenet <firenet@emergency.com>
To: webmaster@emergency.com
Subject: Owners. All rights reserved.
X-Apparently-From: Cav669@aol.com
MIME-Version: 1.0
Content-Type: multipart/mixed;
boundary="zzzz7e9e051b2cc66970emergency.cozzzz"
27 Apr 2002
COMPUTER VIRUS ADVISORY: The Klez computer virus, in various
varieties, continues to propagate. If the infected e-mail received by
EmergencyNet News is any indication, the W32/KLEZ.H,
W32.Klez.gen@mm virus, and W32.Klez.E@mm virus seem most active in
proliferation. In the copies we received, the viruses appear to be sent from
Europe and Asia. They are deviously accompanied by what appear to be tools
to eradicate or fix viruses, with names like: "Worm Klez.E immunity," "A
Good Tool," and "A WinXP patch." Another example attempts to appear to
contain pornographic images, with the name, "Free Porn." All are bogus
and contain virus payloads. The TrendLabs Global Antivirus and Research
Center, in their April 26, 2002 report, says that various variations of the
Klez virus hold the top two or three spaces in their list of most frequent
infections. ERRI/EmergencyNet News readers are cautioned to ensure that
their anti-virus scanners are maintained, on-line, and up to date.
19:30CST - 12 Mar 2002
Virus Alert
Within the past hour, EmergencyNews has received two copies of what appears to be a "Microsoft Security Update." It is not, and in fact, is a rapidly spreading virus named W32.Gibe@mm. Due to an increased rate of transmission Symantec Security Response has upgraded the threat rating of W32.Gibe@mm from Category 2 to Category 3 as of March 11, 2002.
W32.Gibe@mm is a worm that uses Microsoft Outlook and its own SMTP
engine to spread. It also installs a Backdoor Trojan which allows remote
access to the infected system. This worm arrives in an
email message--which is disguised as a Microsoft Internet Security
Update--as the attachment Q216309.exe. Do not open this attachment...delete
it. Also, it is strongly recommended that you keep your anti-virus scanner
up-to-date.
21 Dec 2001
Computer Security/Infrastructure Protection
XP System Needs Patch; Download Urged
WASHINGTON: Microsoft is urging customers to quickly install a patch to
repair serious flaws in the newest version of Windows, which was marketed as
the most secure ever. The problems allow hackers to steal or destroy a
user's data files across the Internet or implant rogue computer software. A
Microsoft official acknowledged that the risk to consumers was unprecedented
because the glitches allow hackers to seize control of all Windows XP
operating system software without requiring a computer user to do anything
except connect to the Internet. Patches are available at
www.microsoft.com
Virus Name: CODERED.C
Risk Type: Medium Risk Virus Alert
CODERED.C is a new worm that uses the same exploit as the previous two CODERED worms. This worm makes use of a vulnerability in Internet Information Servers (IIS). It drops a backdoor Trojan on an infected Web server, giving an attacker full access to this Web server, thereby compromising network security.
This worm only affects computers running IIS that have not been patched with the Microsoft patch, and poses no risk to Windows 95, 98, and ME users. Windows NT and 2000 users who do not have IIS installed are also at no risk. However, if you are not sure if IIS is installed on your machine, please run the free tool provided by Trend Micro that detects whether the Microsoft patch has been installed. This tool is now available at: http://www.antivirus.com/vinfo/security/detect_codered.exe (Note...this is an executable file)
18:00CDT - 05 August 2001
Code Red II Now Spreading
The Emergency Response & Research Institute (ERRI) computer security team has received information about the proliferation of a second version of the Code Red worm. Reportedly, this second worm is not simply a variation of the original Code Red, but has a more potent payload and other "improved" capabilities. It still affects only the Microsoft Corp.'s Windows NT or 2000 operating systems and its IIS Web server software...and should not affect individual user computers. Watch this space for additional information as it becomes available...
*****
12:30CDT - 01 August 2001
Code Red Activity Detected; Increasing
"Based on preliminary analysis, we expect a level of worm activity comparable to the July 19 Code Red infection, which resulted in infection of over 250,000 systems,'' according to a joint statement from the FBI, White House and other agencies. "It should achieve that level of activity by this afternoon." Preliminary estimates from both government and private computer security sources say that as many as 80,000 servers have been newly infected as of the time of this report. Home computers running Windows 95, 98 and ME are not vulnerable to the worm. EmergencyNet News is watching developments of this situation very closely and will provide additional updates as more information becomes available.
Reference and most current NIPC assessment:
http://www.nipc.gov/pressroom/pressrel/cred2.htm
Additional information and repair references concerning the "Code Red"
worm can be accessed on the ERRI Computer/Technical
Operations Page...click here.
For Immediate Release
August 1, 2001
Contacts: Tinabeth Burton, 703-284-5305, tburton@itaa.org
- PCIS & ITAA
Deborah Weierman, 202-324-3691, dwierman@fbi.gov - NIPC
Keith Nahigian, 703-622-4494, keithnahigian@yahoo.com - CIAO
CODE RED UPDATE - THE WORM HAS GONE ACTIVE
Washington, DC - Government and industry officials continue to monitor
activity of the Code Red Worm estimated to have started its journey through
the Internet last night at 8pm EDT. Those who have not installed the free
Microsoft patches to their systems are still urged to do so quickly.
Applying the patch will still protect users from infection.
Data analysis this morning confirms that previous predictions were correct
that the Code Red Worm has in fact gone active. Early reports of activity
spanning the entire globe, including the United States, indicate that the
worm has gone active and is presently spreading throughout the Internet. As
it was the case in July with its early progression, the worm's potential is
still unknown at this time. Further updates will be given throughout the
day. We are hopeful that the many precautions taken by the public, the
government and private industry will have some effect on its ability to
propagate.
We appreciate the participation of all who have cooperated so far to address this significant threat to the Internet. We especially want to thank the media for their quick response and vigilant coverage. Microsoft, thus far, reports that over a million people have avoided the Code Red Worm by downloading and applying the free patch available from Microsoft's website. In the meantime, both government and industry Watch Centers are on full alert to follow progress of the worm throughout the day, and we will report any significant developments.
Source: http://www.nipc.gov/pressroom/pressrel/cdred080101.htm
23:00CDT - 31 July 2001
Code Red Update
Chicago, IL (EmergencyNet News) -- There appears to be "no discernable difference" in current internet traffic after the most recent anticipated activation of the "Code Red" worm, according to several computer security sources. ERRI security analysts said that internet traffic appears to be traveling at a "normal" rate and all of the popular websites that we surveyed appeared to be operating in an appropriate manner. Some sporadic reports of new intrusions/infections are coming in from Switzerland, with approximately ten servers affected.
Additional assessments will be necessary in the next few days to ascertain
what, if any, damage has actually been caused by
"Code Red" and/or what effect new infections
will have on future network operations. EmergencyNet News continues to
monitor events concerning the
"Code Red"
worm and will provide updates as the circumstances warrant...
INSTANT
- 00:00CDT - 31
July 2001
Given Historic Perspective, Expect Slow-Down on Web Tuesday
ERRI computer security analysts are now reporting that the internet, in general, may suffer "slow-downs" in overall performance tomorrow as the result of the "Code Red" worm. The danger could continue until system administrators properly patch their IIS Web server software and Window's NT or 2000 operating systems.
This degradation would be worsened as the result of additional modifications to the "Code Red" virus, although all of the possible ramifications are currently not known. A study of internet latency, during the period that the "Code Red" worm was last active, would indicate a degraded state of web and e-mail performance. ERRI analysts are monitoring events surrounding the 31 July activation and will provide additional updates as circumstances warrant...
NIPC ALERT 01-016:
"Code Red Worm"
7/30/2001
http://www.nipc.gov/warnings/alerts/2001/01-016.htm
For Immediate Release: 3:00 PM (EDT) July 29, 2001
A Very Real and Present Threat to the Internet: July 31 Deadline For Action
Summary:
The Code Red Worm and mutations of the worm pose a continued and serious
threat to Internet users. Immediate action is required to combat this
threat. Users who have deployed software that is vulnerable to the worm
(Microsoft IIS Versions 4.0 and 5.0) must install, if they have not done so
already, a vital security patch.
How Big Is The Problem?
On July 19, the Code Red worm infected more than 250,000 systems in just 9
hours. The worm scans the Internet, identifies vulnerable systems, and
infects these systems by installing itself. Each newly installed worm joins
all the others causing the rate of scanning to grow rapidly. This
uncontrolled growth in scanning directly decreases the speed of the Internet
and can cause sporadic but widespread outages among all types of systems.
Code Red is likely to start spreading again on July 31st, 2001 8:00 PM EDT
and has mutated so that it may be even more dangerous. This spread has the
potential to disrupt business and personal use of the Internet for
applications such as electronic commerce, email and entertainment.
Who Must Act?
Every organization or person who has Windows NT or Windows 2000 systems AND
the IIS web server software may be vulnerable. IIS is installed
automatically for many applications. If you are not certain, follow the
instructions attached to determine whether you are running IIS 4.0 or 5.0.
If you are using Windows 95, Windows 98, or Windows Me, there is no action
that you need to take in response to this alert.
What To Do If You Are Vulnerable?
a. To rid your machine of the current worm, reboot your computer.
b. To protect your system from re-infection: Install Microsoft's patch for
theCode Red vulnerability problem:
- Windows NT version 4.0:
http://www.microsoft.com/Downloads/Release.asp?ReleaseID=30833
- Windows 2000 Professional, Server and Advanced Server:
http://www.microsoft.com/Downloads/Release.asp?ReleaseID=30800
Step-by-step instructions for these actions are posted at: www.digitalisland.net/codered
Microsoft's description of the patch and its installation, and the
vulnerability it addresses is posted at:
http://www.microsoft.com/technet/treeview/default.asp?url=/technet/
security/bulletin/MS01-033.asp
Because of the importance of this threat, this alert is being made
jointly by:
Microsoft Corporation
National Infrastructure Protection Center (NIPC)
Federal Computer Incident Response Center (FedCIRC)
Information Technology Association of America (ITAA)
CERT Coordination Center (CERT/CC)
SANS Institute Internet Security Systems (ISS)
Internet Security Alliance (ISA)
Recipients of this alert are encouraged to report computer intrusions to
their local FBI office (http://www.fbi.gov/contact/fo/fo.htm) or the NIPC,
and to other appropriate authorities. Incidents may be reported online at
http://www.nipc.gov/incident/cirr.htm. The NIPC Watch and Warning Unit can
be reached at (202) 323-3204/3205/3206 or
nipc.watch@fbi.gov.
NIPC ADVISORY 01-015
"Ida Code Red Worm "
07/19/2001
Internet backbone providers have notified the NIPC they are witnessing large-scale victimized web servers scanning for Microsoft Internet Information Server (IIS) vulnerabilities. The activity of Ida Code Red worm has the potential to degrade services running on the Internet. Any web server running the Microsoft IIS versions 4.0 or 5.0 that is not patched is susceptible to a "Buffer Overflow". The NIPC is strongly urging consumers running these versions of IIS 4.0/5.0 to check their systems and install the patch.
The NIPC has determined that the time for the DOS execution of the Ida Code Red Worm is at 0:00 hours, Greenwich Mean Time (GMT ) on July 20, 2001. This is 8:00 pm Eastern Daylight Time (EDT).
Recommendation:
The Microsoft bulletin describing this vulnerability and its patch to fix the problem may be found at: http://www.microsoft.com/technet/security/bulletin/MS01-033.asp Microsoft strongly recommends that all web server administrators mitigate this vulnerability immediately by applying the patch.
Additional information and recommendations:
30 May 2001
Jennifer Lopez Bug...
Do not open any file with the following subject line. It is recommended that you delete it immediately. It is a "Loveletter" variant with a new subject-line and modified payload.
"Subject: Where are you?
Body: This is my pic in
the beach!
Attachment: JENNIFERLOPEZ_NAKED.JPG.vbs"
This can be a quite damaging virus and it is reported to be "in the wild" and spreading. It will reportedly overwrite your graphics and sound files and damage your Windows operating system. Caution is urged.
May 29 2001
Index of Computer Hoaxes
"Please ignore any messages received regarding the supposed "viruses" or "promotional gimmicks" listed below. They all contain bogus information, and are intended only to frighten or confuse users. The list below is a reproduction of the messages. Please refer to the list (linked below) whenever you receive what appears to be a bogus message regarding a new virus, promotion, or the like."
WORLDWIDE:
22:00CST - 06 Mar 2001
New Destructive Computer Virus Reported
It was being reported on Wednesday that a new destructive computer virus that deletes almost all of a computer's vital system files has struck at least 30 organizations. The destructive program is being called the "naked wife" virus. It also sends itself to everyone in the computer's address book. The virus' capacity to spread so quickly by using address books is similar to earlier viruses.
The virus is being called the "naked wife" virus because it appears with the subject line: "FW: Naked Wife". Just like an earlier virus that used the name of tennis star Anna Kournikova, the inviting subject line encourages recipients to open the e-mail. But those that click on to an attached file called "Naked Wife.exe" will only encounter a short cartoon followed by a vulgar message, signed by "BGK (Bill Gates Killer)."
Like most viruses, the recipient's computer is only infected
if the receiver opens the attachment. Computer security experts say that the
virus has already hit at least 30 organizations and more than one federal agency. According to
Steve Trilling, director of research at the Symantec Antivirus Research Center,
about 20 of its clients in Canada, the US and Europe had been hit. Trilling
said: "It essentially destroys your Windows operating system..."
01 Mar 2001
AUSTRALIA:
TELECOMMUNICATIONS GIANT DENIES VIRUS CLAIMS
By Jeremy Zakis, ERRI Analyst
SYDNEY, AUSTRALIA - Australia's biggest telecommunications company Telstra went on the defense Thursday (01 Mar2001) after claims that more than 70,000 customers had been left stranded following a debilitating computer virus. Telstra claims that two outages experienced by customers were due to software faults and not a virus.
The trouble began when e-mail accounts beginning with I,L and M disappeared from three servers in their network last Friday. An Australian newspaper then reported that the company had been struck by a virus and that affected customers would be able to claim up to $40-a-day if there were delays fixing the fault. This allegation is strongly denied by Telstra.
A prepared statement by Telstra said: "Contrary to claims made that people have been impacted for a week, Telstra's email system was subject to two outages that lasted for a period of four hours each, one on Friday 23 February and on Monday 26 February. A software fault and not a virus caused the outages."
"The claim in the article that compensation is
automatically payable in these circumstances is incorrect," the
spokesperson added. Services at the telecommunication giant were reportedly
back to normal on Thursday.
18:00CST - 12 Feb 2001
Beware the Anna Kournikova.jpg1.vbs Virus
(EmergencyNet
News) -- Reports continue to come
into the EmergencyNet News Watchdesk concerning the rapid spread of an old
virus that has been repackaged and is titled "Here you have, ;o)"
or it refers to Anna Kournikova, a well-known tennis player. It is also
known as "Onthefly" and "SST,"and appears to be very
similar to the "Love Letter-Visual Basic Script (VBS) worm,"
that spread rapidly last year.
The worm propagates itself by execution via e-mail and sending itself to all of the addresses found on a user's Microsoft Outlook (TM) address book. In it's current form the Kournikova worm does not appear to do particular damage to the users computer system, but can clog e-mail servers as it continues to spread and repeatedly replicate itself. ERRI/EmergencyNet News has received at least four examples of the virus today and it is believed to be circulating among both government and military computer systems.
Consistent with safe computing practices, ERRI computer security analysts suggest that you update your anti-virus software frequently, do NOT open e-mail from unknown sources, and consult with Microsoft (TM) concerning patches and fixes that can be applied to your e-mail program to prevent e-mail worms such as this from using your Outlook (TM) program to propagate the virus. EmergencyNet News continues to monitor this virus spread closely and will provide additional updates as the circumstances warrant...
Carnegie Mellon University, CERT Coordination Center, Mitigation Resources:
Computer Associates: http://ca.com/virusinfo/virusalert.htm#vbs_sstworm
F-Secure: http://www.f-secure.com/v-descs/onthefly.shtml
McAfee: http://www.mcafee.com/anti-virus/viruses/vbssst/default.asp
Dr. Solomon, NAI: http://vil.nai.com/vil/virusSummary.asp?virus_k=99011
Sophos: http://www.sophos.com/virusinfo/analyses/vbsssta.htm
Symantec: http://www.symantec.com/avcenter/venc/data/vbs.sst@mm.html
Trend Micro:
http://www.antivirus.com/pc-cillin/vinfo/virusencyclo/default5.asp?VName=
VBS_KALAMAR.A
You may wish to visit the CERT/CC's Computer Virus Resources Page
located at: http://www.cert.org/other_sources/viruses.html
ASSESSMENT 00-059
"W32 Navidad@M Worm" Issued at 5:00 p.m. EST, November 16, 2000
The NIPC has been tracking the Navidad Internet worm (W32Navidad@M) and currently assesses that it represents a low threat in the United States. Although there have been media reports of outbreaks of this worm in South Korea and Australia, NIPC's international counterparts have reported no significant outbreaks. Although Navidad does not contain a dangerous payload, it does modify the Windows registry file. The modification makes it impossible to execute most programs with an .exe attachment unless they were already running at the time of infection.
The Navidad worm is propagated through Messaging Application Program Interface (MAPI) based email clients (i.e. Microsoft Outlook/Outlook Express). When executed, it searches through the user's inbox for all messages that contain attachments. For every message found with an attachment, it constructs a separate email message using the identical subject line and body of the message and then forwards the Navidad.exe binary to all the recipients (To and CC) of the found messages. In doing so, it swaps the Navidad.exe binary for the original attachment emailed to the user.
Additional technical information for this worm will be made available in Cybernotes 23 posted on the NIPC's website on November 23, 2000, at: http://www.nipc.gov/cybernotes/cybernotes.htm.
Full descriptions and removal instructions are available at various anti-virus software firms' web sites, including the following: http://www.symantec.com http://www.nai.com http://www.trend.com http://fsecure http://www.sophos
As always, users are advised to keep their anti-virus software current by checking their vendors' web sites frequently for new updates, and to stay apprised of warnings from NIPC, CERT, and other cognizant organizations.
Please report any illegal or malicious activities to
your local FBI office or the NIPC, and to your military or civilian
computer incident response group, as appropriate.
PHILIPPINES:
Philippine investigators filed criminal charges on Thursday against a
computer programming student suspected of having released the "ILOVEYOU"
computer virus which crippled e-mail systems worldwide. The filing of
charges against Onel de Guzman, 23, had been delayed while lawyers for the
National Bureau of Investigation studied evidence and applicable laws. De
Guzman, a student at the Philippines' AMA Computer College, has
acknowledged that he may have released the virus by accident. He refused
to say whether he authored it. The virus, unleashed on 4 May, rapidly
replicated itself via e-mail, overloading corporate e-mail systems in many
countries and causing damage estimated at up to US$10 billion.
UNITED STATES:
New .SHS Virus Reported; Spreading Slowly
A new computer virus struck several companies this week, but it is said to be spreading relatively slowly compared to similar worms such as "ILOVEYOU" and "Melissa." The new virus is spread, like the previous ones, via an e-mail attachment. The e-mail is usually titled: "funny," "life stages" or "jokes" and carries an attachment labeled "life_stages.txt" or "life_stages.txt.shs."
The attachment carries a ".shs" suffix, but many computers automatically hide the suffix, thus making it appear that the attachment is a harmless .txt file. It opens a joke in Microsoft Notepad while activating the virus, replicating and sending itself out to all listings in the user's Microsoft Outlook address book. Although not as damaging as some recent viruses, this latest worm does modify the user's registry and could overload corporate mail servers. It can also spread via IRC and America Online's Instant Messenger.
National Infrastructure Protection Center
Information System Assessment (Assessment 00-48) (VBS.STAGES.A) as of 2330 (EDT) 19 June 2000
The Anti-Virus community has been tracking the propagation of a worm entitled VBS_STAGES since 26 May 2000. This is a multi-application Internet worm which has been crafted to distribute using one of four spreading mechanisms: PIRCH, Outlook, mIRC, and ICQ. Like other known VBS worms, this may arrive via e-mail with a shell scrap (SHS) file attachment (LIFE_STAGES.TXT.SHS).
The worm deletes the registry edit program, sends it to the recycle bin, and creates 10 random files throughout the system. Anti-virus vendors are currently examining these files. While it does not damage files, it could clog e-mail systems. The size of the attachment of an infected message is always 39936 bytes. The worm uses one of the following texts as a subject of the message: "Life Stages" "Funny" or "Jokes" and it might add either "Fw:" to the beginning or "text" to the end of the subject.
A feature of SHS files is that the extension remains hidden, even though the operating system may be set to show file extensions. This shell scrap file can fool the user into believing it is a text file because the SHS extension is not shown and the file may display the icon of a text file. When the file is executed, it displays in notepad a text file containing a joke about the stages of life, while the worm installs in the background.
The NIPC/FBI has opened an investigation into this activity.
The anti-virus software industry has obtained copies of the worm and created a software solution to stop the spread. They rate the worm as a very low to moderate threat in the United States. Full descriptions and removal instructions can be found at various anti-virus software vendor websites, including the following:
http://www.symantec.com
http://www.nai.com
http://www.trend.com
http://www.fsecure.com
http://www.sophos.com
PHILIPPINES/LOVE BUG:
Philippine Dropout to Be Charged for "Love Bug"
Officials said on Wednesday that the Philippine National
Bureau of Investigation (NBI) will file criminal charges this week against
a man suspected to have spread the crippling "Love Bug" computer
virus. But they plan to charge the man under provisions which govern
credit card fraud because the country did not have laws for cybercrime. A
new E-commerce law which came into effect Wednesday cannot be used
retroactively. 04 May to 13 May,
2000 -- Click here for EmergencyNet News reports concerning the "Love Bug"
Virus that has spread world-wide, causing millions of dollars in damage to
computer systems.
National Infrastructure Protection Center Information System Advisory 00-044 "mstream" Distributed Denial of Service Tool (As of 2200 EDT, 24 May 2000)
The potential represented by the "mstream" Distributed Denial of Service (DDoS) exploit is a serious and continuing threat. This advisory provides an update to a previously delivered NIPC DDoS detection tool that now allows users to identify the presence of mstream on host systems. This updated tool can be found at www.nipc.gov/mstream.htm. The NIPC recommends that all computer network owners and organizations examine their systems for evidence of DDoS tools, including mstream.
The mstream DDoS exploit enables intruders to use multiple, internet-connected systems to launch packet flooding denial of service attacks against one or more target systems. It was first discovered in late April 2000 on a compromised Linux system...
Instant
09:00CDT - 20 May 2000
"NewLove" Computer Virus Has Less Impact Than "LoveBug"
A computer virus discovered on Thursday could have made the recent international "LoveBug" attack seem like child's play. But the new virus, which destroys all the data stored on a computer, failed to infect millions of machines around the world, as the previous virus did. For this, the "Love Bug" itself gets part of the credit, because it prompted many e-mail users to take precautions. That virus forced the shutdown of electronic mail systems at government agencies and major corporations two weeks ago. But, anti-virus experts say the "Love Bug" also spurred companies and individuals to adopt new security precautions that screened out the new, more destructive attacker.
08:30CDT - 19 May 2000
New More Deadly "Love" Virus Variant Discovered in the Wild
From ERRI/EmergencyNet News Watch Desk
According to Sophos Anti-Virus personnel, the VBS/NewLove-A virus is a polymorphic Visual Basic Script (VBS) worm that mutates its appearance in an attempt to avoid detection. The virus randomly chooses a filename in your Windows\Recent folder and attempts to forward a mutated version of itself to everybody in your Microsoft Outlook address book.
The name of the file it forwards remains the same but the virus appends a further extension, ".vbs" (for instance, EXPENSES.XLS becomes EXPENSES.XLS.Vbs, etc). The message has the subject line: "FW: <filename>" where filename is the name of the file it is forwarding. It is recommended that you DO NOT open any file attachment with a .vbs extension.
This variant is said to be even more damaging than the original "Love" virus for both your PC and/or any network to which your computer may be attached. EmergencyNet News continues to monitor this virus event and will provide additional updates as circumstances warrant...
Trend Micro: http://www.antivirus.com
Symantec: http://www.symantec.com
Microsoft Office Update: http://officeupdate.microsoft.com
CERT Coordination Center, a government-chartered computer security team: http://www.cert.org
National Infrastructure Protection Center at http://www.nipc.gov
04 Apr 2000
NATIONWIDE:
Severity of 9-1-1/W95/Firkin.worm Questioned by Some Anti-Virus Personnel
According to an article yesterday (04/03/00) by Internetnews.com, Vesselin Bontchev, a researcher with Frisk Software, accuses the National Infrastructure Protection Center (NIPC) of using "alarmist language" in their advisory of 01 April 2000. The SANS Institute, on the other hand disagreed, and said yesterday that the so-called 9-1-1 worm could be potentially dangerous.
Although it does not appear that the worm is presently spread via commonly used methods such a macro-virus attachments or via e-mail (it is using network "File and Print Sharing" connections), experts tell EmergencyNet News that there are four separate versions of the worm and that it may be under constant modification. Future iterations may implement wider or more insidious dissemination methods.
Further, ERRI analysts say that the dangers associated with potential "distributed denial of service attacks" on emergency (9-1-1) communications systems could have disastrous consequences on public heath and safety -- if the worm were to be widely spread. Additionally, the worm, in present form, reportedly destroys hard drives when it is run. Therefore, ERRI analysts say they support the NIPC's advisory.
01 Apr 2000
WASHINGTON, DC:
SUBJECT: NATIONAL INFRASTRUCTURE PROTECTION CENTER INFORMATION SYSTEM ADVISORY (NIPC ADVISORY
00-038); SELF-PROPAGATING 911 SCRIPT
1. A RECENT AND BREAKING FBI CASE HAS REVEALED THE CREATION AND DISSEMINATION OF A
SELF-PROPAGATING SCRIPT THAT CAN ERASE HARD DRIVES AND DIAL-UP 911 EMERGENCY
SYSTEMS. WHILE INVESTIGATION AND TECHNICAL ANALYSIS CONTINUE, THE SCRIPT APPEARS TO
INCLUDE THE FOLLOWING CHARACTERISTICS:
A. ACTIVELY SEARCH THE INTERNET FOR COMPUTER SYSTEMS SET UP FOR FILE AND PRINT
SHARING AND COPY ITSELF ON TO THESE SYSTEMS.
B. OVERWRITE VICTIM HARD DRIVES.
C. CAUSE VICTIM SYSTEMS TO DIAL 911 (POSSIBLY CAUSING EMERGENCY AUTHORITIES TO CHECK
OUT SUBSTANTIAL NUMBERS OF "FALSE POSITIVE" CALLS).
2. TO THIS POINT CASE INFORMATION AND KNOWN VICTIMS SUGGEST A RELATIVELY LIMITED
DISSEMINATION OF THIS SCRIPT IN THE HOUSTON, TEXAS AREA, THROUGH SOURCE COMPUTERS
THAT SCANNED SEVERAL THOUSAND COMPUTERS THROUGH FOUR INTERNET SERVICE PROVIDERS (AMERICA ON-LINE, AT&T, MCI, AND NETZERO). DISSEMINATED SCRIPT MAY BE
PLACED IN HIDDEN DIRECTORIES NAMED "CHODE," "FORESKIN" OR
"DICKHAIR," (ERRI
apologizes for the inappropriate language-but those are the real directory
names). FURTHER SCRIPT ANALYSIS BY THE FBI/NIPC CONTINUES.
3. FBI/NIPC REQUESTS RECIPIENTS IMMEDIATELY REPORT INFORMATION RELATING TO USE OF THIS
SCRIPT TO THE LOCAL FBI OR FBI/NIPC WATCH AT 202-323-3204/3205/ 3206. AS MORE TECHNICAL
OR OPERATIONAL INFORMATION ABOUT THIS SCRIPT DEVELOPS, NIPC WILL DISSEMINATE THIS
INFORMATION THROUGH THE CARNEGIE MELLON CERT, ANTIVIRUS VENDORS OR ITS OWN WEB
SITE (www.nipc.gov), AS APPROPRIATE.
Reference: http://www.nipc.gov/nipc/advis00-038.htm
Internet Hoax Patrol - Provided by CIAC, U.S. Dept. of Energy - Look it up before you believe it!!
24 Dec 99 - From http://www.emergency.com/ennday.htm
National Infrastructure Protection Center (NIPC) Advisory 99-030
Various sources of known reliability are reporting a re-emergence of the W97M/Caligula virus. The currently released virus contains the
same payload found in the original W97M/Caligula virus and should be recognized by up-to-date anti-virus software.
Military, federal, state and local governmental and commercial/educational systems have all been affected by the W97M/Caligula virus recently; the potential for further infection is significant due to increased ongoing release activity. The virus has the following characteristics:
A. W97M.Cali.A is a macro virus. This MS Word 97 macro virus will add a VBA module called "Caligula" into infected documents/templates.
B. While infecting a document or global template, this macro virus uses a temporary text file
"c:\io.vxd".
C. While closing an infected document on the thirty-first day of any month, it displays a message box entitled
W97m/caligula (c) opic [codebreakers 1998].
D. The currently-released W97M/Caligula virus propagates in the same manner as the original W97M/Caligula virus. The virus is
propagated via infected document exchange. This exchange may take place via diskette, local drive, network drive, or email attachment.
E. The payload of W97M/Caligula virus is not currently destructive. The virus searches for PGP secret key ring files
(secring.skr) and
attempts to transmit any located files to a remote host machine. Due to this attempt to obtain keys to encryption software, it can be
reasonably deduced that the primary danger is loss of information.
Inasmuch as this virus has been in widespread circulation for nearly a year, all modern and updated commercial anti-virus packages
should detect and disable this virus. Additional information about this virus is available at the web sites of Symantec
(www.symantec.com/), Network Associates
(www.nai.com), and Trend Micro (www.antivirus.com). NIPC recommends that system administrators be advised to update installed anti-virus software immediately and take other appropriate measures to prevent infection by and spread of W97M/Caligula virus.
The NIPC also recommends widest possible dissemination of this advisory throughout federal, state and local government, military, and private organizations. Please report any information on and damage from infections by this virus to your local FBI office ANSIR or NIPC Coordinator, or
corporate incident response group, as appropriate.
20 Nov 99 - From: http://www.emergency.com/ennday.htm
EUROPE:
New Mutant Christmas Virus Reported
A new virus designed to activate on Christmas day was discover in Europe in the past few day. The new virus is called "Prilissa," a combination of Melissa and another virus program called "PRI," according to a spokesperson from Network Associates. Like Melissa, the virus comes as an attachment in an email. Once opened, the virus will email itself to the first 50 addresses in an infected computer's email contact list. From the PRI code, it then inserts random colored squares into a user's documents. But unlike its predecessors, which mostly only led to pesky email traffic, "Prilissa" can be more dangerous. If opened, a user's hard drive could get re-formatted. The various anti-virus companies are or soon will be distributing an antidote...
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