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In this issue:
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- Klez Worm, Elkern Virus
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* The Bottom Line
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The Klez email worm infects your system with the Elkern virus,
and sends itself to everyone in your address book.
The Klez worm and Elkern Virus arrives as an email with a random
attachment name. The email subject varies widely but are
typically one of the following:
Hi
Hello
How are you?
Can you help me?
We want peace
Where will you go?
Congratulations!!!
Don't cry
Look at the pretty
Some advice on your shortcoming
Free XXX Pictures
A free hot porn site
Why don't you reply to me?
How about have dinner with me together?
Never kiss a stranger
There is no text in the body of the message... just a random
attachment.
Klez is a mass-mailer worm which drops a polymporphic EXE virus
called ElKern onto your Windows system. If your PC is part of a
local network, Klez will also infect all other machines on your
local network.
The Klez worm copies itself to root directories of local and
network drives with a random name and with double extension, such
as ".TXT.EXE". If you have disabled hiding of file extensions as
detailed at the VACM Archives page, you will be able to see
file(s) ending in ".Txt.Exe" on your system.
The Klez worm takes advantage of an Internet Explorer vulnerability to
automatically execute on systems running unpatched versions of
Microsoft® Internet Explorer versions 5.01 and 5.5.
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* What You Should Do...
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Even if you do not use Internet Explorer, it is installed on your
system and should be updated with the appropriate patch from
Microsoft.
Users of Outlook, Outlook Express and Netscape should change their
email settings to disallow running of JavaScript and ActiveX code.
Update your browser:
----------------------------
IE Browser patches from Microsoft are available at:
IE Patch from Microsoft
Settings for Outlook, Outlook Express and Netscape:
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To make sure your email client does not allow scripts and ActiveX
controls to run, follow the instructions in the following VACM
articles:
Remove Windows Scripting Host
How To Remove Windows Scripting Host
Disable Java and ActiveX in email:
How To Disable Java/ActiveX in your Email
***************************************************
* Klez worm and Elkern virus removal tool...
***************************************************
A utility from F-Secure will disinfect both the Klez worm
and the Elkern virus.
We have made the utility available for download from our
server at:
Klez/ElKern Removal Tool
Best Regards,
Marc Deschenes, VACM Editor
The VACM Project at
Automated PC Solutions
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*** Be sure to check out the appendix at the end of this alert
******** APPENDIX - Handy How-To Tips ********** * How To Boot into Safe Mode Shut the computer down so that the power is off.
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