Some of our lists have been hit very hard with infections. REMEMBER...do not open attachments unless you are expecting them! Rootsweb strips attachments before messages go out so NO email from the list will ever have an attachment! >From http://www.symantec.com/avcenter/venc/data/pf/[email protected] Symantec Security Response http://securityresponse.symantec.com [email protected] Discovered on: November 24, 2001 Last Updated on: November 24, 2001 at 12:19:48 PM PST [email protected] is a MAPI worm that emails itself out as one of several different file names. This worm also drops a backdoor trojan that logs keystrokes. Type: Worm Virus Definitions: November 24, 2001 Threat Assessment: Wild: Medium Damage: Low Distribution: High Wild: Number of infections: 50 - 999 Number of sites: 3 - 9 Geographical distribution: Medium Threat containment: Easy Removal: Easy Damage: Payload: Large scale e-mailing: Sends email from addresses found in the default MAPI program. Compromises security settings: Installs keystroke logging Trojan. Technical description: This worm arrives as an email with one of several attachment names and a combination of two appended extensions. The list of possible file names is: HUMOR DOCS S3MSONG ME_NUDE CARD SEARCHURL YOU_ARE_FAT! NEWS_DOC IMAGES PICS The first extension that is appended to the file name is one of the following: .DOC .MP3 .ZIP The second extension that is appended to the file name is one of the following: .pif .scr The resulting file name would look something like this: CARD.DOC.PIF NEWS_DOC.MP3.SCR etc. When executed, this worm copies itself as kernel32.exe in the "\windows\system" directory. It then adds the following registry value: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Kernel3 2=kernel32.exe. Prevention methods: 1. Corporate email filtering systems should block all email that have attachments with the extensions .scr and .pif. 2. Users should not open any emails with an attachment that matches the names listed above. Any email that has such an attachment should be deleted. Removal instructions: 1. Run LiveUpdate to make sure that you have the most recent virus definitions. 2. Start Norton AntiVirus (NAV), and make sure that NAV is configured to scan all files. For instructions on how to do this, read the document How to configure Norton AntiVirus to scan all files. 3. Run a full system scan. 4. Delete all files that are detected as [email protected] 5. Remove the registry value listed above. Write-up by: Patrick Martin