Greetings, PAGENWEB-L@rootsweb.com I thought you would be interested in knowing about this computer Virus... Name: W32/Badtrans@MM Characteristics: UPDATE November 25, 2001 20:30 PST AVERT has raised the Risk Assessment on the Badtrans.b variant to Medium On Watch for corporate users and High for home users. We have received many reports that the virus is being seen and stopped at corporate gateways and mailservers. However, we continue to get reports from the home user segment that they have become infected. This is due to the fact that home users tend to update their DAT files less frequently. As noted below, the virus is detected as W32/Badtrans@MM as the detection technology, which identified the virus first, uses this naming convention for both variants of the Badtrans virus. This new variant of Badtrans drops a password stealing trojan which is detected as PWS-Hooker with the 4173 DATs, or greater, and a variant of PWS-AV with the 4172 DATs. UPDATE November 24, 2001 15:30 PST A new variant of Badtrans has been discovered. This is considered to be variant .b by some companies. VirusScan and other McAfee products with DAT files 4168 are protected from this variant without any updating from that DAT. The variant will be detected as W32/Badtrans@MM when scanning compressed files. This variant is a Medium risk as is the first variant. Your risk of infection is higher if you do not have the 4168 DAT files or above. See the <A href="#Bvariant">.b section below</A> for more details on this variant. Badtrans.a details: This mass mailing worm attempts to send itself using Microsoft Outlook by replying to unread email messages. It also drops a remote access trojan (detected as Backdoor-NK.svr with the 4134 DATs; <I>detected heuristically as New Backdoor prior to the 4134 DAT release</I>). When run, the worm displays a message box entitled, "Install error" which reads, "File data corrupt: probably due to a bad data transmission or bad disk access." A copy is saved into the WINDOWS directory as INETD.EXE and an entry is entered into the WIN.INI file to run INETD.EXE at startup. KERN32.EXE (a backdoor trojan), and HKSDLL.DLL (a keylogger DLL detected as PWS-AV (was DUNpws.av) are written to the WINDOWS SYSTEM directory, and a registry entry is created to load the trojan upon system startup. HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\kerne l32=kern32.exe <I>Note: Under WinNT/2K, an additional registry key value is entered instead of a WIN.INI entry: HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows\RUN=%WinDir%\INETD.EXE </I> Once running, the trojan attempts to mail the victim's IP Address to the author. Once this information is obtained, the author can connect to the infected system via the Internet and steal personal information such as usernames, and passwords. In addition, the trojan also contains a keylogger program which is capable of capturing other vital information such as credit card and bank account numbers and passwords. The next time Windows is loaded, the worm attempts to email itself by replying to unread messages in Microsoft Outlook folders. The worm will be attached to these messages using one of the following filenames (note that some of these filenames are also associated with other threats, such as <A target=_blank href="http://vil.nai.com/vil/dispVirus.asp?virus_k=98797">W95/MTX.gen@M</A >): Card.pif docs.scr fun.pif hamster.ZIP.scr Humor.TXT.pif images.pif New_Napster_Site.DOC.scr news_doc.scr Me_nude.AVI.pif Pics.ZIP.scr README.TXT.pif s3msong.MP3.pif searchURL.scr SETUP.pif Sorry_about_yesterday.DOC.pif YOU_are_FAT!.TXT.pif The message body may contain the text:Take a look to the attachment.<I>AVERT first received an intended version of this worm (10,623 bytes) on April 11 from a company in New Zealand.</I> <A name=Bvariant> Badtrans.b details: This mass mailing worm attempts to send itself using Microsoft Outlook by replying to unread and read email messages. It also mails itself to email addresses found within files that exist on your system. It drops a keylogging trojan (detected as PWS-Hooker with the 4173 DATs, or greater) into the SYSTEM directory as KDLL.DLL. This trojan logs keystrokes for the purpose of stealing personal information (such as credit card and bank account numbers and passwords). This information is later emailed to the virus author(s). When run, this variant copies itself to the WINDOWS SYSTEM directory as KERNEL32.EXE and creates a registry run key to load itself at startup: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ RunOnce\kernel32=kernel32.exe This variant replies to incoming email messages and sends itself to email addresses found in "*.asp" and "*.ht*" files. The sender address used by the virus when emailing itself to others may be chosen from the following list: <FONT size=3><XMP>" Anna" <aizzo@home.com> "JUDY" <JUJUB271@AOL.COM> "Rita Tulliani" <powerpuff@videotron.ca> "Tina" <tina0828@yahoo.com> "Kelly Andersen" <Gravity49@aol.com> "Andy" <andy@hweb-media.com> "Linda" <lgonzal@hotmail.com> "Mon S" <spiderroll@hotmail.com> "Joanna" <joanna@mail.utexas.edu> "JESSICA BENAVIDES" <jessica@aol.com> " Administrator" <administrator@border.net> " Admin" <admin@gte.net> "Support" <support@cyberramp.net> "Monika Prado" <monika@telia.com> "Mary L. Adams" <mary@c-com.net> </XMP></FONT> Additionally, the virus prepends the return address used with an "_" (underscore). Thus replying to an infected message will fail to reach the intended recipient. The message subject is typically: "Re:" The message attachment name will be one of the following: <!-- HIDE ME is created from three sections. The first part is chosen from the possibilities: fun Humor docs info Sorry_about_yesterday Me_nude Card SETUP stuff YOU_are_FAT! HAMSTER news_doc New_Napster_Site README images Pics The second part is chosen from the possibilities: DOC. .MP3. .ZIP. and the last part from the possibilities: pif scr UNHIDE ME --> Card.DOC.pif docs.DOC.pif fun.MP3.pif HAMSTER.DOC.pif Humor.MP3.scr images.DOC.pif info.DOC.scr Me_nude.MP3.scr New_Napster_Site.MP3.pif news_doc.DOC.scr Pics.DOC.scr README.MP3.scr S3MSONG.DOC.scr SEARCHURL.MP3.pif SETUP.DOC.scr Sorry_about_yesterday.MP3.pif stuff.MP3.pif YOU_are_FAT!.MP3.scr This new variant uses the iframe exploit and incorrect MIME header to run automatically on unpatched systems. See <A target=_blank href="http://www.microsoft.com/technet/treeview/default.asp?url=/technet/s ecurity/bulletin/MS01-020.asp">Microsoft Security Bulletin (MS01-020)</A> for more information and a patch. To check your system for this Virus, and to learn how to protect yourself from computer viruses, visit the McAfee.com Clinic at http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=2103. For complete information on this Virus, view McAfee.com's Virus Information Library listing at http://vil.mcafee.com/dispVirus.asp?virus_k=99069. This email was sent to you by Teekeela Williams