Virus Alert: W32/BadTrans Worm Spreading | AccountingWEB

Virus Alert: W32/BadTrans Worm Spreading

Over the weekend, home e-mail users have reported the spread of a new e-mail worm that targets vulnerabilities in Microsoft Outlook and Outlook Express to send itself to unanswered e-mail in the user's inbox.

According to user reports and virus resource sites, W32/BadTrans arrives with a message subject heading beginning with "Re:" - and often nothing else. The e-mail carries an attachment with two variable filename attachments; however, Windows may hide the existence of the second file extension from the user. Note that the virus can activate itself when the e-mail is viewed; turning off the Preview window option can help.

With the virus spreading over the weekend, CERT advised commercial e-mail system managers to block all e-mail bearing attachments with the extensions .scr and .pif. Home users should not open any e-mail that has an attachment in which the second extension is .pif or .scr. Any e-mail that has such an attachment should be deleted.

If activated, W32/BadTrans downloads an executable file, "Kernel32.exe" to the Windows directory and two other files to the Windows/System directory: "kdll.dll" and "cp_25389.nls". Kdll.dll includes a routine to record keystrokes and cached passwords from the infected computer into the "cp_25389.nls" file in encrypted form. The keystroke file is then mailed to one of several e-mail addresses.

The program also sets a registry key that will need to be removed. The process for complete removal of the virus and the registry key is explained at the Symantec Security Response Center. A tool for removing the virus is also provided at this site.

Wait, there's more!
There's always more at AccountingWEB. We're an active community of financial professionals and journalists who strive to bring you valuable content every day. If you'd like, let us know your interests and we'll send you a few articles every week either in taxation, practice excellence, or just our most popular stories from that week. It's free to sign up and to be a part of our community.