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General discussion

W32.Blackmal@mm

by Marianna Schmudlach Mar 24, 2004 2:11PM PST

Discovered on: March 23, 2004
Last Updated on: March 25, 2004 12:22:49 PM

W32.Blackmal@mm is a massmailing worm. It uses its own SMTP engine to email itself to all the contacts in the MSN Messenger, Yahoo Pager, and in the files whose extensions are .htm or .dbx . The email message has a randomly chosen subject line, message, and attachment. The attachment will have .src, .exe, .zip, or .tgz file extension.

W32.Blackmal@mm uses Windows Media Player presentation to mask its malicious intentions and attempts to delete security software and system files.

This threat is written in the Microsoft Visual Basic language and is compressed with UPX.

Type: Worm

http://securityresponse.symantec.com/avcenter/venc/data/w32.blackmal@mm.html