Wiz Feinberg
From:
Mid-Michigan, USA
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Posted 3 Jan 2006 10:08 pm |
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Microsoft Security Advisory (912920)
Systems that are infected with Win32/Sober.Z@mm may download and run malicious files from certain Web domains beginning on January 6, 2006
Microsoft is aware of the Sober mass mailer worm variant named Win32/Sober.Z@mm. The worm tries to entice users through social engineering efforts into opening an attached file or executable in e-mail. If the recipient opens the file or executable, the worm sends itself to all the contacts that are contained in the system’s address book. Customers who are using the most recent and updated antivirus software are at a reduced risk from infection by the Win32/Sober.Z@mm worm.
On systems that are infected by Win32/Sober.Z@mm, the malware is programmed to download and run malicious files from certain Web domains beginning on January 6, 2006. Beginning approximately every two weeks thereafter, the worm is set to begin downloading and running malicious files from additional sites on the same Web domains.
As with all currently known variants of the Sober worm, the worm does not appear to target a security vulnerability, but rather relies on the user opening an infected attachment.
Microsoft added detection for the latest Sober variants in its December 2005 update to the Malicious Software Removal Tool and in the Windows Live Safety Center.
Microsoft will release an updated version of the Malicious Software Removal Tool on January 10, 2006, that will further assist in the detection and removal of known malware threats including Sober and its known variants.
The full Advisory is here. |
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