Fake Microsoft Malware Patch

Malicious attackers are currently mailing notifications for fake a Microsoft patch with a copy of the malware Trojan.Backdor.Haxdoor which looks like a genuine PGP signature. This fake update patch is being mailed as an update for fake Microsoft Outlook Express (KB910721) which is detected as VirTool:Win32/Obfuscafor.FO. The public is advised to be on the lookout for subjects like Install Critical Update for Microsoft Outlook; Microsoft has released an update for Microsoft Outlook and Microsoft Outlook Critical Update.

This same set of botnet masters are widely believed to be the same group of persons who launched a Chase phishing campaign, and another one themed 'Who Killed Michael Jackson?' as well as one pretty successful phishing campaign impersonating the United Services Automobile Association not long ago.

This fast-flux bonet is likely, due to anti-spam, to get to your spam messages. The only way to fight this malware at your end is to avoid clicking on spam messages and opening the email to avoid system attack.