Fake Microsoft Update Contains Malware

Plain text mail samples have recently been found with the subject title 'Windows XP SP3 Critical Update.' Posing as a critical update from Microsoft, the spam sample also comes with an attached executable file that claims to be the update patch and bug fixes for Windows XP Service Pack 2 and 3. The executable file has a detection name of WORM_VB.GAW

• Motor TMASE:6.5
• Patrón TMASE: 7916