Timing is everything when it comes to event-based social engineering attacks.

A currently spamvertised malware campaign is brand-jacking Microsoft’s Patch Tuesday for ZeuS crimeware serving purposes. What’s particularly interesting about the campaign, first observed on May 6th, is that the email message is localized to a second language in an attempt to better targeted the spamvertised audience. Moreover, the campaign is relying on a compromised domain for hosting the actual ZeuS binary.
http://www.zdnet.com/blog/security/f...crimeware/8646