Experts at SophosLabs™,
Sophos’s global network of virus, spyware and spam analysis centers,
have warned of a widespread email spam campaign that poses as a
screensaver, but is really designed to install a Trojan horses and
rootkits on infected Windows PCs.

The emails, which are being seen in inboxes worldwide, claim that the
recipient has been sent a screensaver by a friend and tells the user to
open the attachment (called bsaver.zip).

Details …