Since its inception some six years ago, the Cutwail / Pandex botnet experienced its fair share of setbacks, but it's still going strong.
Yesterday's worm rampage that left many a Tumblr site "defaced" with a message by Internet troll group GNAA was the result of improper input sanitation.
An aggressive variant of the VBNA-X "autorun" worm is finding its way onto users' computers, preparing them for further malicious downloads, warns Sophos.
Last week reports came out stating that the Dorkbot worm is now targeting Skype users.
A rather industrious piece of malware that - among other things - paves the way for other malware by disabling AV solutions and software update modules has been spotted spreading via several Instant Messaging applications (ICQ, Skype, GTalk, Pidgin, MSN, YIM) and Facebook: The victims receive a message from an unknown user, offering a link to a funny or interesting video.