Last week it was reported that the Pushdo botnet, used to send spam using the Cutwail spamming module, was taken down, thanks to the efforts of several security researchers. Thirty command-and-control (C&C) servers of the Pushdo/Cutwail botnet were identified, almost 20 of which were taken down after their Internet hosting providers were notified. So far, [...]

Post from: TrendLabs | Malware Blog - by Trend Micro

Pushdo Takedown Damages Botnet

I recently came across a round of spammed instant messages that arrived via my Yahoo! Messenger account. These messages were supposedly sent from my cousin’s account, and used the following format and were sent to everyone on her friends list: The familiar message format told me that I was chatting with a bot that wanted [...]

Post from: TrendLabs | Malware Blog - by Trend Micro

“IQ Test” Spam Proliferating via Instant Messages

Timing is everything, especially if you’re trying to spread malware. Last week, the developers of the popular Twitter application TweetDeck notified users that due to changes in the authentication protocols Twitter supports, users of older versions will have to upgrade. Naturally, cybercriminals latched onto this bit of news and sent out their own Tweets saying [...]

Post from: TrendLabs | Malware Blog - by Trend Micro

TDSS Pretending to Be TweetDeck Update