Pushdo Takedown Damages Botnet

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 [...]

“IQ Test” Spam Proliferating via Instant Messages

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 [...]