Russian investigators have uncovered chat logs between the botmaster in charge of the “Cutwail” botnet and a founder of a fake pharmaceutical spam operation that hint at the botmaster’s identity. The ...

American and German researchers who infiltrated and crippled one of the world’s biggest spam-producing networks last summer have released a formal paper on the experience, and the numbers are ...

Spammers are harnessing two venerable botnets -- Kelihos and Cutwail -- to send out reams of deceptive emails disguised as news and video clips from the Boston Bombing, but that carry malicious ...

A botnet responsible for a significant amount of spam has been crippled but may reconstitute itself in a matter of weeks, according to vendor M86 Security. The Pushdo or Cutwail network of hacked ...

The once-mighty Waledac botnet, which lay dormant for most of 2010, has suddenly made a strong resurgence into the spam-spewing scene -- and it’s likely that your inbox will soon feel its presence. In ...

Security researchers from Damballa have found a new variant of the Pushdo malware that’s better at hiding its malicious network traffic and is more resilient to coordinated takedown efforts. The ...

Spam is an annoying but constant reality for e-mail users, and February did little to change that fact. According to the latest malware report from MessageLabs Intelligence, the beginning of the month ...