Microsoft botnet take down will not stop spam !
Jan 12, 2011
A prominent security researcher said he doubts Microsoft's take down of the Waledac botnet would have any impact on spam levels, as the company claimed. "Waledac just is not a hugely prolific spammer," said Joe Stewart, director of malware analysis at SecureWorks and a noted botnet researcher. "So I don't think it's going to affect spam [volume]. What it does do lately... what it's used for, is to install rogue antivirus software." The UK-based anti-spam service Spamhaus echoed Stewart today. "If [Microsoft's take-down] did affect spam, we haven't noticed," said Richard Cox, the chief information officer at Spamhaus. Like Stewart, Cox also dismissed Waledac's threat as a spam engine. "Waledac was not a high threat, it's less than 1% of the spam traffic," Cox said. "What we're worried about is Zeus, which is a far more damaging botnet, which is creating a substantial amount of spam." Postini, t...