The Rustock botnet–one of the most prolific sources of spam–went silent this week. Microsoft worked with security vendors and the civil court system to pull the plug on Rustock. Some security experts ...

Microsoft on Thursday wrapped up its civil case against the still-unnamed controllers of the Rustock botnet and handed off the information gleaned during its investigation to the FBI. But the move ...

Everyone who uses e-mail got a special little gift on December 25. You may not have noticed it in all the holiday excitement, but the global spam level dropped significantly because the Rustock botnet ...

The effort to unmask and apprehend the criminals behind the massive Rustock botnet heated up today as Microsoft put up a $250,000 reward for new information on the botnet's operators. Rustock -- which ...

Multiple sources, starting with tech reporter Brian Krebs, are reporting that Rustock, just recently the world's biggest and baddest botnet, has ceased sending spam. The result, for now, is a drop in ...

A series of raids last week submarined Rustock, Microsoft said, noting that it had filed a lawsuit that sparked the raids. Rustock would take control of a computer and use it to send spam. It is ...

In March, Microsoft, the U.S. Federal Marshal service and security firm FireEye took down the Rustock botnet, a network of a million compromised computers surreptitiously managed by a group of ...

Microsoft says it has won its civil case against the Rustock botnet operators and is turning evidence it gathered over to the FBI for a possible criminal case. In a blog post Thursday, Richard ...

It has been four months since Microsoft and federal authorities knocked the prolific spamming botnet Rustock offline, and some 700,000 of the estimated 1.6 million bots worldwide are still infected ...

For more than 24 hours this week, it was a question that very few security experts could answer: Who had knocked the world’s worst spam botnet offline? After infecting close to a million computers and ...