Rustock

Microsoft hands Rustock botnet case over to FBI

exclusive Microsoft is hoping that federal agents will bring to justice one of the world's most notorious spammers, known to the company only as Cosma2k.

According to Microsoft, Cosma2k is the handle of the alleged ringleader of the Rustock botnet, which earlier this year was the purveyor of more e-mail spam than any other network in the world, sending as many as 30 billion messages a day at its peak.

In March, Microsoft worked with federal law enforcement agents to shut down the Rustock botnet. Earlier this month, the company won a summary judgment against the unnamed defendants that … Read more

Microsoft: Rustock still dead but hunt on for culprits

Though Rustock remains down for the count, according to Microsoft, the hunt goes on for the creators of the infamous botnet.

Rustock was taken down this past March by Microsoft and law enforcement officials who used a combination of legal maneuvers and raids to seize control of the servers that ran the notorious spamming network. Since then, Rustock has remained "dead and decaying," said Richard Boscovich, senior attorney for Microsoft Digital Crimes Unit, in a blog published yesterday.

But taking down the network itself is only half the battle in keeping botnets like Rustock offline. Tracking down the … Read more

Report: Spam down 33 percent after Rustock takedown

The successful takedown of the Rustock botnet cut the volume of spam across the world by one-third, according to Symantec's March 2011 MessageLabs Intelligence Report.

By the end of last year, the notorious botnet was responsible for sending out 44 billion spam messages per day, or more than 47 percent of the world's total output, making it the leading purveyor of spam. Though Rustock lost some steam this year, it still managed to send out more than 13 billion daily spam e-mails earlier this month prior to its takedown, said Symantec.

But legal actions by Microsoft and raids … Read more

Microsoft: The spam vigilante

Links from Friday's episode of Loaded:

Microsoft helps the feds bring down a large e-mail spam outfit.

The New York Times announces its pricing structure for access to digital editions.

Microsoft launches a mobile app to help men be cool.

The FCC may not allow cell phone boosters.

Samsung launches 3D video on demand in Korea.

New research shows that Twitter solidifies social circles of happy and sad people.

Microsoft and feds bring down spam giant Rustock

Rustock, purveyor of more e-mail spam than any other network in the world, was felled last week by Microsoft and federal law enforcement agents.

A lawsuit by Microsoft that was unsealed at the company's request late today triggered several coordinated raids last Wednesday that took down Rustock, a botnet that infected millions of computers with malicious code in order to turn them into a massive spam-sending network.

"This botnet is estimated to have approximately a million infected computers operating under its control and has been known to be capable of sending billions of spam mails every day," … Read more

Report: U.S. leads world in spam output

The U.S. is the spam leader across the world, responsible for one out of every five junk messages sent, according to a report out today from Sophos.

The security vendor's fourth-quarter "Dirty Dozen" report of spam-relaying countries found that the United States upped its percentage of global spam from the third quarter and now accounts for 18.83 percent of all junk e-mails.

That percentage is almost three times higher than second-place India, which is responsible for deploying 6.88 percent of all spam across the globe, according to Sophos. Other countries named on the Dirty … Read more

Rustock botnet responsible for 39 percent of all spam

Botnets are now responsible for sending 95 percent of all spam, up from 84 percent in April, and almost half of that spam comes from a single botnet, Rustock.

Rustock sent 41 percent of the world's botnet spam in August, up from 32 percent in April. This is despite the network actually shrinking in size from 2.5 million to 1.3 million bots over the same period, security company Symantec said on Tuesday. This means Rustock is currently responsible for 39 percent of all the world's spam e-mails.

"Overall, the total amount of spam in circulation … Read more

Botnets cause surge in February spam

Spam now accounts for close to 90 percent of all e-mail worldwide due to a surge in February, according to Symantec.

Two botnets named Grum and Rustock helped push spam levels up 5.5 percent in February over the prior month, according to the security firm's report (PDF). After doing business as usual over the past year, Grum suddenly sprang to life in February, increasing the amount of spam it generated by 51 percent. As a result, the botnet is now to blame for 26 percent of all global spam.

Rustock also surged last month, pushing up global spam … Read more