botnet

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

Malware has been found in the wild that masquerades as harmless Linux/Unix-like software for routers, but is in fact an IRC backdoor.

The malware, which poses as a .elf file, has infected machines in Latin America, security company Trend Micro said in a blog post yesterday. Trend Micro has called the exploit ELF_TSUNAMI.R., and says it can also compromise D-Link DWL-900AP+ access points.

An infected machine connects to a botnet on internet relay chat (IRC) servers, Trend Micro said. The exploit may perform brute-force attacks on router username password pairs. At the time of writing, Trend Micro was … Read more

The Conficker worm may have been squashed, but this nasty piece of malware is still squirming around millions of computers around the world.

Those were the findings of the Conficker Working Group, a collection of antivirus vendors and several other parties that joined forces in 2009 and 2010 to try to stomp out the worm.

Releasing a "Lessons Learned" document (PDF) yesterday, the CWG claimed success in ultimately stopping Conficker from communicating with its creator, thus preventing it from updating into newer and more dangerous variants. The group seemed especially proud of the way the various organizations and … Read more

Microsoft yesterday quietly released the latest version of its Security Essentials anti-malware software.

Security Essentials 2.0 is available as a free download with several changes over its predecessor. A Microsoft representative today confirmed the release.

Microsoft said the updated anti-malware engine makes the software faster and smarter at detecting security hazards. The software also now ties in with Windows Firewall, giving you the option of turning the firewall on or off. When I installed the 2.0 edition, it detected that Windows Firewall was not running and asked if I wanted to enable it.

The new version integrates with … Read more

Cybercriminals are likely to find more jobs next year, one of five top trends forecast by security vendor Fortinet.

In an ironic twist in the job market, more positions will open up for developers who can write customized malware packers, people who can break CAPTCHA codes, and distributors who can spread malicious code, according to Fortinet.

And though cybercrooks have typically deployed their own botnets themselves, Fortinet believes this job will increasingly be farmed out to middlemen, citing the Alureon and Hiloti botnets as two examples of malware distributed this way. Money mules responsible for wiring funds and cashing checks … Read more

Spam may be down but malware marches merrily on.

That's the message from the "November Threat Landscape Report" released yesterday by security vendor Fortinet.

Global spam levels ultimately fell 12 percent in November after Dutch authorities took down a large Bredolab network made up of 140 different servers. The Bredolab botnet was typically used by cybercriminals to send out spam selling fake drugs, according to Fortinet. Spam had actually fallen as much as 26 percent the week after the network was dismantled but was able to stage a bit of a recovery afterward.

The ever-present Koobface botnet, … Read more

Spam hit a two-year low this past quarter, but malware is at an all-time high, according to McAfee's latest Threats Report.

Out today, the "McAfee Threats Report: Third Quarter 2010" (PDF) found that though spam is still high, it continued its overall decline from January, both globally and nationally. With the exception of Russia, Greece, Belarus, and Indonesia, all countries tracked by McAfee showed a drop in spam levels.

So much for the good news.

On the down side, malware has reached an all-time high, according to the security technology company, which identified an average of 60,000 new threats each day in the third quarter, almost quadrupling since 2007. For 2010 so far, McAfee has discovered 14 million unique pieces of malware, a million more than this time last year.

One of the more "sophisticated" threats that reared its head this year was the Zeus botnet, designed to steal information during banking transactions. Over the third quarter, Zeus expanded its scope by targeting mobile devices, specifically attempting to grab SMS messages sent to validate the transactions. McAfee also noticed a rise in e-mail campaigns launched to spread the botnet by sending out messages claiming to come from FedEx, the IRS, the U.S. Post Office, and other such parties.… Read more

Panda Security has launched its latest product, this one geared specifically for Mac users.

The security firm today unveiled Panda Antivirus for the Mac, designed to defend Mac OS and OS X users against viruses, spyware, adware, and other forms of malware. In addition to scanning e-mail and local files on the Mac, the new software will prevent Mac users from unknowingly sending malware-infected documents to friends and colleagues running Windows or Linux, Panda said.

Moving beyond the computer, the software will also scan iPhones, iPads, and iPods to make sure those portable gadgets aren't delivering malware to other … Read more

The United States is now the top source of spam, accounting for almost 19 percent of all junk e-mail sent throughout the world, according to a new report out today from Sophos.

The security firm's "Dirty Dozen" report highlighted the top 12 countries responsible for the world's supply of spam during the third quarter. With the United States generating almost 2.5 times more spam than second-place India, the country now accounts for almost one in five junk messages. The United States' 18.6 percent share of all global spam also showed a significant jump from … Read more