Security

Researchers at McAfee labs monitor Koobface activities 24/7 via custom honeypots and while reviewing one such update we noticed a variant that had debug/log features. Unlike the traditional captcha breaking technique to create new accounts, this variant of the worm converts the infected machine to a bot. When we analysed the malware trapped in our botnet, we found that this variant of Koobface has a special feature for logging all activities carried out during the infection process in a log file . Log file is created under system root with date and time stamp for eg, C:\fb_reg20090612.log. ...

With the holiday season behind us, cyber scammers and spammers will now be looking towards the upcoming events and worldwide happenings that they can leverage to form the next waves of online trickery. The noteworthy ones on the horizon include Valentine’s Day, tax-filing season, and the FIFA World Cup – all of which will, in all likelihood, produce their own variety of social engineering techniques, online fraud, malware, fake websites, phishing, and spam. ...

InfoSecurity, a great site for computer security news, just put up a story asking the very old question: “Why don’t AV vendors name malcode consistently.” The lead on the piece was: “…Fortinet, Sunbelt Software, and Kaspersky all published their lists of the most prevalent malware strains for the last month of 2009, but they didn’t match up, leading to an admission that users will inevitably be confused by the results.” Great observation, sort of. ...

Following the addition of Win32/Hamweq to the MSRT last month, MMPC will continue cleaning PCs in 2010 by adding another prevalent worm, Win32/Rimecud, to this month’s removal tool. This is due not only to Win32/Rimecud’s high detection numbers, which immediately follow those of Win32/Hamweq, but also to the similarities the two families share with each other. In fact, as part of its payload, Win32/Hamweq may download Win32/Rimecud, contributing to Rimecud’s suitability as the next target for MSRT. ...

This Black Tuesday was different as anticipated – Microsoft releases only one security bulletin, but other companies “jumped in” and deliver updates now as well. For the windows operating systems, only one Security Bulletin was released. MS10-001 deals with a vulnerability in the decompression routines of the Embeded OpenType Font Engine. This means that especially in Windows 2000, programs like Internet Explorer, Word or PowerPoint for example which render EOT fonts can put the system at risk when viewing manipulated contents. In newer operating systems the flawed code is used differently so that Microsoft assumes that it isn’t exploitable there. ...

McColo (Nov. 08), Torpig (May 09), MegaD (Nov. 09), Lethic (Jan 10) The Darkreading.com site is reporting that researchers with communications security firm Neustar, of Sterling, Va., working with ISPs has taken over the command-and-control servers and shut down the Lethic botnet. The owners of the Lethic network specialized in diploma, pharmaceutical and replica spam. It is believed that Lethic was responsible for 10 percent of spam. Other recent botnet takedowns include: — McColo (Nov. 08), — Torpig (May 09), — MegaD (Nov. 09) ...

SysDefenders is the latest addition to the clones of the WiniGuard rogue anti-spyware family. if your computer is infected above malware, you should remove it soon, Click Here to learn how to remove it soon.

The spammers and malware authors profited of the holiday time when a lot of people are at home and sent a large amount of emails just before the official free days. As can be seen in the graphic below, we registered a higher activity in the two days before the holidays and immediately after them. The red bars are either weekend days or holidays (25.12 and 1.1). What kind of spam was sent? ...

I received an interesting IM from a friend via BlackBerry Messenger [BBM] this weekend. She was worried that it could do damage to her shiny new BlackBerry and, as she knew I work for [a security company], she forwarded it to me for my opinion. As soon as I read it, I knew it was a hoax and told her just to delete it. It didn’t really surprise me that these Hoaxes are now being spread via BBM as the devices are becoming increasingly popular. I’m sure all of you have received the usual one via E-mail about a Virus which burns the whole hard disc C of your computer , well now I believe you will be seeing them on your BlackBerry. ...

Malware authors love to innovate when it comes to persistence and hiding their nefarious creations from detection, and although most of the schemes are not unknown to analysts, they still show that malware authors are constantly on the prowl and evolving their techniques. The example I have is of yet another registry-centric malware which by the nature of its construction has several advantages to defeating naive security software. The sample, detected as Troj/RegExec-A, is essentially a multi-component threat of sorts comprising of at least 3 components (Dropper/installer, Payload and Loader.) ...