World’s nastiest trojan fools AV software

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World’s nastiest trojan fools AV software. Zeus goes undetected by the majority PCs running anti-virus programs.

Once again on Microsoft Platform:

One of the world's nastiest password-stealing trojans evades detection by the majority PCs running anti-virus programs, according to a study that examined 10,000 machines. Zeus, a stealthy piece of malware that sits on a PC and waits for users to log in to bank websites, is detected just 23 per cent of time by AV programs, according to the study PDF released by security firm Trusteer. Even AV programs with up-to-date malware signatures were unable to identify the infection a majority of the time, the authors said. Zeus, which also goes by the name Zbot and PRG, escapes detection using sophisticated techniques such as root-kit technology, the Trusteer report said. The company is able to detect it by examining the fingerprint Zeus leaves when it penetrates an infected PC's browser process. A recent report estimated that Zeus is the No. 1 trojan, with 3.6 million infections in the US alone, or about 1 per cent of the installed base of PCs. Trusteer's study, which found Zeus accounted for 44 per cent of the banking malware infections, was consistent with that finding. After sneaking onto a PC, it sits quietly in the background until a user logs on to a financial website. It then sends the login credentials to a remote server in real time, sometimes by use of instant messaging programs. Of Zeus-infected machines, about 31 per cent don't run AV at all and 14 percent run AV that's out of date. The remaining 55 per cent had AV programs that were up to date. ® via World's nastiest trojan fools AV software • The Register.

The criminals will always win. How many doors will you close? And how long? Is it time to move to Linux?

That's why we based our small business server on Linux. No more viruses... bye bye.

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