There is an online banking Trojan out there that is bypassing uptodate antivirus programs as much as 77 of the time, according to security company Trusteer.

The Zeus Trojan is also known as Zbot, WSNPOEM, NTOS and PRG. It is the most prevalent financial malware on the web, Trusteer says. When we set out to measure the efficiency of antivirus products in the wild against Zeus, we had no idea what kind of results we would get, said Amit Klein, CTO of Trusteer and head of the companys research organization. The findings, that uptodate antivirus programs were only effective at blocking Zeus infections 23 percent of the time, are disturbing.