Beware of emails that include a clickable .pdf file, warns Net security firm Eset. The malware is called Hesperbot and has infected machines in the UK, Turkey, the Czech Republic and Portugal.

It may be coming to a computer near you!! Once installed, Hesperbot can silently snoop on passwords by logging a user's keystrokes, take screenshots, record from a video camera if one is connected, intercept network traffic, and pipe all this snaffled data to the crooks' command server. Once infected, the hackers can use the virus to siphon off your bank accounts.

It also tries to persuade the victim to install the malware on their Symbian, Blackberry or Android phone.

“Analysis of the threat revealed that we were dealing with a banking trojan, with similar functionality and identical goals to the infamous Zeus and SpyEye, but significant implementation differences indicated that this is a new malware family, not a variant of a previously known trojan,” said Robert Lipovsky, ESET malware researcher who leads the team analyzing the malware.