A new worm has been found on Facebook that spreads by linking to malware-laden sites containing a variant of the Zeus banking Trojan.

"The malware uses stolen Facebook account credentials to log into compromised accounts and post links, according to security researchers at CSIS in Denmark, who were the first to detect the threat," writes The Register's John Leyden. "The malicious links generated by the worm pose as links to a photo file posted by the account-holder's friend or online acquaintance."

"In reality the file is a booby-trapped screensaver file with a .jpg file extension," Leyden writes. "Users have to download and open the file but if tricked into doing so, the consequences can be quite dire -- especially since anti-virus detection rates are quite low."

Go to "Danger worm hijacks Facebook accounts to inject banking Trojan" to read the details.

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