Cybercrime prevention applications provider ThreatMetrix has detected a new strain of Zeus malware that will put Facebook and Gmail users at risk for cybercrime.

The company has identified the strain as a new variant of the peer-to-peer (P2P) version of the Zeus Trojan.

ThreatMetrix claims that the variant malware steals credit card information by posing as the typical login pages for Facebook and Gmail and then asking users to enter credit card credentials.

It catches victims off-guard by waiting to attack until after a website’s login page appears to be functioning normally.

Facebook and Gmail users will initially see a normal login page, but once the username and password are entered, fraudulent pages appear asking for user credit card information, posing as genuine assets of Facebook or Gmail.

The company said the malware could come with offers like: "Transferring Facebook Credits to your bank account is now available!", "Earn up to 20 percent cash back purchasing Facebook Credits with your MasterCard or Visa debit card" and "Link your debit card right now with your Google Mail account to pay simply and securely at more than 3,000 stores online."