A new variant of the Dorkbot malware was discovered on Facebook this week, the malware
was being used by cybercriminals to harvest users' passwords. According to Tech Central the criminals exploited a flaw in the file-sharing site MediaFire to spread the malware. The malware is spread through a botnet that uses the Internet Relay Chat (IRC) protocol to spread.The malware sent links to the malicious app to the victim's Facebook friends via the Facebook chat service. Clicking on the link would download and run the malware.
This is not the first time this year for Facebook to suffer issues. Earlier this year Facebook suffered an "error" that had an astounding ripple effect, as users of popular websites were redirected to a Facebook error page. It became clear to people that Facebook Connect could disrupt every site it linked to -- even more troubling was the view it gave us of possible future hacker attacks.