Seculert said, Ramnit, which first appeared in April 2010, again raged. In addition to the terbajak 45,000 Facebook accounts, Ramnit called successfully infect 800,000 machines. This went on from September to December 2011.
Microsoft calls Ramnit as multicomponent malware that infects Windows executable files, Microsoft Office documents, and HTML files. The goal is to steal sensitive information.
Seculert suspicious, irresponsible parties behind Ramnit use stolen data to enter the victim's Facebook account and sends a malicious link to friends. In addition, the criminals targeted access to corporate networks.
"Cyber criminals take advantage of users who use the same password for all accounts (such as Facebook, Gmail, Corporate SSL VPN, and Outlook Web Access). This opportunity is used cyber criminals to enter into a corporate network," explains Seculert.
Facebook itself has said that every day they blocked the 600,000 logins from accounts that are detected are already infected. The amount is only slightly compared to the number of Facebook users who logged in every day, that is 1 billion logins per day.
Facebook says, less than 4 percent of Facebook content is spam and less than 2 percent of Facebook users who see spam accounts every day. It is still far to an e-mail that 89.1 percent of that is spam.
To avoid viruses and spam, how simple can always try is to use a password that is unique and has different passwords for different accounts as well. Use of antivirus updates also help reduce the risk terinfeks