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Latest Fortinet Threat Landscape Research Shows Re-Emergence of Torpig Botnet | |
Posted: Wed Apr 13, 2011 04:28:42 PM | |
SUNNYVALE, Calif., April 13, 2011 "The rigid Torpig botnet has been around for years and typically spreads through infected Web pages installed with a rootkit (mebroot) that infects a system right from the master boot record," said Derek Manky, senior security strategist at Fortinet. "Since this compromises the chain of trust from the get-go, mebroot has the ability to bypass personal firewalls through the operating system. Gateway security can mitigate this threat by blocking mebroot related traffic." Spam Activity Spam rates continue to remain lower than average at about 30 percent following the takedown of the Rustock botnet in March. While rates remain low, the number of spamming IPs (machines) has not taken a large drop. Most spamming IP addresses observed were geolocated to machines in the U.S., India and Brazil. "Oftentimes machines are infected with multiple viruses or botnets that can continue to send spam and siphon data, despite one threat being mitigated," Manky said. |