Rootkits In Decline
Rootkits, which are designed to evade detection and remain on victim's systems for a lengthy period of time, continue to decline, according to McAfee. The company said rootkits have been trending downwards since the middle of 2011.
The rootkit itself is only designed to remain stealthy, but it typically contains other malware, such as keyloggers, designed to record keystrokes, and password stealers. Rootkits are also used to bring an infected machine into a larger botnet. ZeroAccess is the most prevalent rootkit, according to recent studies. According to security firm Sophos, ZeroAccess is often connected to popular exploit toolkits including Blackhole. It is used to fuel click-fraud campaigns and spread spam.