HijackThis - HijackThis is a malware detection and removal tool that's ideal for users who demand more granular control over every aspect of their computer's performance.
MBRCheck - MBRCheck identifies infected Master Boot Records (MBR).
Autoruns - See what programs are configured to startup automatically when your system boots and you login.
GMER - GMER is an application that detects and removes rootkits .
Emsisoft HiJackFree - Emsisoft HiJackFree is an system analysis tool to detect and remove any kinds of HiJackers...
RootkitRevealer - RootkitRevealer is an advanced rootkit detection utility.