Wikipedia
Ad-Aware
Ad-Aware is an anti-spyware and anti- virus program developed by Lavasoft that detects and removes malware, spyware and adware on a user's computer. According to Lavasoft, Ad-Aware detects spyware, computer viruses, dialers, Trojans, bots, rootkits, data miners, aggressive advertising, parasites, browser hijackers, and tracking components.