Size: 12MB
Quickly scans your computer for a wide range of spyware pests. Identifies threats that may be used to steal your identity, track your online behavior, and slow your computer to a crawl. The trial removes lower level spyware threats. Please note that this doesn't remove all spyware found, only low level threats. Read more at their site.
Virustotal offers a free service for scanning suspicious files using several antivirus engines. Just upload your file, and it scans it for you. Please read more information about it here.