Orca antivirus for Windows PC, virus and malware cleaner
Scan for and remove malware and spyware
Monitors system changes on a Windows machine
Locks backup files disallowing malware (cryptolockers) to alter them
portable zipped version of the free and open source antivirus ClamWin
A free utility that finds malware and other threats
Open Source Pinoy Antivirus
Creates permanent autorun.inf to avoid USB infections
Run Windows XP & 7 Virus Free Inside Ubuntu & All Derivatives
Run Windows XP & 7 Virus Free Inside Linux Mint
Windows Network Simulation tool for Malware Analysis