Malwarebytes - Malwarebytes protects you against malware, ransomware, and other advanced online threats that have made antivirus obsolete and ineffective. Free Anti-Malware & Malware .
Panda USB Vaccine - All the info about your cybersecurity.
Kaspersky AntiVirus - Download the best FREE antivirus for Windows-based desktops, laptops, & tablets and get the core protection against viruses, spyware, phishing & dangerous websites.
SMADAV - Smadav can detect many new unknown virus in USB even if the virus is not in the database.
AdwCleaner - AdwCleaner is a free removal tool for : Adware (ads softwares)
No Autorun - A tool to block viruses in USB flash/disk from auto-running.