Enter upstart file-scanning services like av-check.com and virtest.com, which bank on the guarantee that they won’t share your malware with the anti-virus community. For $1 per file scanned (or a $40 monthly membership) av-check.com will see if your file is detected by any of 22 anti-virus products, including AVAST, AVG, Avira, BitDefender, NOD32, F-Secure, Kaspersky, [...]