CryptoLocker file more than 40 hours in the wild but still undetected by AV's on VirusTotal (0/56)

jamescv7

Level 85
Verified
Trusted
Mar 15, 2011
13,088
I think that lower/no definitions update during weekends is a shame, user should consider this when choosing an AV.

Unfortunately almost all Antivirus have lapses or totally soft during weekends, so the samples that were undetected; would be included on weekdays instead.

Solution: Have a heuristic/behavior based Anti-ransomware or Anti-exe tool to complement it.
 
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