NON
17
Yes, more and more Sf detections are added recently. Back on 2011 they were added once in a month or less.
But it does not mean it was not working at that time… see the Virustotal results back in 2011, they detected “Sf:Mystic [Cryp]” as avast5 detection (although its version is already 6 at that time).
This is what I saw during these times. There was no DeepScreen back then.
I checked my old malware samples and yes, I sent some samples detected as “Sf:Mystic” to avast lab in Jan 2011.
https://www.virustotal.com/file/2bddc8f914d99e7a3e73896a93b848024704fea8873a740e9cbc37f7a13c8ed2/analysis/1316908834/
https://www.virustotal.com/file/a7b550e521bf41d4acb445aaaca9a93d0c4bb1784be55cd2eb4ab02361db1292/analysis/1310784766/