StatsFirst seenApril 2022Last seenSeptember 2026Alert name variantsAlert NameEngineByteCode-MSIL.Trojan.FsysnaATP Sandbox Adv. HeuristicsWin32.Trojan.FsysnaATP Sandbox Adv. HeuristicsWin64.Trojan.FsysnaATP Sandbox Adv. Heuristics