StatsFirst seenMay 2025Last seenOctober 2026Alert name variantsAlert NameEngineByteCode-MSIL.Backdoor.CsharpstreamerATP Sandbox Adv. HeuristicsRelated IPS SignaturesSignature NameEngineMALWARE-CNC Win.Trojan.CSharpStreamer variant outbound connection attemptIPS-SWG