The untold story of incident response: A Christmas Miracle

**Group-IB recounts a rapid incident response where Threat Intelligence identified a SystemBC C2 and DFIR/Managed XDR teams stopped a ransomware intrusion before file encryption; the report details timelines, artifacts (Mimikatz outputs, net scanner configs, AnyDesk, dfControl, PCHunter, Cobalt Strike), evidence of an initial access broker and a follow-on ransomware actor, and remediation steps including blocking malicious binaries and neutralizing the C2.**