Also known as: Coroxy
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SystemBC is a malware family offered as a malware-as-a-service (MaaS) that is used to establish command and control and facilitate follow-on activity, including ransomware deployment.SystemBC executes a variety of tasks including setting up SOCKS5 proxies, maintaining persistence, ingesting malicious files, and handing C2 communication. SystemBC was first detected in 2018, and has been used by Wizard Spider since at least 2020, and by FIN7 since at least 2022.(Citation: TrumanKroll_SYSTEMBCServer_Jan2024)(Citation: SophosGnGal_SystemBC_Dec2020)(Citation: BlackBasta)(Citation: AhnLab_SystemBC_Apr2022)(Citation: Lumen_SystemBC_Sept2025)