cerbersyslock
Intelligence Profile
CerBerSysLock first appeared in December 2017 as a cryptoransomware imposter, leveraging Cerber-style branding to deceive victims. It uses XOR-based encryption to lock files and appends extensions such as .CerBerSysLocked0009881. Victims receive a ransom note titled “HOW TO DECRYPT FILES.txt”, which falsely claims to be from the Cerber ransomware. The note includes an email contact—[email protected]—and instructs victims to reference their ID (e.g., "CerBerSysLocked0009881") when communicating. The ransomware is technically linked to the Xorist family and is generally considered an opportunistic, low-profile scam rather than part of a broader Ransomware-as-a-Service (RaaS) operation.
Threat Analysis
cerbersyslock is a known-sophistication threat actor of undetermined national origin, engaged in cyber operations with a primary motivation of financial.
Financially motivated threat actors like cerbersyslock prioritize monetary gain through methods such as ransomware deployment, banking trojans, cryptocurrency theft, BEC scams, or credential harvesting for resale on underground markets.