Netskope Threat Labs

Chaosbuilder

ATP Sandbox Adv. Heuristics

Chaosbuilder refers to detections of the builder behind the Chaos ransomware family, whose leaked construction kit let many crews generate customized ransomware variants. The builder offered options for encryption, persistence, and ransom notes, and its wide availability produced a long tail of low sophistication Chaos based strains.

First seen
May 2022
Last seen
October 2026
Alert Name
ByteCode-MSIL.Ransomware.Chaosbuilder