Adversaries may use JamPlus to proxy the execution of a malicious script. JamPlus is a build utility tool for code and data build systems. It works with several popular compilers and can be used for generating workspaces in code editors such as Visual Studio.^[1]

Adversaries may abuse the JamPlus build utility to execute malicious scripts via a .jam file, which describes the build process and required dependencies. Because the malicious script is executed from a reputable developer tool, it may subvert application control security systems such as Smart App Control.^[2],[3]

References

1. Perforce Software, Inc.. (n.d.). JamPlus manual: Quick Start Guide. Retrieved March 21, 2025.
2. Cyble. (2024, September 9). Reputation Hijacking with JamPlus: A Maneuver to Bypass Smart App Control (SAC). Retrieved March 21, 2025.
3. Joe Desimone. (2024, August 5). Dismantling Smart App Control. Retrieved March 21, 2025.

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