{
  "node_id": "mitre-attack-t1127-003-jamplus",
  "title": "MITRE ATT&CK T1127.003: JamPlus (Enterprise Tactic TA0005 - Stealth)",
  "domain": "Cybersecurity",
  "version": "1.0.0",
  "last_updated": "2026-06-06",
  "bluf": "MITRE ATT&CK T1127.003 (JamPlus) is an Enterprise Stealth, Execution technique. 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. 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. Affected platforms: Windows. Sub-technique of ATT&CK T1127. ATT&CK-mapped mitigations: M1038 Execution Prevention, M1042 Disable or Remove Feature or Program.",
  "paywall": {
    "status": "LOCKED",
    "unlock_cost_usd": "0.01",
    "skyfire_id": "41779894-ece2-4163-9761-b3b1b76e19b0"
  },
  "crosswalks": {
    "_available_keys": [
      "nist_framework",
      "iso_standard",
      "industry_mapping",
      "mitre_d3fend"
    ],
    "_note": "Full crosswalk values included in vault response"
  },
  "dependencies": [
    "nist-cybersecurity-framework-2-0",
    "iso-27001-2022",
    "nist-sp-800-53-r5",
    "cis-controls-v8",
    "mitre-attack-framework-v14"
  ],
  "primary_citations_count": 6
}