Compromise Software Dependencies and Development Tools
Where this stands
No Sigma rule can address this — the telemetry MITRE names has no Sigma logsource behind it.
Sigma has no logsource taxonomy for mobile platforms. MITRE's telemetry here is mobile EDR and device APIs, which no Sigma rule can address.
What the technique is
Adversaries may manipulate products or product delivery mechanisms prior to receipt by a final consumer for the purpose of data or system compromise. Applications often depend on external software to function properly. Popular open source projects that are used as dependencies in many applications may be targeted as a means to add malicious code to users of the dependency.
Read it on attack.mitre.orgWhat MITRE says you would watch
- AN1823
A legitimate-seeming application or update is installed through an expected or previously trusted path, but shortly after first run or update the application exhibits new runtime behavior, sensor use, file staging, or network communications inconsistent with its historical baseline, documented role, or prior version. The defender specifically looks for behaviors commonly introduced by compromised third-party libraries or manipulated build tooling, such as unexpected background service activation, first-seen framework use, new permissions exercised, novel network destinations, or dropped local artifacts not aligned to the app's expected function.
- AN1824
A legitimate-seeming app or update arrives through an expected or trusted distribution path, but the delivered application begins showing new entitlement exercise, background activity, framework use, sensor access, or network behavior inconsistent with its prior baseline or documented role. Because direct inspection of compromised dependencies or developer tooling is weaker on iOS, the defender emphasizes supervised-device app inventory, post-update behavior drift, new first-run or background patterns, and downstream communications that suggest compromised embedded libraries or manipulated build outputs.
Technique names and descriptions © MITRE ATT&CK®, CC BY 4.0. Not endorsed by MITRE.