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ATT&CK techniqueDefense Impairment

T1553.006 Code Signing Policy Modification

Defense ImpairmentEnterpriseSub-technique

As of 2026-10-05, T1553.006 (Code Signing Policy Modification) appears in 14 tracked threats, first reported 2026-02-22 and most recently 2026-09-23, with linked actors including APT38, Andariel, Lazarus Group; it most often appears alongside T1685 (Disable or Modify Tools).

Tracked threats
145 critical, 8 high, 1 medium
First seen
2026-02-22
Last seen
2026-09-23
Threat actors
9In the threats using it
Detection rules
30Blue tier and above

Data as of:

Activity timeline

T1553.006 first appeared in tracked threats on and was most recently reported on . The busiest month was 2026-08 with 4 reports, and 14 of the 14 threats were reported in the twelve months to 2026-09.

How adversaries use it

T1553.006 Code Signing Policy Modification is catalogued by MITRE ATT&CK under the Defense Impairment tactic in the Enterprise matrix, as a sub-technique of T1553 Subvert Trust Controls. Threadlinqs maps 14 of 2623 tracked threats (0.5%) to it; by severity that is 5 critical, 8 high, 1 medium.

Threats that use T1553.006 most often also use T1685 Disable or Modify Tools (11 threats), T1071.001 Web Protocols (8 threats), T1027 Obfuscated Files or Information (7 threats), T1041 Exfiltration Over C2 Channel (7 threats), T1082 System Information Discovery (7 threats). These are the techniques an intrusion set tends to chain with it, so they are the natural next places to look when it is observed.

9 tracked threat actors appear in the threats that use T1553.006; the most frequent are APT38 (2), Andariel (2), Lazarus Group (2), Cytrox (1), Intellexa Consortium (1).

Mitigations

MITRE ATT&CK lists 3 mitigations for T1553.006.

Data sources

Telemetry that can reveal T1553.006, per MITRE ATT&CK.

  • Command — Command Execution
  • Process — Process Creation
  • Windows Registry — Windows Registry Key Modification

Threat actors using it

Tracked threats

14 tracked threats use T1553.006.

Detection coverage

Threadlinqs maintains 30 detection rules mapped to T1553.006 (SPL 11, KQL 7, Sigma 12). Rule content is available to Blue tier accounts and above; this page shows counts only.

30 detection rules (SPL/KQL/Sigma) · Blue and above. Compare plans

Parent technique

T1553 Subvert Trust Controls — 160 tracked threats at the technique level.