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ATT&CK techniqueStealth (formerly Defense Evasion)Discovery

T1497.001 System Checks

Stealth (formerly Defense Evasion)DiscoveryEnterpriseSub-technique

As of 2026-10-05, T1497.001 (System Checks) appears in 131 tracked threats, first reported 2021-11-25 and most recently 2026-10-02, with linked actors including TeamPCP, UAT-11795, APT38; it most often appears alongside T1071.001 (Web Protocols).

Tracked threats
13115 critical, 103 high, 13 medium
First seen
2021-11-25
Last seen
2026-10-02
Threat actors
49In the threats using it
Detection rules
206Blue tier and above

Data as of:

Activity timeline

T1497.001 first appeared in tracked threats on and was most recently reported on . The busiest month was 2026-07 with 47 reports, and 130 of the 131 threats were reported in the twelve months to 2026-10.

How adversaries use it

T1497.001 System Checks is catalogued by MITRE ATT&CK under the Stealth (formerly Defense Evasion) and Discovery tactics in the Enterprise matrix, as a sub-technique of T1497 Virtualization/Sandbox Evasion. Threadlinqs maps 131 of 2623 tracked threats (5%) to it; by severity that is 15 critical, 103 high, 13 medium.

Threats that use T1497.001 most often also use T1071.001 Web Protocols (108 threats), T1082 System Information Discovery (95 threats), T1027 Obfuscated Files or Information (91 threats), T1204.002 Malicious File (85 threats), T1140 Deobfuscate/Decode Files or Information (81 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.

49 tracked threat actors appear in the threats that use T1497.001; the most frequent are TeamPCP (3), UAT-11795 (3), APT38 (2), Contagious Interview (2), Contagious Interview - G1052 (2).

Data sources

Telemetry that can reveal T1497.001, per MITRE ATT&CK.

  • Command — Command Execution
  • Process — OS API Execution, Process Creation

Threat actors using it

Tracked threats

The 30 most recent of 131 tracked threats that use T1497.001.

Detection coverage

Threadlinqs maintains 206 detection rules mapped to T1497.001 (SPL 49, KQL 76, Sigma 81). Rule content is available to Blue tier accounts and above; this page shows counts only.

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

Parent technique

T1497 Virtualization/Sandbox Evasion — 282 tracked threats at the technique level.