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ATT&CK techniqueStealth (formerly Defense Evasion)

T1211 Exploitation for Stealth

Stealth (formerly Defense Evasion)Enterprise

As of 2026-10-05, T1211 (Exploitation for Stealth) appears in 278 tracked threats, first reported 2026-02-02 and most recently 2026-10-02, with linked actors including The Gentlemen, Chaotic Eclipse, Gamaredon; it most often appears alongside T1068 (Exploitation for Privilege Escalation).

Tracked threats
278154 critical, 110 high, 11 medium
First seen
2026-02-02
Last seen
2026-10-02
Threat actors
26In the threats using it
Detection rules
309Blue tier and above

Data as of:

Activity timeline

T1211 first appeared in tracked threats on and was most recently reported on . The busiest month was 2026-07 with 150 reports, and 278 of the 278 threats were reported in the twelve months to 2026-10.

How adversaries use it

T1211 Exploitation for Stealth is catalogued by MITRE ATT&CK under the Stealth (formerly Defense Evasion) tactic in the Enterprise matrix. Threadlinqs maps 278 of 2623 tracked threats (10.6%) to it; by severity that is 154 critical, 110 high, 11 medium.

Threats that use T1211 most often also use T1068 Exploitation for Privilege Escalation (229 threats), T1190 Exploit Public-Facing Application (191 threats), T1005 Data from Local System (157 threats), T1082 System Information Discovery (151 threats), T1059 Command and Scripting Interpreter (144 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.

26 tracked threat actors appear in the threats that use T1211; the most frequent are The Gentlemen (4), Chaotic Eclipse (2), Gamaredon (2), Nightmare Eclipse (2), Storm-2603 (2).

Mitigations

MITRE ATT&CK lists 4 mitigations for T1211.

Data sources

Telemetry that can reveal T1211, per MITRE ATT&CK.

  • Application Log — Application Log Content
  • Process — Process Creation

Threat actors using it

Tracked threats

The 30 most recent of 278 tracked threats that use T1211.

Detection coverage

Threadlinqs maintains 309 detection rules mapped to T1211 (SPL 86, KQL 106, Sigma 115, other 2). Rule content is available to Blue tier accounts and above; this page shows counts only.

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