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ATT&CK techniqueCommand and Control

T1102.002 Bidirectional Communication

Command and ControlEnterpriseSub-technique

As of 2026-10-05, T1102.002 (Bidirectional Communication) appears in 139 tracked threats, first reported 2026-02-04 and most recently 2026-10-02, with linked actors including APT38, TeamPCP, Lazarus Group; it most often appears alongside T1071.001 (Web Protocols).

Tracked threats
13929 critical, 99 high, 11 medium
First seen
2026-02-04
Last seen
2026-10-02
Threat actors
65In the threats using it
Detection rules
425Blue tier and above

Data as of:

Activity timeline

T1102.002 first appeared in tracked threats on and was most recently reported on . The busiest month was 2026-07 with 39 reports, and 139 of the 139 threats were reported in the twelve months to 2026-10.

How adversaries use it

T1102.002 Bidirectional Communication is catalogued by MITRE ATT&CK under the Command and Control tactic in the Enterprise matrix, as a sub-technique of T1102 Web Service. Threadlinqs maps 139 of 2623 tracked threats (5.3%) to it; by severity that is 29 critical, 99 high, 11 medium.

Threats that use T1102.002 most often also use T1071.001 Web Protocols (105 threats), T1204.002 Malicious File (82 threats), T1027 Obfuscated Files or Information (81 threats), T1036.005 Match Legitimate Resource Name or Location (81 threats), T1082 System Information Discovery (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.

65 tracked threat actors appear in the threats that use T1102.002; the most frequent are APT38 (6), TeamPCP (6), Lazarus Group (5), Andariel (4), MuddyWater (4).

Mitigations

MITRE ATT&CK lists 2 mitigations for T1102.002.

Data sources

Telemetry that can reveal T1102.002, per MITRE ATT&CK.

  • Network Traffic — Network Connection Creation, Network Traffic Content, Network Traffic Flow

Threat actors using it

Tracked threats

The 30 most recent of 139 tracked threats that use T1102.002.

Detection coverage

Threadlinqs maintains 425 detection rules mapped to T1102.002 (SPL 151, KQL 136, Sigma 138). Rule content is available to Blue tier accounts and above; this page shows counts only.

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

Parent technique

T1102 Web Service — 396 tracked threats at the technique level.