Threadlinqs IntelligenceStart free

ATT&CK techniqueCredential AccessDiscovery

T1040 Network Sniffing

Credential AccessDiscoveryEnterprise

As of 2026-10-05, T1040 (Network Sniffing) appears in 71 tracked threats, first reported 2026-02-02 and most recently 2026-09-30, with linked actors including Static Tundra, FSB Center 16, FortiBleed operator; it most often appears alongside T1190 (Exploit Public-Facing Application).

Tracked threats
7142 critical, 22 high, 6 medium
First seen
2026-02-02
Last seen
2026-09-30
Threat actors
21In the threats using it
Detection rules
50Blue tier and above

Data as of:

Activity timeline

T1040 first appeared in tracked threats on and was most recently reported on . The busiest month was 2026-07 with 29 reports, and 71 of the 71 threats were reported in the twelve months to 2026-09.

How adversaries use it

T1040 Network Sniffing is catalogued by MITRE ATT&CK under the Credential Access and Discovery tactics in the Enterprise matrix. Threadlinqs maps 71 of 2623 tracked threats (2.7%) to it; by severity that is 42 critical, 22 high, 6 medium.

Threats that use T1040 most often also use T1190 Exploit Public-Facing Application (60 threats), T1046 Network Service Discovery (45 threats), T1078 Valid Accounts (38 threats), T1059 Command and Scripting Interpreter (34 threats), T1595 Active Scanning (34 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.

21 tracked threat actors appear in the threats that use T1040; the most frequent are Static Tundra (5), FSB Center 16 (3), FortiBleed operator (3), INC Ransom (3), INC Ransom - G1032 (3).

Mitigations

MITRE ATT&CK lists 4 mitigations for T1040.

Data sources

Telemetry that can reveal T1040, per MITRE ATT&CK.

  • Command — Command Execution
  • Process — Process Creation

Threat actors using it

Tracked threats

The 30 most recent of 71 tracked threats that use T1040.

Detection coverage

Threadlinqs maintains 50 detection rules mapped to T1040 (SPL 19, KQL 17, Sigma 14). Rule content is available to Blue tier accounts and above; this page shows counts only.

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