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ATT&CK techniqueResource Development

T1608.002 Upload Tool

Resource DevelopmentEnterpriseSub-technique

As of 2026-10-05, T1608.002 (Upload Tool) appears in 11 tracked threats, first reported 2026-02-06 and most recently 2026-08-27, with linked actors including ClickLock Dev, UNC6692, Vanilla Tempest; it most often appears alongside T1071.001 (Web Protocols).

Tracked threats
112 critical, 9 high
First seen
2026-02-06
Last seen
2026-08-27
Threat actors
3In the threats using it
Detection rules
—None mapped yet

Data as of:

Activity timeline

T1608.002 first appeared in tracked threats on and was most recently reported on . The busiest month was 2026-05 with 3 reports, and 11 of the 11 threats were reported in the twelve months to 2026-08.

How adversaries use it

T1608.002 Upload Tool is catalogued by MITRE ATT&CK under the Resource Development tactic in the Enterprise matrix, as a sub-technique of T1608 Stage Capabilities. Threadlinqs maps 11 of 2623 tracked threats (0.4%) to it; by severity that is 2 critical, 9 high.

Threats that use T1608.002 most often also use T1071.001 Web Protocols (8 threats), T1027 Obfuscated Files or Information (7 threats), T1082 System Information Discovery (7 threats), T1005 Data from Local System (6 threats), T1105 Ingress Tool Transfer (6 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.

3 tracked threat actors appear in the threats that use T1608.002; the most frequent are ClickLock Dev (1), UNC6692 (1), Vanilla Tempest (1).

Mitigations

MITRE ATT&CK lists 1 mitigation for T1608.002.

Data sources

Telemetry that can reveal T1608.002, per MITRE ATT&CK.

  • Internet Scan — Response Content

Threat actors using it

Tracked threats

11 tracked threats use T1608.002.

Parent technique

T1608 Stage Capabilities — 250 tracked threats at the technique level.