threat actor · Iran
Cleaver
5 techniques · 4 software
The strips, in order: the CVEs it is reported to exploit by weakness class and by vendor, the techniques ATT&CK says it uses by tactic, its malware and tools, then who it targets. Each square is one record.
Open G0003 on attack.mitre.orgCleaver is a threat group that has been attributed to Iranian actors and is responsible for activity tracked as Operation Cleaver. Strong circumstantial evidence suggests Cleaver is linked to Threat Group 2889 (TG-2889).
Source: MITRE ATT&CK, G0003. © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation.
- Also known as
- Threat Group 2889, TG-2889, Operation Cleaver, Op Cleaver, Tarh Andishan, Alibaba, Cobalt Gypsy
- Origin
- Iran
- Suspected sponsor
- Iran (Islamic Republic of)
- Motivation
- Espionage
- MITRE ATT&CK
- G0003
- On record in
- ATT&CK G0003 · MISP Galaxy
Data as of 2026-11-15. CVE List through 2026-11-15 · EPSS of 2026-11-15 · CISA KEV checked 2026-11-15. Sources: MITRE ATT&CK (© The MITRE Corporation, reproduced and distributed with its permission), the MISP Galaxy (CC0), and CyberSIXT's own coverage.