Cyber Resilience

Threat actor · all actors

CleaverG0003 state

🇮🇷 IR

aka Cleaver, Threat Group 2889, TG-2889, Operation Cleaver, Op Cleaver, Tarh Andishan, Alibaba, Cobalt Gypsy, G0003

Last updated: 2026-08-20

0attributed CVEs
10ATT&CK techniques
0.0IDF score (tooling uniqueness)
0exclusive CVEs
—years active

About this actor

[Cleaver](https://attack.mitre.org/groups/G0003) is a threat group that has been attributed to Iranian actors and is responsible for activity tracked as Operation Cleaver. (Citation: Cylance Cleaver) Strong circumstantial evidence suggests Cleaver is linked to Threat Group 2889 (TG-2889). (Citation: Dell Threat Group 2889)

Source: MITRE ATT&CK

Names & naming systems

Each vendor coins its own name for the same actor. Where a name follows a known scheme we attribute it; the rest are listed honestly as unclassified.

MITRE ATT&CKG-number catalogue id

G0003

Secureworkscolour-metal names

Cobalt Gypsy

Unclassifiedno scheme matched

CleaverThreat Group 2889TG-2889Operation CleaverOp CleaverTarh AndishanAlibaba

How we know this

Data origin
MITRE ATT&CK Imported from the MITRE ATT&CK STIX bundle as an intrusion-set object.
Techniques
MITRE ATT&CK STIX mappings — 10 ATT&CK techniques on file.
Named victims
None on file.

See how actor data is built for the full pipeline.

Activity timeline

No activity events recorded.

Profile

CVERiskCVSSEPSSPublishedProducts
No attributed CVEs.

Mitigating controls (NIST 800-53)

ControlTechniques coveredCoverage
AC-34 / 1040%
AC-44 / 1040%
CA-74 / 1040%
CM-24 / 1040%
CM-64 / 1040%
CM-74 / 1040%
SI-34 / 1040%
SI-44 / 1040%
AC-163 / 1030%
SI-123 / 1030%
SI-73 / 1030%
AC-172 / 1020%
AC-182 / 1020%
AC-192 / 1020%
AC-22 / 1020%

Co-occurring actors

None.

Similar actors

Similar TTPs

Same nation-state

Same category