Cyber Resilience

Threat actor · all actors

Ferocious KittenG0137 state

🇮🇷 IR

aka Ferocious Kitten

Last updated: 2026-08-20

0attributed CVEs
11ATT&CK techniques
0.0IDF score (tooling uniqueness)
0exclusive CVEs
years active

About this actor

Ferocious Kitten is an APT group that has been active against Persian-speaking individuals since 2015 and appears to be based in Iran. Although it has been active over a large timespan, the group has mostly operated under the radar until a lure document was uploaded to VirusTotal and was brought to public knowledge by researchers on Twitter. Subsequently, one of its implants was analyzed by a Chinese intelligence firm. Kaspersky then expanded some of the findings on the group and provided insights on additional variants. The malware dropped from the aforementioned document is dubbed MarkiRAT and is used to record keystrokes and clipboard content, provide file download and upload capabilities as well as the ability to execute arbitrary commands on the victims machine. Kaspersky were able to trace the implant back to at least 2015, along with variants intended to hijack the execution of the Telegram and Chrome applications as a persistence method. Interestingly, some of the TTPs used by this threat actor are reminiscent of other groups operating in the domain of dissident surveillance. For example, it used the same C2 domains across its implants for years, which was witnessed in the activity of Domestic Kitten. In the same vein, the Telegram execution hijacking technique observed in this campaign by Ferocious Kitten was also observed being used by Rampant Kitten, as covered by Check Point.

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

G0137

CrowdStrikenation-animal names

Ferocious Kitten

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 — 11 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
CA-76 / 1155%
CM-26 / 1155%
CM-66 / 1155%
SI-36 / 1155%
SI-46 / 1155%
AC-44 / 1136%
CM-74 / 1136%
IA-94 / 1136%
SC-444 / 1136%
SC-74 / 1136%
SI-104 / 1136%
SI-74 / 1136%
SI-84 / 1136%
SI-23 / 1127%
AC-22 / 1118%

Co-occurring actors

None.

Similar actors

Similar TTPs

Same nation-state