UNC4841
Also known as SLIME57
UNC4841 is a well-resourced threat actor that has utilized a wide range of malware and purpose-built tooling to enable their global espionage operations. They have been observed selectively deploying specific malware families at high priority targets, with SKIPJACK being the most widely deployed. UNC4841 primarily targeted government and technology organizations, but they have also been observed targeting other verticals.
CVEs in recent coverage
No CVEs named alongside this actor in the last 90 days.
Recent victims
No leak-site posts on record for this group.
Recent activity
No posts or advisories have named this actor recently.
References
- https://cloud.google.com/blog/topics/threat-intelligence/unc4841-post-barracuda-zero-day-remediation/
- https://cloud.google.com/blog/topics/threat-intelligence/barracuda-esg-exploited-globally/
- https://i.blackhat.com/Asia-24/Presentations/Asia-24-Chen-Chinese-APT.pdf
- https://www.youtube.com/watch?v=PSaix1C-UMI
- https://www.youtube.com/watch?v=4zaStuUdvrE
- https://sansorg.egnyte.com/dd/8ekLJCPHPj/
- https://www.cisa.gov/sites/default/files/2023-07/MAR-10454006.r3.v1.CLEAR_.pdf
- https://www.cisa.gov/sites/default/files/2023-07/MAR-10454006.r2.v1.CLEAR_.pdf
- https://www.cisa.gov/sites/default/files/2023-07/MAR-10454006.r1.v2.CLEAR_.pdf
- https://www.cisa.gov/sites/default/files/2023-08/MAR-10459736.r1.v1.CLEAR_.pdf
- https://www.cisa.gov/sites/default/files/2023-08/MAR-10454006.r4.v2.CLEAR_.pdf
- https://www.cisa.gov/sites/default/files/2023-09/MAR-10454006.r5.v1.CLEAR__0.pdf
From the MISP threat-actor galaxy, MITRE ATT&CK and RansomLook (CC BY 4.0). Activity is any post or advisory Watch Floor collected that names the actor or one of its aliases.