Operation Red Signature
The threat actors compromised the update server of a remote support solutions provider to deliver a remote access tool called 9002 RAT to their targets of interest through the update process. They carried this out by first stealing the company’s certificate then using it to sign the malware. They also configured the update server to only deliver malicious files if the client is located in the range of IP addresses of their target organisations.
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://decoded.avast.io/threatintel/avast-finds-backdoor-on-us-government-commission-network/?utm_source=rss&utm_medium=rss&utm_campaign=avast-finds-backdoor-on-us-government-commission-network
- https://www.trendmicro.com/en_my/research/18/h/supply-chain-attack-operation-red-signature-targets-south-korean-organizations.html
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.