LockBit ransomware is exploiting windows defender to spread Cobalt Strike payload.
Windows Defender command-line tool is being abused by a threat actor associated with the LockBit ransomware-as-a-service (RaaS) operation.
Once initial access had been achieved, the threat actors performed a series of enumeration commands and attempted to run multiple post-exploitation tools, including Meterpreter, PowerShell Empire, and a new way to side-load Cobalt Strike.
This is the first-ever bug bounty for a RaaS program including an advance search feature to search for targeted files and folders.
In the incident analysis, the initial access was followed by downloading a Cobalt Strike payload from a remote server, which was subsequently decrypted and loaded using the Windows Defender utility.
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