New HollowGraph malware uses Microsoft Graph for stealthy C2 comms
Malicious Malware Uses Microsoft Graph to Conceal Stealthy Communication with Attackers A newly discovered malware component, dubbed HollowGraph, has been found using compromised Microsoft 365 mailboxes as a command-and-control channel to receive attacker commands and exfiltrate stolen data. This sophisticated tool is part of the Cavern command-and-control framework, which has been previously linked to an … Read more