#graphapiabuse — Public Fediverse posts

HOLLOWGRAPH Malware Turns Microsoft 365 Calendars Into a Covert Spy Channel

Group-IB has uncovered HOLLOWGRAPH, a stealthy malware component that hides its command-and-control traffic inside Microsoft 365 calendar invites dated decades in the future. The tool shows technical overlap with an Iran-nexus backdoor framework and appears to be running a narrow espionage campaign against Israeli organizations.

https://securebulletin.com/hollowgraph-malware-turns-microsoft-365-calendars-into-a-covert-spy-channel/