StealC You Later: Proofpoint and IBM X-Force Support Operation Endgame Disruptions
Proofpoint, Wednesday, June 24th, 2026
Proofpoint and IBM X-Force aided Operation Endgame's takedown of the StealC information-stealer malware service.
Proofpoint and IBM X-Force collaborated with law enforcement in Operation Endgame to disrupt StealC, a malware-as-a-service information stealer.
The joint action targeted 66 domains and 296 servers associated with both Amadey and StealC, seizing over 25.6 million stolen credentials.
Researchers built a StealC emulator to track operations and discovered a vulnerability in the malware's C2 panel that law enforcement exploited during the disruption. The post details the threat research underpinning the takedown and its impact on the cybercrime ecosystem.