OTX Threat: PEERSTITCH, a Stealthy FortiGate Implant

A sophisticated multi-stage network intrusion against a telecommunications organization in September 2024 exploited CVE-2024-47575 on a FortiManager appliance, exfiltrating configurations and cryptographic material for over 500 managed FortiGate firewalls. Attackers then exploited CVE-2025-61624 to deploy PEERSTITCH, a novel memory-resident ARM64 malware that leaves no disk artifacts or network tr CVEs: CVE-2024-47575, CVE-2024-26009, CVE-2025-59718, CVE-2025-59719, CVE-2025-61624 Sectors: Telec