OTX Threat: Inside FortiBleed: Reverse Engineering the CyberStrike Harvester Behind a Global FortiGate Credential Factory

FortiBleed is a large-scale credential compromise campaign targeting internet-facing Fortinet FortiGate firewalls and SSL VPN gateways globally. The operation employs a sophisticated credential pipeline utilizing credential stuffing, password spraying, configuration harvesting, offline cracking, and post-authentication capture processing. Reverse engineering of the CyberStrike Harvester v1.5 binar CVEs: CVE-2026-35616, CVE-2026-0257, CVE-2026-25089 Sectors: Government, Telecommunications, Financ