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Detects creation of the malicious persistent 'forticloud-sync' super-user account on FortiOS following an anomalous admin WebSocket session, consistent with post-exploitation of CVE-2024-55591/CVE-2025-24472.
Network signature for the specific WebSocket/admin-API request sequence used to exploit the FortiOS/FortiProxy authentication-bypass vulnerabilities CVE-2024-55591 and CVE-2025-24472, as leveraged by Gunra ransomware affiliates for initial access.