alert http any any -> $HOME_NET any (msg:"ET HUNTING Fortra GoAnywhere MFT Insecure Deserialization via License Servlet (CVE-2025-10035)"; flow:established,to_server; flowbits:isset,ET.GoAnywhere.CVE-2025-10035; http.uri; content:"/goanywhere/lic/accept/"; fast_pattern; http.request_body; content:"bundle|3d|"; startswith; http.method; content:"POST"; reference:url,labs.watchtowr.com/is-this-bad-this-feels-bad-goanywhere-cve-2025-10035/; reference:cve,2025-10035; classtype:web-application-attack; sid:2064922; rev:1; metadata:affected_product Fortra_GoAnywhere, attack_target Server, tls_state TLSDecrypt, created_at 2025_09_25, cve CVE_2025_10035, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence Medium, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_09_25, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)