alert http any any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET EXPLOIT ManageEngine Unauthenticated RCE Attempt M12 (CVE-2022-47966)"; flow:established,to_server; http.method; content:"POST"; http.request_body; content:"SAMLResponse="; startswith; fast_pattern; nocase; base64_decode:offset 0, relative; base64_data; content:"getEngineByName"; nocase; content:"nashorn"; nocase; reference:cve,2022-47966; classtype:attempted-admin; sid:2045303; rev:1; metadata:attack_target Server, created_at 2023_05_02, cve CVE_2022_47966, deployment Perimeter, deployment Internal, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag ManageEngine, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_05_02; target:dest_ip;)