alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS Palo Alto GlobalProtect Directory Traversal in Session Cookie (CVE-2024-3400)"; flow:established,to_server; http.cookie; content:"SESSID="; startswith; content:"|2e 2e 2f 2e 2e 2f|"; http.request_body; content:"gwHipReportCheck|3d|"; fast_pattern; http.method; content:"POST"; reference:url,labs.watchtowr.com/palo-alto-putting-the-protecc-in-globalprotect-cve-2024-3400/; reference:url,www.volexity.com/blog/2024/05/15/detecting-compromise-of-cve-2024-3400-on-palo-alto-networks-globalprotect-devices/; reference:cve,2024-3400; classtype:trojan-activity; sid:2065037; rev:1; metadata:affected_product Palo_Alto_Networks, attack_target Server, tls_state TLSDecrypt, created_at 2025_10_02, cve CVE_2024_3400, deployment Perimeter, deployment Internal, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_10_02, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)