alert http $EXTERNAL_NET any -> [$HOME_NET,$HTTP_SERVERS] any (msg:"ET EXPLOIT Attempted Unauthenticated Palo Alto Global Protect Administrator Password Change M1"; flow:established,to_server; urilen:25; http.method; content:"POST"; http.uri; content:"/global-protect/login.esp"; http.request_body; content:"prot|3d|https|25|3A|26|server|3d|"; startswith; content:"&inputStr=&action=getsoftware&user="; distance:0; fast_pattern; content:"&passwd="; distance:0; content:"&new-passwd="; distance:0; content:"&confirm-new-passwd="; distance:0; classtype:attempted-admin; sid:2060228; rev:1; metadata:affected_product Palo_Alto_Networks, attack_target Networking_Equipment, tls_state TLSDecrypt, created_at 2025_02_19, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Major, updated_at 2025_02_19, former_sid 2860361, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application;)