alert http any any -> $HOME_NET any (msg:"ET WEB_SPECIFIC_APPS ICTBroadcast Command Injection (CVE-2025-2611)"; flow:established,to_server; http.cookie; content:"BROADCAST|3d|"; pcre:"/^[^\x3b]*?(?:(?:\x3b|%3[Bb])|(?:\x0a|%0[Aa])|(?:\x60|%60)|(?:\x7c|%7[Cc])|(?:\x24|%24))+/R"; reference:url,www.vulncheck.com/blog/ictbroadcast-kev; reference:cve,2025-2611; classtype:web-application-attack; sid:2065259; rev:1; metadata:attack_target Server, tls_state TLSDecrypt, created_at 2025_10_21, cve CVE_2025_2611, deployment Perimeter, deployment Internal, deployment SSLDecrypt, confidence High, signature_severity Major, tag Exploit, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_10_21, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)