alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Malicious Fake JS Lib Inject"; flow:established,to_client; file.data; content:".min.php"; nocase; pcre:"/^(?P<q>[\x22\x27])\+(?P=q)\?(?P=q)\+(?P=q)/R"; content:"default_keyword="; within:2500; fast_pattern; content:"<"; within:2500; content:!"/script>"; within:8; pcre:"/^[\x22\x27+\s]*\/[\x22\x27+\s]*s[\x22\x27+\s]*c[\x22\x27+\s]*r[\x22\x27+\s]*i[\x22\x27+\s]*p[\x22\x27+\s]*t[\x22\x27+\s]*>/Rsi"; classtype:trojan-activity; sid:2025151; rev:3; metadata:affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2017_12_15, deployment Perimeter, performance_impact Low, signature_severity Major, tag Web_Client_Attacks, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_14;)