alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT EITest SocEng Inject Jan 15 2017 M2"; flow:established,from_server; file_data; content:"|69 6e 66 6f 6c|"; fast_pattern; content:"|77 69 6e 64 6f 77 2e 63 68 72 6f 6d 65|"; nocase; content:"<input"; nocase; pcre:"/^(?=[^>]*type\s*=\s*[\x22\x27]hidden[\x22\x27])(?=[^>]*name\s*=\s*[\x22\x27]infol[\x22\x27])[^>]*value\s*=\s*[\x22\x27][A-Za-z0-9+/]+[\x22\x27]/Rsi"; content:"<form"; nocase; pcre:"/^(?=[^>]+action\s*=\s*[\x22\x27]http\x3a\x2f)[^>]+method\s*=\s*[\x22\x27]post[\x22\x27]/Rsi"; classtype:social-engineering; sid:2023742; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Web_Browser_Plugins, attack_target Client_Endpoint, created_at 2017_01_17, deployment Perimeter, malware_family EITest, performance_impact Low, confidence High, signature_severity Major, updated_at 2020_08_20;)