alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT Terror EK Payload RC4 Key M1 Mar 14 2017"; flow:established,from_server; http.stat_code; content:"200"; file.data; content:"uylzJB3mWrFjellI9iDFGQjO"; fast_pattern; content:"("; pcre:"/^\s*[\x22\x27]\s*http[^\x22\x27]+\.php\s*[\x22\x27]\s*\x2c\s*[\x22\x27]\s*uylzJB3mWrFjellI9iDFGQjO/Rs"; classtype:exploit-kit; sid:2024055; rev:4; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_03_14, deployment Perimeter, malware_family terror_EK, performance_impact Moderate, confidence High, signature_severity Major, updated_at 2020_10_08;)