alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT CottonCastle/Niteris EK Landing June 19 2015"; flow:established,from_server; file_data; content:"ScriptEngineMajorVersion"; nocase; content:"ScriptEngineMinorVersion"; nocase; content:"ScriptEngineBuildVersion"; nocase; content:"javafx_version"; nocase; content:"ip"; pcre:"/^\s*?=\s*?[\x22\x27]8\.8\.8\.8[\x22\x27]/Rsi"; content:"8.8.8.8"; fast_pattern; classtype:exploit-kit; sid:2021310; rev:4; metadata:created_at 2015_06_19, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_10_08;)