alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT_KIT RIG EK Landing March 20 2015"; flow:established,from_server; file_data; content:"function iu7("; content:"ji2"; within:100; pcre:"/^\W/R"; content:"hu2"; pcre:"/^\W/R"; classtype:exploit-kit; sid:2020725; rev:2; metadata:created_at 2015_03_21, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)