ET EXPLOIT_KIT Possible PurpleFox EK Framework Payload

alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET EXPLOIT_KIT Possible PurpleFox EK Framework Payload";
    flow:established,to_client;
    http.stat_code;
    content:"200";
    http.cookie;
    content:"__cfduid=";
    http.content_type;
    content:"image/jpeg"; bsize:10;
    file.data;
    content:"|20 2e 20|$Env|3a|comSPEC["; depth:16; nocase; fast_pattern;
    content:"]-joIN|27 27|)( -JoiN(|20 27|"; nocase; within:30;
    classtype:exploit-kit;
    sid:2028976; rev:3;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_11_14, deployment Perimeter, deployment SSLDecrypt, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_21;
)