ET MALWARE Oilrig Stealer CnC Checkin

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Oilrig Stealer CnC Checkin";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:".aspx?version="; fast_pattern;
    pcre:"/^[0-9]+lu[0-9]+d[0-9]+$/Ri";
    http.header_names;
    content:!"User-Agent";
    content:!"Referer";
    reference:url,docs.google.com/document/u/1/d/e/2PACX-1vR2TWm68bLidO3e2X0wTCqs0609vo5RXB85f6VL_Zm79wtTK59xADKh6MG0G7hSBZi8cPOiQVWAIie0/pub;
    classtype:command-and-control;
    sid:2025182; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_01_04, deployment Perimeter, malware_family OilRig, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_24;
)