ET MALWARE MSIL/SkidRat CnC Checkin M2

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/applyingpoliciesrules"; fast_pattern; endswith;
http.user_agent;
content:"Firef0x";
http.header_names;
content:!"Referer";
Raw source ET MALWARE MSIL/SkidRat CnC Checkin M2 · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE MSIL/SkidRat CnC Checkin M2";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/applyingpoliciesrules"; fast_pattern; endswith;
    http.user_agent;
    content:"Firef0x";
    http.header_names;
    content:!"Referer";
    reference:url,www.dodgethissecurity.com/2019/02/28/reverse-engineering-an-unknown-rat-lets-call-it-skidrat-1-0/;
    classtype:command-and-control;
    sid:2027061; rev:4;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_03_06, deployment Perimeter, malware_family SkidRat, performance_impact Low, confidence High, signature_severity Major, tag RAT, updated_at 2020_09_16;
)

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