ET MALWARE MilkyBoy CnC Data Exfil

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.user_agent;
content:"python-requests/"; startswith;
http.request_body;
content:"Content-Disposition|3a 20|form-data|3b 20|name=|22|payload|22 3b 20|filename=|22|payload|22 0d 0a 0d 0a|PK"; fast_pattern;
http.header_names;
content:!"Referer";
Raw source ET MALWARE MilkyBoy CnC Data Exfil · Suricata
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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 MilkyBoy CnC Data Exfil";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.user_agent;
    content:"python-requests/"; startswith;
    http.request_body;
    content:"Content-Disposition|3a 20|form-data|3b 20|name=|22|payload|22 3b 20|filename=|22|payload|22 0d 0a 0d 0a|PK"; fast_pattern;
    http.header_names;
    content:!"Referer";
    reference:md5,a2f1df729688e1796aa11c426d197aeb;
    classtype:command-and-control;
    sid:2029294; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_01_17, deployment Perimeter, malware_family MilkyBoy, confidence High, signature_severity Major, updated_at 2020_01_17;
)

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