ET MALWARE Win32/ArtraDownloader Checkin

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.header;
content:"Content-type|3a 20|application/x-www-form-urlencoded";
http.request_body;
content:"BCDEF=";
content:"&MNOPQ=";
content:"&GHIJ=";
content:"&UVWXYZ="; fast_pattern;
content:"&st=";
Raw source ET MALWARE Win32/ArtraDownloader Checkin · 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 Win32/ArtraDownloader Checkin";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.header;
    content:"Content-type|3a 20|application/x-www-form-urlencoded";
    http.request_body;
    content:"BCDEF=";
    content:"&MNOPQ=";
    content:"&GHIJ=";
    content:"&UVWXYZ="; fast_pattern;
    content:"&st=";
    reference:md5,7cc0b212d1b8ceb808c250495d83bae4;
    reference:url,unit42.paloaltonetworks.com/multiple-artradownloader-variants-used-by-bitter-to-target-pakistan;
    classtype:command-and-control;
    sid:2026740; rev:4;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2018_12_20, deployment Perimeter, malware_family Win32_ArtraDownloader, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_27;
)

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