ET MALWARE Darkgate Stealer CnC Checkin

Query · suricata

flow:established,to_server;
http.start;
content:"POST / HTTP/1.0|0d 0a|Host|3a 20|"; startswith; fast_pattern;
http.user_agent; bsize:33;
content:"Mozilla/4.0 (compatible|3b 20|Synapse)";
http.request_body;
content:"id="; startswith;
content:"&data="; distance:32; within:6;
content:"&act=";
isdataat:!5,relative;
target:src_ip;
Raw source ET MALWARE Darkgate Stealer CnC Checkin · 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 Darkgate Stealer CnC Checkin";
    flow:established,to_server;
    http.start;
    content:"POST / HTTP/1.0|0d 0a|Host|3a 20|"; startswith; fast_pattern;
    http.user_agent; bsize:33;
    content:"Mozilla/4.0 (compatible|3b 20|Synapse)";
    http.request_body;
    content:"id="; startswith;
    content:"&data="; distance:32; within:6;
    content:"&act=";
    isdataat:!5,relative;
    reference:md5,23a45a5658dc1989c54f5bd9139c007a;
    reference:url,www.aon.com/cyber-solutions/aon_cyber_labs/darkgate-keylogger-analysis-masterofnone/;
    reference:md5,793c0217717b0a37794f7c3adbeda577;
    classtype:command-and-control;
    sid:2048089; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_05_28, deployment Perimeter, malware_family DarkGate, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_09_14, reviewed_at 2023_09_14, former_sid 2842772;
    target:src_ip;
)

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