ET MALWARE NordDragonScan CnC Checkin

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.user_agent; bsize:9;
content:"RTYUghjNM"; fast_pattern;
http.header_names;
content:"|0d 0a|Mac|0d 0a|";
target:src_ip;
Raw source ET MALWARE NordDragonScan CnC 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 NordDragonScan CnC Checkin";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.user_agent; bsize:9;
    content:"RTYUghjNM"; fast_pattern;
    http.header_names;
    content:"|0d 0a|Mac|0d 0a|";
    reference:url,www.fortinet.com/blog/threat-research/norddragonscan-quiet-data-harvester-on-windows;
    classtype:trojan-activity;
    sid:2063342; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_and_Server, tls_state TLSDecrypt, created_at 2025_07_08, deployment Perimeter, malware_family NordDragonScan, performance_impact Low, confidence High, signature_severity Major, updated_at 2025_07_08, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;
    target:src_ip;
)

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