ET MALWARE [PTsecurity] Ursnif Encoded Payload Inbound

Query · suricata

flow:established,to_client;
http.stat_code;
content:"200";
file_data;
content:"|3d fa 61 3c 79 ee de ea 18 90 08 95 55 44 8d 41|"; depth:16; fast_pattern;
Raw source ET MALWARE [PTsecurity] Ursnif Encoded Payload Inbound · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE [PTsecurity] Ursnif Encoded Payload Inbound";
    flow:established,to_client;
    http.stat_code;
    content:"200";
    file_data;
    content:"|3d fa 61 3c 79 ee de ea 18 90 08 95 55 44 8d 41|"; depth:16; fast_pattern;
    reference:url,github.com/ptresearch/AttackDetection;
    classtype:trojan-activity;
    sid:2024837; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2017_10_12, deployment Perimeter, malware_family ursnif, performance_impact Low, confidence High, signature_severity Major, updated_at 2020_04_15;
)

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