ET MALWARE Win32/Backdoor.Atharvan CnC Checkin

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.request_body;
content:"id="; startswith;
content:"&code="; distance:0;
content:"&cid=H^"; fast_pattern; distance:3;
content:"&time="; distance:12;
Raw source ET MALWARE Win32/Backdoor.Atharvan 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 Win32/Backdoor.Atharvan CnC Checkin";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.request_body;
    content:"id="; startswith;
    content:"&code="; distance:0;
    content:"&cid=H^"; fast_pattern; distance:3;
    content:"&time="; distance:12;
    reference:url,symantec-enterprise-blogs.security.com/blogs/threat-intelligence/clasiopa-materials-research;
    classtype:trojan-activity;
    sid:2044315; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_02_23, deployment Perimeter, malware_family Win32_Backdoor_Atharvan, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_02_23;
)

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