ET MALWARE SideCopy APT Related Backdoor Victim Response (infoback)

Query · suricata

flow:established,to_server;
content:"infoback|3b|"; startswith; fast_pattern;
content:"|7c|"; distance:1; within:1;
content:"|7c|Windows"; distance:0;
Raw source ET MALWARE SideCopy APT Related Backdoor Victim Response (infoback) · 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 tcp-pkt $HOME_NET any -> $EXTERNAL_NET 1024: (
    msg:"ET MALWARE SideCopy APT Related Backdoor Victim Response (infoback)";
    flow:established,to_server;
    content:"infoback|3b|"; startswith; fast_pattern;
    content:"|7c|"; distance:1; within:1;
    content:"|7c|Windows"; distance:0;
    reference:url,twitter.com/malwareforme/status/1636005291849396224;
    classtype:trojan-activity;
    sid:2044627; rev:1;
    metadata:created_at 2023_03_15, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_03_15;
)

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