ET MALWARE Andariel Backdoor Actvity (Response)

Query · suricata

flow:established,to_client;
content:"HTTP|20|1.1|20|200|20|OK|20|SSL2.1"; fast_pattern; startswith;
Raw source ET MALWARE Andariel Backdoor Actvity (Response) · 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 $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE Andariel Backdoor Actvity (Response)";
    flow:established,to_client;
    content:"HTTP|20|1.1|20|200|20|OK|20|SSL2.1"; fast_pattern; startswith;
    reference:url,securelist.com/andariel-evolves-to-target-south-korea-with-ransomware/102811/;
    reference:md5,569246a3325effa11cb8ff362428ab2c;
    classtype:command-and-control;
    sid:2033147; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2021_06_16, deployment Perimeter, malware_family Lazarus, malware_family Andariel, performance_impact Low, confidence High, signature_severity Major, tag Backdoor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_06_16;
)

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