ET MALWARE HTTPCore CnC Tasking File

Query · suricata

flow:established,to_client;
http.stat_code;
content:"200";
file_data;
content:"|89 50 4e 57 0d 0a 1a 0a 3c 3c 3c 3c|"; startswith; fast_pattern;
Raw source ET MALWARE HTTPCore CnC Tasking File · 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 HTTPCore CnC Tasking File";
    flow:established,to_client;
    http.stat_code;
    content:"200";
    file_data;
    content:"|89 50 4e 57 0d 0a 1a 0a 3c 3c 3c 3c|"; startswith; fast_pattern;
    reference:url,www.cyber.gov.au/sites/default/files/2020-06/ACSC-Advisory-2020-008-Copy-Paste-Compromises.pdf;
    classtype:command-and-control;
    sid:2030365; rev:2;
    metadata:attack_target Client_Endpoint, created_at 2020_06_19, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_06_19;
)

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