ET HUNTING HTTP POST Request XOR Key d0

Query · suricata

flow:established,to_server;
content:"|80 9f 83 84 f0 ff|"; startswith; fast_pattern;
content:"|f0 98 84 84 80 ff|"; distance:0;
Raw source ET HUNTING HTTP POST Request XOR Key d0 · 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 $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET HUNTING HTTP POST Request XOR Key d0";
    flow:established,to_server;
    content:"|80 9f 83 84 f0 ff|"; startswith; fast_pattern;
    content:"|f0 98 84 84 80 ff|"; distance:0;
    classtype:misc-activity;
    sid:2038426; rev:2;
    metadata:attack_target Client_and_Server, created_at 2022_08_09, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_08_10, mitre_tactic_id TA0005, mitre_tactic_name Defense_Evasion, mitre_technique_id T1027, mitre_technique_name Obfuscated_Files_or_Information;
)

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