ET HUNTING PowerShell Command Prompt Outbound On High Port

Query · suricata

flow:established,to_server;
content:"PS|20|C|3a 5c|"; fast_pattern;
threshold:type limit, seconds 300, count 1, track by_src;
Raw source ET HUNTING PowerShell Command Prompt Outbound On High Port · 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 HUNTING PowerShell Command Prompt Outbound On High Port";
    flow:established,to_server;
    content:"PS|20|C|3a 5c|"; fast_pattern;
    threshold:type limit, seconds 300, count 1, track by_src;
    reference:md5,e0a0e407d425a31b13563bfd09132754;
    classtype:misc-activity;
    sid:2044771; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_03_27, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_03_27;
)

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