ET INFO Inveigh Proxy Powershell Script Retrieval (Inbound)

Query · suricata

flow:established,to_client;
file.data;
content:"function Invoke-Inveigh"; fast_pattern;
content:".PARAMETER Challenge";
Raw source ET INFO Inveigh Proxy Powershell Script Retrieval (Inbound) · 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 http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET INFO Inveigh Proxy Powershell Script Retrieval (Inbound)";
    flow:established,to_client;
    file.data;
    content:"function Invoke-Inveigh"; fast_pattern;
    content:".PARAMETER Challenge";
    reference:url,github.com/Kevin-Robertson/Inveigh;
    classtype:bad-unknown;
    sid:2038707; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_09_01, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_09_01;
)

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