ET INFO Packed Executable Download

Query · suricata

flow:established,to_client;
content:"|0d 0a 0d 0a|MZ";
isdataat:100,relative;
content:"This program "; distance:0;
content:"PE|00 00|"; distance:0;
content:!"data"; within:400;
content:!"text"; within:400;
content:!"rsrc"; within:400;
Raw source ET INFO Packed Executable Download · 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 Packed Executable Download";
    flow:established,to_client;
    content:"|0d 0a 0d 0a|MZ";
    isdataat:100,relative;
    content:"This program "; distance:0;
    content:"PE|00 00|"; distance:0;
    content:!"data"; within:400;
    content:!"text"; within:400;
    content:!"rsrc"; within:400;
    classtype:misc-activity;
    sid:2014819; rev:5;
    metadata:created_at 2012_05_30, performance_impact Moderate, confidence Medium, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_08;
)

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