ET INFO SAFIB Assistant Remote Administration Tool Keepalive

Query · suricata

flow:established,to_server;
dsize:92;
content:"|02 32 00 00 5c 00 00 00|"; startswith;
content:"|00 00 00 00 01 00 00 00 91 55 50 01|"; distance:48; fast_pattern;
content:"|00 00 00 00 00 00 00 00 00 00 00 00|"; endswith;
threshold:type limit,track by_src,seconds 180,count 1;
Raw source ET INFO SAFIB Assistant Remote Administration Tool Keepalive · 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 any (
    msg:"ET INFO SAFIB Assistant Remote Administration Tool Keepalive";
    flow:established,to_server;
    dsize:92;
    content:"|02 32 00 00 5c 00 00 00|"; startswith;
    content:"|00 00 00 00 01 00 00 00 91 55 50 01|"; distance:48; fast_pattern;
    content:"|00 00 00 00 00 00 00 00 00 00 00 00|"; endswith;
    threshold:type limit,track by_src,seconds 180,count 1;
    classtype:misc-activity;
    sid:2038601; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2022_08_23, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_08_23;
)

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