ET MALWARE SystemBC Powershell bot registration

Query · suricata

flow:established,to_server;
dsize:100;
content:"|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 31|"; offset:0; depth:50;
Raw source ET MALWARE SystemBC Powershell bot registration · 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 MALWARE SystemBC Powershell bot registration";
    flow:established,to_server;
    dsize:100;
    content:"|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 31|"; offset:0; depth:50;
    reference:md5,d1fb59de13a2394622c84aca8d963071;
    reference:url,medium.com/walmartglobaltech/systembc-powershell-version-68c9aad0f85c;
    classtype:command-and-control;
    sid:2035399; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_03_07, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_03_07;
)

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