ET MALWARE Trojan:Win32/Sabsik.FL.B!ml CnC Activity

Query · suricata

flow:established,to_server;
stream_size:server,<,5;
content:"|0c 22 38 4e 5a 7b 2d 43 00 00 00 00 00 00 00 00|"; startswith; fast_pattern;
content:"//"; distance:0;
Raw source ET MALWARE Trojan:Win32/Sabsik.FL.B!ml CnC Activity · Suricata
Esc
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 MALWARE Trojan:Win32/Sabsik.FL.B!ml CnC Activity";
    flow:established,to_server;
    stream_size:server,<,5;
    content:"|0c 22 38 4e 5a 7b 2d 43 00 00 00 00 00 00 00 00|"; startswith; fast_pattern;
    content:"//"; distance:0;
    reference:md5,956e62df6ea59dfc9a459ea85d7bb2eb;
    classtype:command-and-control;
    sid:2034229; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_10_19, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_10_19;
)

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