ET MALWARE Rust HackTool CnC Activity (Inbound)

Query · suricata

flow:established,to_client;
dsize:<60;
content:"|01 02 04 02 05 04|"; startswith;
content:"|00 00|Welcome|20 3a 29|"; endswith; fast_pattern;
Raw source ET MALWARE Rust HackTool CnC Activity (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 tcp-pkt $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET MALWARE Rust HackTool CnC Activity (Inbound)";
    flow:established,to_client;
    dsize:<60;
    content:"|01 02 04 02 05 04|"; startswith;
    content:"|00 00|Welcome|20 3a 29|"; endswith; fast_pattern;
    reference:url,twitter.com/Gi7w0rm/status/1767161955733696771;
    reference:md5,08d0d02dde4e20b9d48c782f48de64ab;
    classtype:trojan-activity;
    sid:2051642; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_03_13, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_13;
)

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