ET MALWARE Win32/Knitting Industry Co. CnC Activity (GET)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/|3f|rs=user|7c|"; startswith; fast_pattern;
pcre:"/\x7c(?:[0-9]{2})\x3a(?:[0-9]{2})\x7c(?:[0-9]{1,3})$/R";
http.header_names;
content:!"|0d 0a|Referer|0d 0a|"; nocase;
Raw source ET MALWARE Win32/Knitting Industry Co. CnC Activity (GET) · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"ET MALWARE Win32/Knitting Industry Co. CnC Activity (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/|3f|rs=user|7c|"; startswith; fast_pattern;
    pcre:"/\x7c(?:[0-9]{2})\x3a(?:[0-9]{2})\x7c(?:[0-9]{1,3})$/R";
    http.header_names;
    content:!"|0d 0a|Referer|0d 0a|"; nocase;
    reference:url,x.com/malwrhunterteam/status/1837606124117196826;
    reference:md5,78e6fe030031e0b319121f4af546c743;
    classtype:command-and-control;
    sid:2056491; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_10_04, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_10_04;
)

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