ET MALWARE LNK/Konni APT CnC Checkin (GET)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".php?vw="; fast_pattern;
content:"&nv="; distance:3; within:4;
pcre:"/(?:\x2ephp\x3fvw\x3d(?:[a-z0-9]{3})\x26(?:[a-z]{2})\x3d(?:[a-z0-9]{6}))$/";
http.user_agent;
content:"WindowsPowerShell/";
Raw source ET MALWARE LNK/Konni APT CnC Checkin (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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE LNK/Konni APT CnC Checkin (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".php?vw="; fast_pattern;
    content:"&nv="; distance:3; within:4;
    pcre:"/(?:\x2ephp\x3fvw\x3d(?:[a-z0-9]{3})\x26(?:[a-z]{2})\x3d(?:[a-z0-9]{6}))$/";
    http.user_agent;
    content:"WindowsPowerShell/";
    reference:md5,6d6433c328f6cdce4a80efce3a29ea3e;
    reference:url,twitter.com/fr0s7_/status/1697506531724419277;
    classtype:trojan-activity;
    sid:2047883; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_09_01, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Critical, tag Konni, tag c2, updated_at 2023_09_01, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;
)

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