ET MALWARE Villain C2 Framework CnC Exfil (POST)


Query · suricata

flow:to_server,established;
http.method;
content:"POST";
http.user_agent;
content:"WindowsPowerShell/";
http.request_body;
content:"|0D 0A 0D 0A 20 20 20 20|Directory|3a 20|C|3a 5c|Users|5c|admin|5c|"; startswith; fast_pattern;
content:"|0d 0a|Mode|20 20|"; distance:0;
content:"|20 20 20|LastWriteTime|20 20 20 20|"; distance:0;
content:"| 20 20|Length|20|Name|20 20|"; distance:0;
http.header_names;
content:"Authorization";
Raw source ET MALWARE Villain C2 Framework CnC Exfil (POST) · 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 Villain C2 Framework CnC Exfil (POST)";
    flow:to_server,established;
    http.method;
    content:"POST";
    http.user_agent;
    content:"WindowsPowerShell/";
    http.request_body;
    content:"|0D 0A 0D 0A 20 20 20 20|Directory|3a 20|C|3a 5c|Users|5c|admin|5c|"; startswith; fast_pattern;
    content:"|0d 0a|Mode|20 20|"; distance:0;
    content:"|20 20 20|LastWriteTime|20 20 20 20|"; distance:0;
    content:"| 20 20|Length|20|Name|20 20|"; distance:0;
    http.header_names;
    content:"Authorization";
    reference:md5,c08cd421d6f47dcaa2c30395ddf057d8;
    classtype:trojan-activity;
    sid:2044260; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_02_21, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_02_21;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.