ET MALWARE Cobalt Strike Malleable C2 (Google Drive Profile)

Query · suricata

flow:established,to_server;
urilen:14;
http.method;
content:"GET";
http.uri;
content:"/viewerng/meta"; fast_pattern;
http.cookie;
content:"SID="; startswith;
http.accept_enc; bsize:13;
content:"gzip|2c 20|deflate";
http.accept;
content:"text|2f|html|2c|application|2f|xml|3b 2a 2f 2a 3b|";
Raw source ET MALWARE Cobalt Strike Malleable C2 (Google Drive Profile) · 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 Cobalt Strike Malleable C2 (Google Drive Profile)";
    flow:established,to_server;
    urilen:14;
    http.method;
    content:"GET";
    http.uri;
    content:"/viewerng/meta"; fast_pattern;
    http.cookie;
    content:"SID="; startswith;
    http.accept_enc; bsize:13;
    content:"gzip|2c 20|deflate";
    http.accept;
    content:"text|2f|html|2c|application|2f|xml|3b 2a 2f 2a 3b|";
    reference:url,github.com/rsmudge/Malleable-C2-Profiles/blob/master/normal/googledrive_getonly.profile;
    classtype:trojan-activity;
    sid:2055358; 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_08_20, deployment Perimeter, deployment SSLDecrypt, malware_family Cobalt_Strike, confidence High, signature_severity Critical, updated_at 2024_08_20, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1001, mitre_technique_name Data_Obfuscation;
)

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.