ET MALWARE Cobalt Strike Malleable C2 Request (Stackoverflow Profile)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/questions/32251816/c-sharp-directives-compilation-error"; endswith; fast_pattern;
http.header_names;
content:!"Referer";
content:"Cookie";
http.cookie;
content:"prov="; startswith;
content:"_ga=GA1.2.9924|3b|_gat=1|3b|__qca=P0-214459"; endswith;
Raw source ET MALWARE Cobalt Strike Malleable C2 Request (Stackoverflow 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 Request (Stackoverflow Profile)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/questions/32251816/c-sharp-directives-compilation-error"; endswith; fast_pattern;
    http.header_names;
    content:!"Referer";
    content:"Cookie";
    http.cookie;
    content:"prov="; startswith;
    content:"_ga=GA1.2.9924|3b|_gat=1|3b|__qca=P0-214459"; endswith;
    reference:url,github.com/xx0hcd/Malleable-C2-Profiles;
    classtype:command-and-control;
    sid:2029381; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_02_06, deployment Perimeter, malware_family Cobalt_Strike, confidence Medium, signature_severity Major, updated_at 2020_02_06, reviewed_at 2024_02_29, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1001, mitre_technique_name Data_Obfuscation;
)

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