ET MALWARE ELF/crond CnC Request (GET)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/api/buffalo_"; startswith; fast_pattern;
content:"|2e|txt"; endswith;
http.user_agent;
content:"curl";
Raw source ET MALWARE ELF/crond CnC Request (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 ELF/crond CnC Request (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/api/buffalo_"; startswith; fast_pattern;
    content:"|2e|txt"; endswith;
    http.user_agent;
    content:"curl";
    reference:url,x.com/malwrhunterteam/status/1826882222323794335;
    reference:md5,d13254b450e9c45b86f0972eb3a10608;
    classtype:trojan-activity;
    sid:2055467; rev:1;
    metadata:affected_product Linux, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_08_23, deployment Perimeter, malware_family ELF_crond, confidence High, signature_severity Critical, tag c2, updated_at 2024_08_23, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;
)

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