ET MALWARE Horabot CnC Host Details Exfil

Query · suricata

flow:established,to_server;
urilen:<14;
http.method;
content:"POST";
http.uri;
content:"/index.php"; endswith;
pcre:"/^\x2f[a-zA-Z0-9]{2,3}\x2findex\x2ephp$/";
http.header;
content:"|0d 0a|Expect|3a 20|100-continue|0d 0a|";
http.request_body; bsize:<120;
content:"AT="; startswith;
content:"-Bit|20|CPU|20 20 20|"; endswith; fast_pattern;
Raw source ET MALWARE Horabot CnC Host Details Exfil · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Horabot CnC Host Details Exfil";
    flow:established,to_server;
    urilen:<14;
    http.method;
    content:"POST";
    http.uri;
    content:"/index.php"; endswith;
    pcre:"/^\x2f[a-zA-Z0-9]{2,3}\x2findex\x2ephp$/";
    http.header;
    content:"|0d 0a|Expect|3a 20|100-continue|0d 0a|";
    http.request_body; bsize:<120;
    content:"AT="; startswith;
    content:"-Bit|20|CPU|20 20 20|"; endswith; fast_pattern;
    reference:md5,1484c908cc1819798beed27c9531f24a;
    reference:url,twitter.com/pollo290987/status/1790815864247214389;
    classtype:trojan-activity;
    sid:2052638; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_05_16, deployment Perimeter, malware_family Horabot, confidence High, signature_severity Critical, updated_at 2024_05_16, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;
)

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.