ET RETIRED Win32/TyphonReborn Telegram CnC Checkin

Query · suricata

flow:established,to_client;
http.response_line;
content:"HTTP/1.1 200 OK";
http.response_body;
content:"|7b 22|ok|22 3a|true|2c 22|result|22 3a 7b 22|message_id|22 3a|"; startswith;
content:"|22|is_bot|22 3a|true|2c 22|first_name|22 3a 22|Typhon|22 2c|"; distance:0;
content:"|22|username|22 3a 22|TyphonSyphonBot|22 7d 2c|"; distance:0;
content:"New TyphonReborn log"; distance:0; fast_pattern;
Raw source ET RETIRED Win32/TyphonReborn Telegram CnC Checkin · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert http $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET RETIRED Win32/TyphonReborn Telegram CnC Checkin";
    flow:established,to_client;
    http.response_line;
    content:"HTTP/1.1 200 OK";
    http.response_body;
    content:"|7b 22|ok|22 3a|true|2c 22|result|22 3a 7b 22|message_id|22 3a|"; startswith;
    content:"|22|is_bot|22 3a|true|2c 22|first_name|22 3a 22|Typhon|22 2c|"; distance:0;
    content:"|22|username|22 3a 22|TyphonSyphonBot|22 7d 2c|"; distance:0;
    content:"New TyphonReborn log"; distance:0; fast_pattern;
    reference:md5,d1d84c844681fe3c672a713c1a3bf52c;
    reference:url,unit42.paloaltonetworks.com/typhon-reborn-stealer/;
    classtype:trojan-activity;
    sid:2039785; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_11_15, deployment Perimeter, deployment SSLDecrypt, former_category MALWARE, malware_family Win32_TyphonReborn, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_09_23, reviewed_at 2024_09_23;
)

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.