ET MALWARE TyphonStealer Exfil via Telegram

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"|0a 0a f0 9f 91 a4 20|User|20|details|3a 0a|Date|3a|"; nocase; fast_pattern;
content:"|0a 0a f0 9f a5 b7 20|System|20|info|3a 0a|";
content:"Network|20|Details|3a|"; nocase;
content:"Location|20|Details|3a|"; nocase;
content:"Important|20|Details|3a|"; nocase;
http.host;
content:"api.telegram.org";
Raw source ET MALWARE TyphonStealer Exfil via Telegram · 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 TyphonStealer Exfil via Telegram";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"|0a 0a f0 9f 91 a4 20|User|20|details|3a 0a|Date|3a|"; nocase; fast_pattern;
    content:"|0a 0a f0 9f a5 b7 20|System|20|info|3a 0a|";
    content:"Network|20|Details|3a|"; nocase;
    content:"Location|20|Details|3a|"; nocase;
    content:"Important|20|Details|3a|"; nocase;
    http.host;
    content:"api.telegram.org";
    reference:url,twitter.com/suyog41/status/1647937033933914113;
    reference:md5,8581eae9949adfdce9a7bf6ae5ae0141;
    classtype:trojan-activity;
    sid:2044966; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_04_17, deployment Perimeter, deployment SSLDecrypt, malware_family TyphoonStealer, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_17;
)

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