ET MALWARE Win32/Steallerium Stealer Data Exfil via Telegram (POST)

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/bot"; startswith;
content:"|2f|sendDocument|3f|chat|5f|id";
content:"&caption=|f0 9f 94 94|New|20|Log|20|From|3a 20|"; fast_pattern;
content:"|f0 9f 94 90|Password|3a 20|";
http.host;
content:"api.telegram.org"; bsize:16;
Raw source ET MALWARE Win32/Steallerium Stealer Data Exfil via Telegram (POST) · 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 Win32/Steallerium Stealer Data Exfil via Telegram (POST)";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/bot"; startswith;
    content:"|2f|sendDocument|3f|chat|5f|id";
    content:"&caption=|f0 9f 94 94|New|20|Log|20|From|3a 20|"; fast_pattern;
    content:"|f0 9f 94 90|Password|3a 20|";
    http.host;
    content:"api.telegram.org"; bsize:16;
    reference:url,twitter.com/suyog41/status/1696071374178222119;
    classtype:trojan-activity;
    sid:2047813; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_08_29, deployment Perimeter, deployment SSLDecrypt, malware_family Win32_Steallerium, confidence High, signature_severity Critical, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_08_29;
)

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