ET MALWARE SilentGrabber Exfil via Telegram (POST) M2

Query · suricata

flow:established,to_server;
http.request_body;
content:"|3c 2f|b|3e 20|got|20|a|20|new|20|victim|3a 20 3c|b|3e|a"; fast_pattern;
content:"|3c|b|3e|IP|20|Info|3c 2f|b|3e|";
content:"|3c|b|3e|Grabbed|20|Info|3c 2f|b|3e|";
target:src_ip;
Raw source ET MALWARE SilentGrabber Exfil via Telegram (POST) M2 · 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 SilentGrabber Exfil via Telegram (POST) M2";
    flow:established,to_server;
    http.request_body;
    content:"|3c 2f|b|3e 20|got|20|a|20|new|20|victim|3a 20 3c|b|3e|a"; fast_pattern;
    content:"|3c|b|3e|IP|20|Info|3c 2f|b|3e|";
    content:"|3c|b|3e|Grabbed|20|Info|3c 2f|b|3e|";
    reference:md5,2c6dbadcc4df0a0ee079fc7ba14d07f8;
    classtype:trojan-activity;
    sid:2064049; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2025_08_19, deployment Perimeter, deployment SSLDecrypt, malware_family SilentGrabber, confidence High, signature_severity Critical, tag c2, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2025_08_19, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol;
    target:src_ip;
)

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