ET MALWARE Observed StealC Payload Request (GET)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri; bsize:12;
content:"/Clipper.exe"; fast_pattern;
http.header_names;
content:!"|0d 0a|user-agent|0d 0a|"; nocase;
content:!"|0d 0a|referer|0d 0a|"; nocase;
target:dest_ip;
Raw source ET MALWARE Observed StealC Payload Request (GET) · Suricata
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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 Observed StealC Payload Request (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri; bsize:12;
    content:"/Clipper.exe"; fast_pattern;
    http.header_names;
    content:!"|0d 0a|user-agent|0d 0a|"; nocase;
    content:!"|0d 0a|referer|0d 0a|"; nocase;
    reference:md5,f20fae792ff01acd0cfb26a3d6cfc4be;
    classtype:trojan-activity;
    sid:2067644; rev:1;
    metadata:attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_02_12, deployment Perimeter, deployment SSLDecrypt, malware_family Stealc, confidence Medium, signature_severity Major, updated_at 2026_02_12;
    target:dest_ip;
)

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