ET MALWARE Observed StealC_V2 Payload URL (GET)

Query · suricata

flow:established,to_server;
urilen:<16;
http.method;
content:"GET";
http.uri;
content:"/modelo/"; startswith; fast_pattern;
pcre:"/^[a-zA-Z0-9]{1,4}\x2eexe$/R";
http.header_names;
content:!"|0d 0a|referer|0d 0a|"; nocase;
http.host;
content:!"github.io"; endswith;
target:src_ip;
Raw source ET MALWARE Observed StealC_V2 Payload URL (GET) · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Observed StealC_V2 Payload URL (GET)";
    flow:established,to_server;
    urilen:<16;
    http.method;
    content:"GET";
    http.uri;
    content:"/modelo/"; startswith; fast_pattern;
    pcre:"/^[a-zA-Z0-9]{1,4}\x2eexe$/R";
    http.header_names;
    content:!"|0d 0a|referer|0d 0a|"; nocase;
    http.host;
    content:!"github.io"; endswith;
    classtype:trojan-activity;
    sid:2066308; 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_12_12, deployment Perimeter, deployment SSLDecrypt, malware_family Stealc, confidence Medium, signature_severity Unknown, updated_at 2025_12_12;
    target:src_ip;
)

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