ET MALWARE Observed StealC_V2 Payload Request (GET)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"_INSTALL.exe"; endswith; fast_pattern;
pcre:"/_(?:\d{1,4}\x2e?){3,4}_INSTALL\x2eexe$/";
target:src_ip;
Raw source ET MALWARE Observed StealC_V2 Payload Request (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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE Observed StealC_V2 Payload Request (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"_INSTALL.exe"; endswith; fast_pattern;
    pcre:"/_(?:\d{1,4}\x2e?){3,4}_INSTALL\x2eexe$/";
    classtype:trojan-activity;
    sid:2066264; 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_10, deployment Perimeter, deployment SSLDecrypt, malware_family Stealc, confidence Medium, signature_severity Major, updated_at 2025_12_11, former_sid 2865329;
    target:src_ip;
)

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