ET MALWARE ScreenConnect Installer Request via PowerShell

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
pcre:"/(?:screenconnect|connectwise)/i";
pcre:"/\x2e(?:msi|exe)/";
http.user_agent;
content:"WindowsPowerShell"; fast_pattern;
http.host;
content:!"screenconnect.com"; endswith;
target:src_ip;
Raw source ET MALWARE ScreenConnect Installer Request via PowerShell · 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 ScreenConnect Installer Request via PowerShell";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    pcre:"/(?:screenconnect|connectwise)/i";
    pcre:"/\x2e(?:msi|exe)/";
    http.user_agent;
    content:"WindowsPowerShell"; fast_pattern;
    http.host;
    content:!"screenconnect.com"; endswith;
    classtype:trojan-activity;
    sid:2068404; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_03_24, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Major, tag RMM, updated_at 2026_03_24;
    target:src_ip;
)

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