ET MALWARE Win32/Powershell Loader Related Activity (GET)

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/getLicenseInfo.php?requirements=time&checkMethod="; startswith; fast_pattern;
http.user_agent;
content:"powershell/"; nocase;
http.header_names;
content:!"Referer|0d 0a|";
target:src_ip;
Raw source ET MALWARE Win32/Powershell Loader Related Activity (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 Win32/Powershell Loader Related Activity (GET)";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/getLicenseInfo.php?requirements=time&checkMethod="; startswith; fast_pattern;
    http.user_agent;
    content:"powershell/"; nocase;
    http.header_names;
    content:!"Referer|0d 0a|";
    reference:md5,b1fd11164cec63f26a8b08ca2ab81b84;
    reference:url,www.trendmicro.com/en_us/research/23/k/attack-signals-possible-return-of-genesis-market.html;
    classtype:trojan-activity;
    sid:2051981; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, affected_product Windows_11, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_04_10, deployment Perimeter, malware_family Win32_Powershell, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_10;
    target:src_ip;
)

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