ET MALWARE MSIL/Injector.VVP Downloader Activity M1

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:".exe"; endswith;
pcre:"/^\/wp\x2dcontent\/[a-z]{3}\/[0-9]{16}\.exe$/U";
http.user_agent;
content:"Mozilla/5.0|20 28|Windows NT|3b 20|Windows NT 6.1|3b 20|en-US|29 20|WindowsPowerShell/5.1.14409.1005"; fast_pattern;
http.header_names;
content:!"Referer";
http.connection;
content:"Keep-Alive";
Raw source ET MALWARE MSIL/Injector.VVP Downloader Activity M1 · 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 -> $EXTERNAL_NET any (
    msg:"ET MALWARE MSIL/Injector.VVP Downloader Activity M1";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:".exe"; endswith;
    pcre:"/^\/wp\x2dcontent\/[a-z]{3}\/[0-9]{16}\.exe$/U";
    http.user_agent;
    content:"Mozilla/5.0|20 28|Windows NT|3b 20|Windows NT 6.1|3b 20|en-US|29 20|WindowsPowerShell/5.1.14409.1005"; fast_pattern;
    http.header_names;
    content:!"Referer";
    http.connection;
    content:"Keep-Alive";
    reference:md5,009934cd29110745347705ec4f877b6d;
    classtype:trojan-activity;
    sid:2034949; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_01_19, deployment Perimeter, malware_family MSIL_Injector_VVP, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_01_19, reviewed_at 2024_06_26;
)

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