ET MALWARE Win32/Malgent!MSR User-Agent

Query · suricata

flow:established,to_server;
http.user_agent;
content:"Not a Virus Download A"; bsize:22; fast_pattern;
http.header_names;
content:!"Referer";
Raw source ET MALWARE Win32/Malgent!MSR User-Agent · 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 Win32/Malgent!MSR User-Agent";
    flow:established,to_server;
    http.user_agent;
    content:"Not a Virus Download A"; bsize:22; fast_pattern;
    http.header_names;
    content:!"Referer";
    reference:md5,4c1e57a0388a703307319d17ae5e9039;
    classtype:trojan-activity;
    sid:2033747; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2021_08_19, deployment Perimeter, malware_family Win32_Malgent_MSR, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_08_19;
)

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