ET MALWARE Win32/Napolar.A Getting URL

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.user_agent; bsize:108;
content:"Mozilla/5.0 (Windows NT 6.1|3b| WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/28.0.1500.71 Safari/537.36"; fast_pattern;
http.header_names;
content:!"|0d 0a|Referer|0d 0a|";
content:!"|0d 0a|Accept|0d 0a|";
content:"|0d 0a|User-Agent|0d 0a|Host|0d 0a|"; startswith;
Raw source ET MALWARE Win32/Napolar.A Getting URL · 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/Napolar.A Getting URL";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.user_agent; bsize:108;
    content:"Mozilla/5.0 (Windows NT 6.1|3b| WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/28.0.1500.71 Safari/537.36"; fast_pattern;
    http.header_names;
    content:!"|0d 0a|Referer|0d 0a|";
    content:!"|0d 0a|Accept|0d 0a|";
    content:"|0d 0a|User-Agent|0d 0a|Host|0d 0a|"; startswith;
    reference:md5,9a8cee88d7440f25be8404b71cb584de;
    reference:md5,b70f8d0afa82c222f55f7a18d2ad0b81;
    classtype:trojan-activity;
    sid:2017362; rev:4;
    metadata:created_at 2013_08_21, malware_family Win32_Napolar_A, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_12;
)

Detection rules belong to the projects that publish them and remain under their own licenses. This site indexes and links to them; it claims no rights in them.