ET ADWARE_PUP FLV/Youtube Downloader Install Activity

Query · suricata

flow:established,to_server;
http.request_line;
content:"GET /images/downloader/pixel.gif?action=install&"; startswith;
content:"&lngid=";
content:"cid=";
content:"&kt=flvd"; fast_pattern;
http.header_names;
content:!"|0d 0a|Referer|0d 0a|";
Raw source ET ADWARE_PUP FLV/Youtube Downloader Install Activity · 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 ADWARE_PUP FLV/Youtube Downloader Install Activity";
    flow:established,to_server;
    http.request_line;
    content:"GET /images/downloader/pixel.gif?action=install&"; startswith;
    content:"&lngid=";
    content:"cid=";
    content:"&kt=flvd"; fast_pattern;
    http.header_names;
    content:!"|0d 0a|Referer|0d 0a|";
    reference:md5,3af4b637e16922fdceaff00d64e98f53;
    classtype:pup-activity;
    sid:2031082; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_10_22, deployment Perimeter, performance_impact Low, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_22;
)

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.