ET ADWARE_PUP Win32/YTDDownloader.F Activity

Query · suricata

flow:established,to_server;
http.request_line;
content:"GET /offers/offers.php?id="; startswith; fast_pattern;
content:" HTTP/1.0"; endswith;
http.user_agent; bsize:20;
content:"NSISDL/1.2 (Mozilla)";
Raw source ET ADWARE_PUP Win32/YTDDownloader.F 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 Win32/YTDDownloader.F Activity";
    flow:established,to_server;
    http.request_line;
    content:"GET /offers/offers.php?id="; startswith; fast_pattern;
    content:" HTTP/1.0"; endswith;
    http.user_agent; bsize:20;
    content:"NSISDL/1.2 (Mozilla)";
    reference:md5,a53b0c85d4e65e06c59e854b84ad7f17;
    classtype:pup-activity;
    sid:2029470; rev:1;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_02_14, deployment Perimeter, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_02_14;
)

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