ET ADWARE_PUP Win32/OfferCore Checkin M1

Query · suricata

flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:"/o";
http.user_agent;
content:"Mozilla/4.0|20 28|compatible|3b 20|Win32|3b 20|WinHttp.WinHttpRequest";
http.header_names;
content:!"|0d 0a|Referer|0d 0a|";
http.request_body;
content:"|7b 22|prv|22 3a 20 22|"; fast_pattern; startswith;
target:src_ip;
Raw source ET ADWARE_PUP Win32/OfferCore Checkin 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 ADWARE_PUP Win32/OfferCore Checkin M1";
    flow:established,to_server;
    http.method;
    content:"POST";
    http.uri;
    content:"/o";
    http.user_agent;
    content:"Mozilla/4.0|20 28|compatible|3b 20|Win32|3b 20|WinHttp.WinHttpRequest";
    http.header_names;
    content:!"|0d 0a|Referer|0d 0a|";
    http.request_body;
    content:"|7b 22|prv|22 3a 20 22|"; fast_pattern; startswith;
    reference:md5,60ba45cff3dbaaed74d7d63886c8957f;
    classtype:trojan-activity;
    sid:2053280; rev:1;
    metadata:attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_06_06, deployment Perimeter, deployment SSLDecrypt, malware_family Offercore, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_06_06;
    target:src_ip;
)

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