ET ADWARE_PUP Onestart AI Host Profile Checkin (POST)

Query · suricata

flow:established,to_server;
urilen:1;
http.method;
content:"POST";
http.uri;
content:"/";
http.host; bsize:15;
content:"log.onestart.ai";
http.request_body;
content:"|7b 22|action|22 3a 22|";
content:"|22 2c 22|background|5f|mode|22 3a 22|"; distance:0;
content:"|22 2c 22|check|5f|updates|5f|on|5f|startup|22 3a 22|enabled|22 2c 22|"; distance:0; fast_pattern;
Raw source ET ADWARE_PUP Onestart AI Host Profile Checkin (POST) · 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 ADWARE_PUP Onestart AI Host Profile Checkin (POST)";
    flow:established,to_server;
    urilen:1;
    http.method;
    content:"POST";
    http.uri;
    content:"/";
    http.host; bsize:15;
    content:"log.onestart.ai";
    http.request_body;
    content:"|7b 22|action|22 3a 22|";
    content:"|22 2c 22|background|5f|mode|22 3a 22|"; distance:0;
    content:"|22 2c 22|check|5f|updates|5f|on|5f|startup|22 3a 22|enabled|22 2c 22|"; distance:0; fast_pattern;
    reference:url,community.emergingthreats.net/t/sigs-onestartai-pua/2422;
    reference:md5,1d599092628613f06912ec455ca61f96;
    classtype:pup-activity;
    sid:2059955; rev:2;
    metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2025_02_07, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Major, tag Adware, updated_at 2025_06_02, mitre_tactic_id TA0040, mitre_tactic_name Impact, mitre_technique_id T1496, mitre_technique_name Resource_Hijacking;
)

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