ET MALWARE Win32/Inido!rts Checkin

Query · suricata

flow:established,to_server;
http.method;
content:"GET";
http.uri;
content:"/Client/ClicentMessage.ashx?rnd="; startswith; fast_pattern;
content:"&v="; distance:0;
content:"&mac="; distance:0;
content:"&LoginName="; distance:0;
http.user_agent;
content:"Mozilla|2f|3|2e|0|20 28|compatible|3b 20|Indy|20|Library|29|"; bsize:38;
threshold:type limit, track by_src, seconds 180, count 1;
Raw source ET MALWARE Win32/Inido!rts Checkin · 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 MALWARE Win32/Inido!rts Checkin";
    flow:established,to_server;
    http.method;
    content:"GET";
    http.uri;
    content:"/Client/ClicentMessage.ashx?rnd="; startswith; fast_pattern;
    content:"&v="; distance:0;
    content:"&mac="; distance:0;
    content:"&LoginName="; distance:0;
    http.user_agent;
    content:"Mozilla|2f|3|2e|0|20 28|compatible|3b 20|Indy|20|Library|29|"; bsize:38;
    threshold:type limit, track by_src, seconds 180, count 1;
    reference:md5,735e730c26f59d26fc5ff22107817de1;
    classtype:trojan-activity;
    sid:2044790; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2023_03_27, deployment Perimeter, malware_family Win32_Inido_rts, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_03_27, reviewed_at 2024_12_11;
)

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