ET EXPLOIT TeamViewer .tvs iFrame Observed (CVE-2020-13699)

Query · suricata

flow:established,from_server;
http.response_body;
content:"<iframe|20|";
content:"|20|src="; distance:0;
pcre:"/^[\x22\x27]t(?:eamviewer(\d+|api)|v(c(hat|ontrol)|filetransfer|joinv|present|s(endfile|q(customer|support))|v(ideocall|pn))\d)/R";
content:"|3a 20|--play"; distance:0; fast_pattern;
content:".tvs"; distance:0;
Raw source ET EXPLOIT TeamViewer .tvs iFrame Observed (CVE-2020-13699) · 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 $EXTERNAL_NET any -> $HOME_NET any (
    msg:"ET EXPLOIT TeamViewer .tvs iFrame Observed (CVE-2020-13699)";
    flow:established,from_server;
    http.response_body;
    content:"<iframe|20|";
    content:"|20|src="; distance:0;
    pcre:"/^[\x22\x27]t(?:eamviewer(\d+|api)|v(c(hat|ontrol)|filetransfer|joinv|present|s(endfile|q(customer|support))|v(ideocall|pn))\d)/R";
    content:"|3a 20|--play"; distance:0; fast_pattern;
    content:".tvs"; distance:0;
    reference:url,www.bleepingcomputer.com/news/security/teamviewer-fixes-bug-that-lets-attackers-access-your-pc/;
    classtype:attempted-admin;
    sid:2030668; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2020_08_10, cve CVE_2020_13699, deployment Perimeter, confidence High, signature_severity Major, tag Teamviewer, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_08_10;
)

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