ET INFO RustDesk Relay Domain in DNS Lookup

Query · suricata

dns.query;
content:"rs-"; startswith; fast_pattern;
pcre:"/[a-z]{2}/Ri"; dotprefix;
content:".rustdesk.com"; nocase; endswith;
Raw source ET INFO RustDesk Relay Domain in DNS Lookup · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert dns $HOME_NET any -> any any (
    msg:"ET INFO RustDesk Relay Domain in DNS Lookup";
    dns.query;
    content:"rs-"; startswith; fast_pattern;
    pcre:"/[a-z]{2}/Ri"; dotprefix;
    content:".rustdesk.com"; nocase; endswith;
    reference:url,rustdesk.com;
    classtype:misc-activity;
    sid:2044076; rev:1;
    metadata:attack_target Client_Endpoint, created_at 2023_02_02, deployment Perimeter, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_02_02;
)

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