ET ATTACK_RESPONSE DNS Query for Observed CVE-2021-44228 Security Scanner Domain (canarytokens .com)

Query · suricata

dns.query;
content:".l4j."; nocase;
content:".canarytokens.com"; nocase; endswith; fast_pattern;
Raw source ET ATTACK_RESPONSE DNS Query for Observed CVE-2021-44228 Security Scanner Domain (canarytokens .com) · 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 ATTACK_RESPONSE DNS Query for Observed CVE-2021-44228 Security Scanner Domain (canarytokens .com)";
    dns.query;
    content:".l4j."; nocase;
    content:".canarytokens.com"; nocase; endswith; fast_pattern;
    reference:cve,2021-44228;
    classtype:domain-c2;
    sid:2034832; rev:2;
    metadata:attack_target Client_and_Server, created_at 2021_12_21, cve CVE_2021_44228, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, tag CISA_KEV, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_12_21;
)

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