ET HUNTING DNS Lookup for 8+ hexadecimal only duckdns domain

SID: 2033959Rev: 10 views
History
Sourceet/open
CreatedSeptember 16, 2021
UpdatedSeptember 16, 2021
Classificationbad-unknown
alert dns $HOME_NET any -> any any (msg:"ET HUNTING DNS Lookup for 8+ hexadecimal only duckdns domain"; dns.query; content:".duckdns.org"; fast_pattern; pcre:"/^[a-f0-9]{8,}\.duckdns\.org$/"; reference:url,raw.githubusercontent.com/MISP/misp-warninglists/main/lists/dynamic-dns/list.json; classtype:bad-unknown; sid:2033959; rev:1; metadata:attack_target Client_Endpoint, created_at 2021_09_16, deployment Perimeter, performance_impact Moderate, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_09_16;)

References

urlraw.githubusercontent.com/MISP/misp-warninglists/main/lists/dynamic-dns/list.json

Metadata

attack targetClient_Endpoint
created at2021_09_16
deploymentPerimeter
performance impactModerate
confidenceHigh
signature severityMajor
tagDescription_Generated_By_Proofpoint_Nexus
updated at2021_09_16

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