Versions (4)
Version DetailsCurrent
Rev: 1 • Sep 16, 2021, 12:00 PMET HUNTING DNS Lookup for 8+ hexadecimal only duckdns domain
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;)
Sep 16, 2021, 12:00 PM
Sep 16, 2021, 12:00 PM
Sep 21, 2024, 3:00 AM
Sep 8, 2025, 9:34 PM
rules/emerging-hunting.rules