ET INFO DYNAMIC_DNS Query to *.dyndns. Domain
ET INFO DYNAMIC_DNS Query to *.duckdns. Domain
ET POLICY External IP Lookup - checkip.dyndns.org
ET POLICY DynDNS CheckIp External IP Address Server Response
SSLBL: Malicious JA3 SSL-Client Fingerprint detected (Tofsee)
ET JA3 Hash - Possible Malware - Various Trickbot/Kovter/Dridex
ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)