Versions (4)
Version DetailsCurrent
Rev: 2 • May 6, 2024, 12:00 PMET MALWARE Ducktail APT Certificate Observed Inbound (Waka Server CA)
alert tls $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE Ducktail APT Certificate Observed Inbound (Waka Server CA)"; flow:established,to_client; tls.cert_subject; bsize:17; content:"CN=Waka|20|Server|20|CA"; fast_pattern; tls.cert_issuer; bsize:17; content:"CN=Waka|20|Server|20|CA"; reference:md5,1d5616b719ab205d6c50abf9f74b6cc6; classtype:trojan-activity; sid:2052443; rev:2; metadata:attack_target Client_Endpoint, tls_state TLSEncrypt, created_at 2024_05_06, malware_family Ducktail, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_07_26;)
May 6, 2024, 12:00 PM
Jul 26, 2024, 12:00 PM
May 6, 2024, 10:00 PM
Aug 11, 2025, 10:35 PM
rules/emerging-malware.rules