""ET TROJAN Ducktail APT Certificate Observed Inbound (Waka Server CA)""

SID: 2052443

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, tls_state TLSEncrypt, created_at 2024_05_06, malware_family Ducktail, confidence Medium, signature_severity Major, updated_at 2024_05_06

Reference:

  • md5

  • 1d5616b719ab205d6c50abf9f74b6cc6

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: 443

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "|16|"

  • Value: "|0b|"

  • Value: "|06 03 55 04 03|"

  • Value: "|14|Waka|20|Server|20|CA"

  • Value: "|06 03 55 04 03|"

  • Value: "|14|Waka|20|Server|20|CA"

Within: 21

PCRE:

Special Options:

  • fast_pattern

source