""ET TROJAN UAC-0050 Domain (8161 .uk in TLS SNI)""

SID: 2051632

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2024_03_11, deployment Perimeter, confidence High, signature_severity Major, updated_at 2024_03_11

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: 443

Flow: established,to_server

Contents:

  • Value: "|16|"

  • Value: "|01|"

  • Value: "|00 00|"

  • Value: "|00|"

  • Value: "8161.uk"

Within: 1

PCRE: "/^(?:\x00\x07|.\x2e)8161.uk/R"

Special Options:

source