""ET TROJAN Suspected UTA0178 Domain in TLS SNI""

SID: 2050005

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2024_01_11, deployment Perimeter, signature_severity Major, tag SSL_TLS_SNI, updated_at 2024_07_04, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: 443

Flow: established,to_server

Contents:

  • Value: "|16|" Depth: 1

  • Value: "|01|"

  • Value: "|00 00 12|webb-institute.com"

Within:

PCRE:

Special Options:

source