""ET TROJAN Observed Lazarus Group Domain (thefrostery .co .uk) in TLS SNI""

SID: 2051015

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2024_02_21, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2024_02_21

Reference:

• Link

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 11|thefrostery.co.uk"

Within: 8

PCRE:

Special Options:

• fast_pattern

source