""ET CURRENT_EVENTS TA569 Keitaro TDS Domain in TLS SNI (chestedband .org)""

SID: 2047061

Revision: 3

Class Type: trojan-activity

Metadata: affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2023_08_03, deployment Perimeter, former_category EXPLOIT_KIT, performance_impact Low, confidence High, signature_severity Minor, tag Exploit_Kit, tag ta569, tag TDS, updated_at 2023_08_03, reviewed_at 2023_11_30

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 0f|chestedband.org"

Within: 8

PCRE:

Special Options:

• fast_pattern

source