""ET CURRENT_EVENTS Observed Evil Keitaro TDS Redirection Domain (fiberswatch .com in TLS SNI)""

SID: 2031615

Revision: 3

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_02_11, deployment Perimeter, malware_family KeitaroTDS, performance_impact Low, signature_severity Major, tag SSL_Malicious_Cert, tag TDS, updated_at 2023_04_17

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|fiberswatch.com"

Within: 8

PCRE:

Special Options:

  • fast_pattern

source