""ET CURRENT_EVENTS ZPHP Domain in TLS SNI (gpksanfrancisco .com)""

SID: 2049270

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2023_11_20, deployment Perimeter, former_category EXPLOIT_KIT, performance_impact Low, confidence High, signature_severity Minor, tag Exploit_Kit, updated_at 2023_11_20

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: "gpksanfrancisco.com"

Within: 1

PCRE: "/^(?:\x00\x13|.\x2e)gpksanfrancisco.com/R"

Special Options:

source