""ET TROJAN Observed ClickFix Domain (test-1627838 .shop in TLS SNI)""

SID: 2053734

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2024_06_18, deployment Perimeter, malware_family ClickFix, signature_severity Major, updated_at 2024_06_18

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: "test-1627838.shop"

Within: 1

PCRE: "/^(?:\x00\x11|.\x2e)test-1627838.shop/R"

Special Options:

source