""ET TROJAN Observed Card Skimmer CnC Domain in TLS SNI""

SID: 2031205

Revision: 3

Class Type: trojan-activity

Metadata: affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2020_10_06, deployment Perimeter, performance_impact Low, signature_severity Major, tag SSL_Malicious_Cert, tag CardSkimmer, updated_at 2022_03_16

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: "tags-manager.com"

Within: 1

PCRE: "/^(?:\x00\x10|.\x2e)tags-manager.com/R"

Special Options:

source