""ET TROJAN Observed Magecart/Skimmer - _try_action CnC Domain (cdn-frontend .com in TLS SNI)""

SID: 2032789

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2021_04_20, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, signature_severity Major, tag CardSkimmer, updated_at 2021_04_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 10|cdn-frontend.com"

Within: 8

PCRE:

Special Options:

  • fast_pattern

source