""ET TROJAN QuickBooks Pop-Up Scam - Checkin Response""

SID: 2049223

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2023_11_16, deployment Perimeter, performance_impact Low, confidence High, signature_severity Critical, updated_at 2023_11_16

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "|22|status|22 3a|200|2c|"

  • Value: "|22|message|22 3a|"

  • Value: "|22|response|22 3a 7b 22|user|5f|token|5f|id|22 3a 22|"

  • Value: "|22|access|5f|token|22 3a 22|"

Within:

PCRE:

Special Options:

  • file_data

  • fast_pattern

source