""ET TROJAN Malicious Chrome Extension Click Fraud Activity via Websocket""

SID: 2025221

Revision: 4

Class Type: trojan-activity

Metadata: affected_product Any, attack_target Client_Endpoint, created_at 2018_01_18, deployment Perimeter, performance_impact Moderate, signature_severity Major, updated_at 2018_06_11

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "|7b 22|id|22 3a|"

  • Value: "|2c 22|data|22 3a 7b 22|method|22 3a 22|GET|22 2c 22|url|22 3a 22|"

  • Value: "|22 2c 22|headers|22 3a 7b 22|"

  • Value: "|2c 22|timeout|22 3a|30000|2c 22|body|22 3a 22|"

Within: 10

PCRE:

Special Options:

  • fast_pattern

source