""ET TROJAN TA401 Arid Viper Related Activity (POST)""

SID: 2036928

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_06_07, deployment Perimeter, signature_severity Major, updated_at 2022_06_07

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "POST"

  • Value: "pcUHJvZ3JhbURhdG"

Within:

PCRE: "/^\/[a-z0-9]{16}\//Ui"

Special Options:

  • http_method

  • http_client_body

  • fast_pattern

source