""ET TROJAN BIOPASS RAT Python Activity (GET)""

SID: 2033293

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_07_09, deployment Perimeter, signature_severity Major, tag RAT, updated_at 2021_07_09

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "/res/" Depth: 5

  • Value: ".txt"

  • Value: "User-Agent|3a 20|Python-urllib/"

  • Value: "Host|3a 20|flashdownloadserver.oss-cn-hongkong.aliyuncs.com"

Within:

PCRE: "/.txt$/U"

Special Options:

  • http_method

  • fast_pattern

  • http_uri

  • http_uri

  • http_header

  • http_header

source