""ET TROJAN Unknown Powershell Profiler Exfiltrating System Data""

SID: 2044702

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 2023_03_20, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, updated_at 2023_03_20

Reference:

  • md5

  • cd07abe72f907943923528c4931ede0b

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: "/dash/post_data/"

  • Value: "WindowsPowerShell"

  • Value: "|22|lang|22 3a|"

  • Value: "|22|cpu|22 3a|"

  • Value: "|22|name|22 3a|"

  • Value: "|22|av|22 3a|"

  • Value: "|22|os|22 3a 20 22|Microsoft Windows"

  • Value: "|22|gpu|22 3a|"

  • Value: "|22|uuid|22 3a|"

  • Value: "|22|domain|22 3a|"

Within:

PCRE: "/^User-Agent\x3a\x20[^\r\n]+WindowsPowerShell/Hmi"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_header

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

source