""ET TROJAN Win32/Girostat Stealer (POST)""

SID: 2032319

Revision: 2

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_03_24, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2021_03_24

Reference:

  • md5

  • 934058124782476cdbe7866c4ceed167

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: ".php"

  • Value: "name=|22|info|22 0d 0a|"

  • Value: "name=|22|debug1|22 0d 0a|"

  • Value: "name=|22|debug2|22 0d 0a|"

  • Value: "filename=|22|"

  • Value: "Content-Type|3a 20|multipart/form-data|3b 20|boundary=---------------------------"

  • Value: !"Referer|3a 20|"

  • Value: !"Accept"

Within:

PCRE: "/.php$/U"

Special Options:

  • http_method

  • http_uri

  • http_client_body

  • http_client_body

  • fast_pattern

  • http_client_body

  • http_client_body

  • http_header

  • http_header

  • http_header

source