""ET TROJAN MASSLOGGER Client Data Exfil (POST)""

SID: 2030154

Revision: 4

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2020_05_11, deployment Perimeter, performance_impact Moderate, signature_severity Major, updated_at 2020_06_24

Reference:

  • md5

  • 8a1ba030a3bcfde60ad2e067fec8b773

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: ".zip|22 0d 0a|Content-Type: application/zip|0d 0a 0d 0a|PK"

  • Value: "POST"

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

  • Value: "Content-Disposition|3a| form-data|3b| name=|22|file|22 3b 20|"

  • Value: "Log.txt"

  • Value: "PK"

Within:

PCRE: "/.php$/U"

Special Options:

  • fast_pattern

  • http_method

  • http_header

  • http_client_body

  • http_client_body

  • http_client_body

source