""ET TROJAN Win32/TrojanDownloader.Agent.GEM CnC Checkin""

SID: 2035592

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_03_24, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2022_03_24

Reference:

  • md5

  • ecd47e596048ad1af9973a21af303465

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: "uid=" Depth: 4

  • Value: "&avtype="

  • Value: "&majorv="

  • Value: "&minorv="

  • Value: "Content-Type|3a 20|application/x-www-form-urlencoded|0d 0a|"

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • http_client_body

  • http_client_body

  • fast_pattern

  • http_client_body

  • http_client_body

  • http_header

source