""ET TROJAN MassLogger Client Exfil (POST) M3""

SID: 2030878

Revision: 4

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2020_09_14, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2020_11_12

Reference:

  • md5

  • 0a838f0ecff085eb611e41acf78a9682

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: "/?/upload"

  • Value: "{|22|ID|22 3a 22|" Depth: 7

  • Value: "|22 2c 22|User|22 3a 22|"

  • Value: "|22 2c 22|Country|22 3a 22|"

  • Value: "|22 2c 22|Date|22 3a 22|"

  • Value: "|22 2c 22|Image|22 3a|"

  • Value: !"User-Agent"

  • Value: !"Referer"

  • Value: !"Accept"

  • Value: "Content-Type|3a 20|application/json|0d 0a|"

Within:

PCRE: "/upload$/U"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

  • http_header

  • http_header

  • http_header

  • http_header

source