""ET TROJAN Foudre Checkin M4""

SID: 2031418

Revision: 3

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2020_12_16, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2021_02_03

Reference:

  • md5

  • d01bcca6255a4f062fc59a014f407532

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: "/en/?2" Depth: 6

  • Value: "f=" Depth: 2

  • Value: "&c="

  • Value: "&u="

  • Value: "&v="

  • Value: "&s="

  • Value: "&mi="

  • Value: "&t="

  • Value: "&txt="

  • Value: "&e=EOF"

Within:

PCRE: "/^Host\x3a\x20[a-f0-9]{8}.(?:s(?:pac|it)e|net|top)/Hm"

Special Options:

  • http_method

  • fast_pattern

  • http_uri

  • http_client_body

  • 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