""ET TROJAN Campo Loader Activity (GET)""

SID: 2032352

Revision: 3

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2021_03_30, deployment Perimeter, performance_impact Low, signature_severity Major, updated_at 2021_08_10

Reference:

  • md5

  • dd6c4275c1b7b761b6f96a7e1e2f3607

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "/campo/" Depth: 7

  • Value: !"Referer|3a 20|"

Within:

PCRE: "/Host[^\r\n]+\d{1,3}.\d{1,3}.\d{1,3}.\d{1,3}/Hm"

Special Options:

  • http_method

  • fast_pattern

  • http_uri

  • http_header

source