""ET TROJAN NetBackdoor Checkin""

SID: 2022244

Revision: 1

Class Type: trojan-activity

Metadata: created_at 2015_12_12, updated_at 2015_12_12

Reference:

  • md5

  • a6a9e8b0432ad557245ac8ad2926ed7c

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: to_server,established

Contents:

  • Value: "POST"

  • Value: ".php"

  • Value: "|0d 0a|log="

  • Value: "path="

Within:

PCRE: "/path=[A-Z]\x3a\x5c[A-F0-9]+\r\nlog=/Pi"

Special Options:

  • http_method

  • http_uri

  • http_client_body

  • fast_pattern

  • http_client_body

source