""ET TROJAN Zacom/NFlog HTTP POST Connectivity Check""

SID: 2020924

Revision: 1

Class Type: trojan-activity

Metadata: created_at 2015_04_16, updated_at 2015_04_16

Reference:

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: "/STTip.asp"

  • Value: !"Accept-"

  • Value: !"Referer|3a|"

  • Value: !"Content-Type|3a|"

  • Value: "Content-Length|3a 20|0|0d 0a|"

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_header

  • http_header

  • http_header

  • http_header

source