""ET POLICY Possible Psiphon Proxy Tool traffic""

SID: 2022679

Revision: 3

Class Type: policy-violation

Metadata: created_at 2016_03_28, updated_at 2016_03_30

Reference:

  • md5

  • a050a1e9fa0fe0e01cfbf14ead388c4e

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: "Content-Length|3a|"

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

  • Value: "Accept-Encoding|3a| gzip"

  • Value: !"User-Agent|3a 20|"

  • Value: !"Referer|3a|"

  • Value: !"Connection"

  • Value: !"Cache-Control"

  • Value: !"Accept|3a 20|"

  • Value: "Cookie|3a 20|"

Within:

PCRE: "/^[A-Z]=(?:[A-Za-z0-9+/])+=?=?\r\n/R"

Special Options:

  • http_method

  • http_header

  • http_header

  • nocase

  • http_header

  • http_header

  • http_header

  • http_header

  • http_header

source