""ET INFO GENERIC SUSPICIOUS POST to Dotted Quad with Fake Browser 2""

SID: 2018359

Revision: 2

Class Type: bad-unknown

Metadata: created_at 2014_04_04, performance_impact Significant, updated_at 2024_05_06

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: " Firefox/"

  • Value: !"Accept-Encoding|3a 20|"

  • Value: !"Referer|3a 20|"

  • Value: !"X-Requested-With|3a 20|"

  • Value: "|0d 0a 0d 0a|"

Within:

PCRE: "/^Host\x3a\s*?\d{1,3}.\d{1,3}.\d{1,3}.\d{1,3}(?:\x3a|\r?\n)/Hmi"

Special Options:

  • http_method

  • nocase

  • http_header

  • fast_pattern

  • http_header

  • http_header

  • http_header

  • nocase

source