""ET CURRENT_EVENTS [Fireeye] Backdoor.HTTP.GORAT.[POST]""

SID: 2031270

Revision: 3

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_12_08, deployment Perimeter, signature_severity Major, updated_at 2020_12_09

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 / HTTP/1.1" Depth: 15

  • Value: "Connection|3a 20|upgrade"

  • Value: "|0d 0a|Upgrade|3a 20|tcp/1|0d 0a|"

  • Value: !"Referer|3a 20|"

  • Value: !"Accept"

  • Value: !"Cookie|3a 20|"

Within:

PCRE:

Special Options:

  • http_header

  • http_header

  • fast_pattern

  • http_header

  • http_header

source