""ET TROJAN LNK/imageres CnC Payload Request (GET)""

SID: 2049285

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_11_22, deployment Perimeter, confidence Medium, signature_severity Major, updated_at 2023_11_22

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "GET"

  • Value: "/file/t/" Depth: 8

  • Value: ".exe"

  • Value: "|0d 0a|Connection|3a 20|Keep-Alive|0d 0a|"

  • Value: !"Referer|3a 20|"

  • Value: !"Accept|3a 20|"

Within:

PCRE: "/.exe$/U"

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_uri

  • http_header

  • http_header

  • http_header

source