""ET TROJAN Win32/Plugx CnC Activity (CONNECT)""

SID: 2044311

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_02_23, deployment Perimeter, signature_severity Major, updated_at 2023_02_23, reviewed_at 2023_11_17

Reference:

  • md5

  • e832281f64504e3dce46860b605116a9

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: to_server,established

Contents:

  • Value: "CONNECT"

  • Value: "/update?id=" Depth: 11

  • Value: "Proxy|2d|Connection|3a 20|Keep|2d|Alive"

  • Value: "Proxy|2d|Authorization|3a 20|Basic|20|"

  • Value: "Content|2d|Type|3a 20|text|2f|html|0d 0a|"

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

  • Value: "User|2d|Agent|3a 20|Mozilla|2f|4|2e|0|20 28|compatible|3b 20|MSIE|0d 0a|"

Within:

PCRE:

Special Options:

  • http_method

  • http_uri

  • fast_pattern

  • http_header

  • http_header

  • http_header

  • http_header

source