""ET TROJAN CMDEmber Backdoor Style Request""

SID: 2046168

Revision: 1

Class Type: trojan-activity

Metadata: attack_target Client_Endpoint, created_at 2023_06_08, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence Medium, signature_severity Critical, updated_at 2023_06_08

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: "PUT"

  • Value: "/|28|" Depth: 2

  • Value: "|29|"

  • Value: "/.json?print=silent"

  • Value: "|7b 22 64 65 74 61 69 6c 22 3a 22|"

  • Value: !"User-Agent|3a 20|"

  • Value: !"Referer|3a 20|"

Within: 19

PCRE: "/\/.json\?print=silent$/U"

Special Options:

  • http_method

  • http_uri

  • http_uri

  • http_uri

  • fast_pattern

  • http_header

  • http_header

source