""ET TROJAN Win32/80mb3rm4n Grabber CnC Exfil via Discord (POST)""

SID: 2045310

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_05_03, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Major, updated_at 2023_05_03

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: "/api/webhooks/" Depth: 14

  • Value: "discord.com|0d 0a|"

  • Value: "|7b 22|footer|22 3a 7b 22|text|22 3a 22|" Depth: 35

  • Value: "|20|Grabber|20 7c 20|202"

  • Value: "|7d 2c 22|author|22 3a 7b 22|name|22 3a 22|"

  • Value: "|20|Grabber|22 2c 22|url|22 3a 22|http"

  • Value: "|7b 22|name|22 3a 22|Machine|20|Name|22 2c 22|value|22 3a 22|"

Within:

PCRE: "/^Host\x3a\x20[^\r\n]+discord.com/Hmi"

Special Options:

  • http_method

  • http_uri

  • http_header

  • http_client_body

  • fast_pattern

  • http_client_body

  • http_client_body

  • http_client_body

  • http_client_body

source