""ET TROJAN DCRat Initial Checkin Server Response M5""

SID: 2043417

Revision: 2

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2023_01_20, deployment Perimeter, deployment SSLDecrypt, signature_severity Major, updated_at 2023_04_04, reviewed_at 2024_01_26

Reference:

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,from_server

Contents:

  • Value: "200"

  • Value: "|7b 22|ok|22 3a|true|2c 22|result|22 3a 7b 22|" Depth: 22

  • Value: "|22|is|5f|bot|22 3a|true|2c 22|first|5f|name|22 3a 22|DCRAT|20|BOT|22 2c 22|username|22 3a 22|dcra9bot|22|"

Within: 60

PCRE:

Special Options:

  • http_stat_code

  • file_data

source