""ET TROJAN Win32/Cryptbotv2 CnC Activity (POST) M3""

SID: 2045213

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_04_27, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Major, updated_at 2023_04_27

Reference:

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: $HTTP_PORTS

Flow: established,to_server

Contents:

  • Value: ".php"

  • Value: "Content|2d|Disposition|3a 20|form|2d|data|3b 20|name|3d 22|files|5b 5d 22 3b 20|filename|3d 22|"

  • Value: "Content-Type|3a 20|multipart|2f|form|2d|data|3b 20|boundary|3d|"

Within:

PCRE: "/.php$/U"

Special Options:

  • http_uri

  • http_client_body

  • http_header

source