""ET TROJAN Win32/DarkCloud Exfil Over SMTP (Body)""

SID: 2043219

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_01_05, deployment Perimeter, signature_severity Major, updated_at 2023_01_05

Reference:

  • md5

  • a498f17c44a6762c239d21cc12afec19

Protocol: tcp

Source Network: $HOME_NET

Source Port: any

Destination Network: $EXTERNAL_NET

Destination Port: [25,587]

Flow: established,to_server

Contents:

  • Value: "|3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d|DARKCLOUD|3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d|"

Within:

PCRE:

Special Options:

source