""ET TROJAN DarkGate Payload Inbound""

SID: 2051664

Revision: 1

Class Type: trojan-activity

Metadata: affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state plaintext, created_at 2024_03_14, deployment Perimeter, malware_family DarkGate, confidence High, signature_severity Major, tag c2, updated_at 2024_03_14, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol

Reference:

  • md5

  • ac89528d1040074d45d5c19a0ceb7a6a

Protocol: tcp

Source Network: $EXTERNAL_NET

Source Port: $HTTP_PORTS

Destination Network: $HOME_NET

Destination Port: any

Flow: established,to_client

Contents:

  • Value: "Content|2d|Disposition|3a 20|attachment|3b 20|filename|3d 22|"

  • Value: "ni|20 27|C|3a 2f|" Depth: 7

  • Value: "|27 20 2d|Type|20|Directory|20 2d|Force|3b|cd|20 27|C|3a 2f|"

  • Value: "utoHotkey|2e|exe|3b|Invoke|2d|WebRequest|20 2d|Uri|20 22|http"

  • Value: "|2e|ahk|27 3b|attrib"

Within:

PCRE: "/Content\x2dDisposition\x3a\x20attachment\x3b\x20filename\x3d\x22(?:[a-z]{8})\x22[\r\n]/H"

Special Options:

  • http_header

  • file_data

  • fast_pattern

source