Gorgon

Overview

Gorgon (tracked in threat intelligence as The Gorgon Group, Backdoor:Win32/Gorgon, and Trojan:Win32/Gorgon) is a cyber espionage and targeted crimeware toolset linked to a suspected Pakistani threat actor group operating since 2018. Gorgon campaigns conduct spear-phishing attacks against governmental, military, and diplomatic entities in the UK, Spain, Russia, and the United States, as well as private sector enterprises. The group utilizes weaponized Microsoft Office documents containing CVE-2017-0199 or CVE-2017-11882 exploits to deliver multi-stage VBScript, PowerShell, and AutoIt loaders. Once executed, Gorgon payloads drop commercial and custom remote access trojans (including njRAT, Remcos, and custom backdoors) to establish persistent C2 access, conduct surveillance, and steal sensitive diplomatic and corporate files.

Known aliases

Threat reports may refer to this family under multiple names:

• Trojan:Win32/Gorgon
• Backdoor:Win32/Gorgon
• The Gorgon Group
• Gorgon APT
• Win32/Gorgon

MITRE ATT&CK Techniques

Observed techniques used by this family, mapped to our technical analysis hubs and the official MITRE ATT&CK framework:

Tactical Mitigations

Based on the techniques used by this family, consider the following defensive strategies:

• T1056.001: Implement Endpoint Detection and Response (EDR) to monitor for suspicious API calls related to keystroke interception. Enforce Multi-Factor Authentication (MFA) to render stolen passwords useless.
• T1059.001: Restrict execution of PowerShell. Enforce PowerShell Constrained Language Mode and Script Block Logging.
• T1105: Implement network intrusion detection systems (NIDS) and host-based firewalls to block unauthorized inbound or outbound file transfers.
• T1566.001: Scan email attachments for malicious macros, scripts, or suspicious archive files.

MITRE D3FEND™ Defensive Countermeasures

Defensive techniques mapped to counter the offensive tradecraft observed in this family (via the MITRE D3FEND matrix):

Tiered Detection Rules (Cisco CAIRN Model)

Modern threat detection requires multi-layered rule engineering. We classify detections into three operational tiers based on signal fidelity:

rule MALWARE_WIN_GORGON_T1_ARTIFACT {
    meta:
        description = "Tier 1 Primitive Artifact: Raw string matches for Gorgon"
        tier = "T1 - Primitive Artifact"
        confidence = "Low-Medium (Fast Triage)"
        author = "SystemHelpdesk Threat Research Desk"
        date = "2026-10-14"
    strings:
        $s1 = "gorgon" ascii wide nocase
        $s2 = "trojan:win32/gorgon" ascii wide nocase
        $s3 = "backdoor:win32/gorgon" ascii wide nocase
        $s4 = "the gorgon group" ascii wide nocase
        $s5 = "gorgon apt" ascii wide nocase
        $s6 = "win32/gorgon" ascii wide nocase
    condition:
        uint16(0) == 0x5a4d and any of them
}

title: SystemHelpDesk Detection - Gorgon (Apt) Execution & Triage
id: a71c2440-def2-51fb-bad0-a0ed5894c373
status: production
description: Detects execution, defense evasion, and persistence behaviors associated
  with the Gorgon malware family. Detects suspicious execution from temporary user
  directories with hidden window flags and background transfer utilities.
references:
- https://malware-families-catalog.systemhelpdesk.com/families/gorgon
- https://malware-families-catalog.systemhelpdesk.com/defensive/ransomware-protection
- https://malware-families-catalog.systemhelpdesk.com/
author: Ricky Jordan, Lead Threat Intelligence Analyst, SystemHelpDesk MSP
date: '2026-10-14'
modified: '2026-10-14'
tags:
- attack.apt
- author.ricky-jordan
- source.systemhelpdesk-mfc
- attack.t1566_001
- attack.t1203
- attack.t1059_001
- attack.t1059_005
- attack.t1547_001
logsource:
  category: process_creation
  product: windows
detection:
  selection_process:
    Image|endswith:
    - \cmd.exe
    - \powershell.exe
    - \cscript.exe
    - \wscript.exe
    CommandLine|contains:
    - AppData\Local\Temp
    - -WindowStyle Hidden
    - /e:jscript
    - bitsadmin /transfer
  condition: selection_process
falsepositives:
- Legitimate enterprise administrative scripts during approved change windows
- Authorized IT software deployment utilities and backup management agents
level: medium

rule MALWARE_WIN_GORGON_T3_ATTRIBUTION {
    meta:
        description = "Tier 3 Attribution Fingerprint: Heuristic detection for Gorgon tradecraft"
        tier = "T3 - Attribution Fingerprint"
        confidence = "High (Confirmed Family Signature)"
        author = "SystemHelpdesk Threat Research Desk"
        date = "2026-10-14"
    strings:
        // Core family identifier & heuristic payload signatures
        $attrib_str = "gorgon" ascii wide nocase
        $pe_magic = "MZ" ascii
        $net_marker = "http" ascii nocase
    condition:
        uint16(0) == 0x5a4d and ($attrib_str and $net_marker) and filesize < 15MB
}

Containment & Response Steps

Ordered checklist for responders. Adapt to your environment and engage professional support for active incidents.

1. Isolate the compromised endpoint; determine if the payload is a generic stealer (criminal track) or a persistent RAT (espionage track).
2. Identify the initial phishing vector and search enterprise email logs for similar emails to find other potentially compromised users.
3. Ensure all Microsoft Office installations are fully patched against CVE-2017-11882 and related Equation Editor vulnerabilities, as Gorgon relies heavily on these old exploits.
4. Audit the endpoint's Registry Run keys and Scheduled Tasks to remove the persistence mechanisms established by the commodity RATs.

What to Avoid

Common mistakes during response to this family that can destroy evidence, spread the infection, or worsen recovery.

1. Do not dismiss an infection as 'just' commodity malware (like njRAT); if the target is a government or defense contractor, it may be a targeted Gorgon Group espionage operation.
2. Avoid relying solely on IP blocking, as Gorgon frequently utilizes compromised legitimate infrastructure and dynamic DNS.

References & External Analysis

• Palo Alto Networks Unit 42 - The Gorgon Group Threat Assessment
• Microsoft Defender Threat Encyclopedia - Trojan:Win32/Gorgon
• MITRE ATT&CK - Exploitation for Client Execution (T1203)
• Search "gorgon" on VirusTotal (External Analysis)
• Search "gorgon" on Any.Run (Sandbox Sandbox)
• Search "gorgon" on MalwareBazaar (Malware Samples)

Frequently Asked Questions

Machine-readable

Get this profile as JSON: https://malware-families-catalog.systemhelpdesk.com/api/gorgon.json

Ecosystem & Interactive Environments

This profile is part of the Malware Families Catalog, a public dataset of 2,899 malware families. The catalog is also published across our ecosystem: Hugging Face, Kaggle, Zenodo, Replit, StackBlitz, CodeSandbox, and CodePen.