Spygate

Overview

Backdoor:Win32/Spygate (widely known as SpyGate-RAT) is a prominent, commercial Remote Access Trojan builder developed in .NET and Visual Basic that emerged in 2014, architecturally derived from the leaked Spy-Net and njRAT (Bladabindi) codebases. Marketed openly on cybercrime forums and YouTube tutorials, SpyGate became a staple weapon for hacktivists, cybercriminals, and Advanced Persistent Threat groups across the Middle East, North Africa, and Latin America. The malware client compiles compact, highly obfuscated executable payloads that communicate with attacker-controlled command servers over configurable TCP ports (typically 1200 or 1500) using custom delimiter-based plaintext and XOR-encoded commands. SpyGate equips operators with real-time keystroke logging, webcam and microphone spying, remote registry editing, file manager browsing, process termination, and password extraction from major web browsers, email clients, and messenger apps. It utilizes dynamic DNS providers (No-IP, DuckDNS) for resilient C2 resolution and employs process hollowing into svchost.exe and MSBuild.exe to evade host-based behavioral monitoring.

Known aliases

Threat reports may refer to this family under multiple names:

• SpyGate
• SpyGate-RAT
• Backdoor.Spygate
• Win32/Spygate
• Spy-Net Fork

Threat Actor Attribution

Attribution is probabilistic, not a science. Each link below states its confidence level and the evidence behind it.

• Middle Eastern Cybercrime Underground High confidence
  Basis:
• Global RAT Operators High confidence
  Basis:

Family Pedigree & Lineage

Malware authors regularly fork and iterate upon existing codebases. Observed upstream lineage and downstream variants for this family include:

Derived From / Upstream Ancestry: Spy-Net · Njrat

Known Derivatives & Downstream Variants: Spygate V0.2.6 · Spygate V2.9 · Spygate Pro Official

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.
• T1071.001: Implement web filtering and SSL/TLS inspection to detect malicious command and control (C2) traffic hiding in HTTP/HTTPS.
• T1113: Monitor for frequent or unauthorized screen captures or clipboard reads. Restrict background applications from accessing desktop APIs.
• T1125: Restrict access to local camera or microphone APIs. Utilize endpoint protection that monitors hardware access.

MITRE D3FEND™ Defensive Countermeasures

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

Exploited Vulnerabilities (CVEs)

This malware family is documented weaponizing the following common vulnerabilities and exposures:

• CVE-2017-0199 — In-depth exploitation analysis and catalog intelligence (NIST NVD ↗).
• CVE-2017-11882 — In-depth exploitation analysis and catalog intelligence (NIST NVD ↗).

Command & Control (C2) and Network Profile

How this family talks to its operators. C2 traffic can often identify a family even when its code and configuration are hard to analyse. Ports and patterns are historical and change between campaigns, so use them as hunting leads rather than block-only rules.

Indicators of Compromise

Public indicators drawn from CISA advisories and vendor reporting. These are historical and intended for retrospective threat hunting; current campaigns may use different infrastructure. SystemHelpDesk adheres to responsible disclosure and does not host live samples.

File hashes (SHA-256, sample)

Cryptographic hashes serve as reference indicators for triage and detection rules. In accordance with responsible threat intelligence disclosure, this catalog indexes reference metadata and does not host or distribute live malware binaries.

• 4b6c33fef79ebbcce763ffca07fa81215b493c4e3658ebc76b9ee2f8719cb49d
• 89a27eb2762eb295fe3509bc9f636257a3e7ef7b1bcfd1a7b489d81d6f228b7e

Delivery vectors

• phishing_emails
• trojanized_software
• dynamic_dns_downloads

Persistence mechanisms

• HKCU\Software\Microsoft\Windows\CurrentVersion\Run
• Scheduled Tasks

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_SPYGATE_T1_ARTIFACT {
    meta:
        description = "Tier 1 Primitive Artifact: Raw string matches for Spygate"
        tier = "T1 - Primitive Artifact"
        confidence = "Low-Medium (Fast Triage)"
        author = "SystemHelpdesk Threat Research Desk"
        date = "2026-10-14"
    strings:
        $s1 = "spygate" ascii wide nocase
        $s2 = "spygate" ascii wide nocase
        $s3 = "spygate-rat" ascii wide nocase
        $s4 = "backdoor.spygate" ascii wide nocase
        $s5 = "win32/spygate" ascii wide nocase
        $s6 = "spy-net fork" ascii wide nocase
    condition:
        uint16(0) == 0x5a4d and any of them
}

title: SystemHelpDesk Detection - Spygate (Rat) Execution & Triage
id: e0f871e3-b3ef-50b8-9e4e-0c469f8b5a45
status: production
description: Detects execution, defense evasion, and persistence behaviors associated
  with the Spygate malware family. Detects unauthorized persistence creation via Windows
  Registry Run keys, scheduled tasks, and privilege escalation indicative of RAT installations.
references:
- https://malware-families-catalog.systemhelpdesk.com/families/spygate
- https://malware-families-catalog.systemhelpdesk.com/defensive/backdoor-rat-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.rat
- author.ricky-jordan
- source.systemhelpdesk-mfc
- attack.t1055_012
- attack.t1056_001
- attack.t1125
- attack.t1113
- attack.t1071_001
logsource:
  category: process_creation
  product: windows
detection:
  selection_process:
    Image|endswith:
    - \reg.exe
    - \schtasks.exe
    - \cmd.exe
    - \powershell.exe
    CommandLine|contains:
    - \CurrentVersion\Run
    - /create /tn
    - bypass -enc
    - net user /add
    - net localgroup administrators
  condition: selection_process
falsepositives:
- Legitimate enterprise administrative scripts during approved change windows
- Authorized IT software deployment utilities and backup management agents
level: high

rule MALWARE_WIN_SPYGATE_T3_ATTRIBUTION {
    meta:
        description = "Tier 3 Attribution Fingerprint: Heuristic detection for Spygate 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 = "spygate" 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. Terminate hollowed processes (svchost.exe, MSBuild.exe) spawned from user-writable directories.
2. Block outbound TCP connections to dynamic DNS providers (No-IP, DuckDNS) on non-standard ports.
3. Reset browser and email credentials accessed from compromised workstations.
4. Apply security patches for Microsoft Office equation editor vulnerabilities CVE-2017-0199 and CVE-2017-11882.

What to Avoid

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

1. Do not allow outbound TCP connections on high non-standard ports from client endpoints.
2. Avoid opening unverified email attachments promising financial or geopolitical updates.
3. Never disable endpoint detection and response (EDR) agents to run unverified software.

References & External Analysis

• Trend Micro Threat Research: SpyGate RAT Operations
• Fortinet FortiGuard Labs: Technical Breakdown of SpyGate Backdoor
• NIST National Vulnerability Database CVE-2017-0199
• Search "spygate" on VirusTotal (External Analysis)
• Search "spygate" on Any.Run (Sandbox Sandbox)
• Search "spygate" on MalwareBazaar (Malware Samples)

Frequently Asked Questions

Related Threats (Category: Rat)

Explore other documented threats in the same operational category:

• Farfli
• Ircbot
• Asyncrat
• Serenity_Rat
• Netwiredrc
• Mokes
• Rebhip
• Lost_Door

Machine-readable

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