From Fake Errors To DNS Payloads: The Rapid Rise Of ClickFix-Style Attacks

In just two years, ClickFix has evolved from a simple social-engineering trick into one of the most industrialized attack vectors in the world. What began as fake verification prompts instructing users to paste clipboard-poisoned commands into the Windows Run dialog has now expanded into a wider ecosystem of variants, builder platforms, browser-based lures, DNS-staged payloads, and token theft workflows.

 

The technique’s growth has been nothing short of explosive:

  • 517% surge in the first half of 2025, now representing 8% of all blocked attacks, according to ESET.
  • Turnkey ClickFix platforms selling for $800 with conversion rates near 60%, as reported by Hudson Rock.
  • 149,000+ confirmed infections on the blockchain from a single campaign analysed by Expel in 2026.

This is not a niche threat. It is industrialized, profitable, and widely adopted by both cybercriminals and state-aligned threat actors. And thanks to new variants such as CrashFix, ConsentFix, KongTuke, FileFix, TerminalFix, DownloadFix, and GlitchFix, the technique is evolving faster than defenders can adapt.

Threat Overview

ClickFix differs from traditional phishing and malware delivery because it does not rely on browser exploits, malicious attachments, or silent drive-by downloads. Instead, it relies on the victim to perform the final malicious step.

The core pattern is simple:

  1. A user visits a compromised or malicious page.
  2. A fake system prompt tells them to “fix” an issue.
  3. The page silently writes malicious code into their clipboard.
  4. The victim is instructed to paste it into:
    • the Windows Run dialog (ClickFix)
    • File Explorer’s address bar (FileFix)
    • PowerShell (TerminalFix)
    • a downloaded script (DownloadFix)

The entire chain takes seconds, and to security tools, it looks like:

  • the user copied text
  • the user opened a system dialogue
  • the user ran a command

Every step is legitimate, until it isn’t.

This is why ClickFix is often described as existing in the “air gap” between browser security and OS execution.

Evolution of ClickFix Variants

1. ClickFix: The Original Copy-and-Paste Attack

The first and most widespread variant.

  • How it works
    • Fake Cloudflare or website verification pages appear.
    • JavaScript writes a malicious command to the clipboard.
    • The user pastes the command into the Windows Run dialog.
    • The command downloads and executes a second-stage payload (often an infostealer)
  • Typical payloads
    • Lumma Stealer
    • Vidar
    • DarkGate
    • AsyncRAT
    • Danabot

ClickFix’s success created the foundation for an entire ecosystem of successors.

Figure 1: Original ClickFix prompt

 

2. FileFix: Weaponising File Explorer

Instead of the Run dialog, FileFix instructs users to paste commands into Explorer’s address bar. This variant Used heavily in early 2025.

Why it works

Attackers mimic a legitimate file upload workflow using a “Browse…” button. When users follow the instructions, the pasted command triggers a PowerShell download-and-execute chain.

Figure 2: FileFix technique

 

3. TerminalFix: Targeting Windows and macOS

TerminalFix removes the UI tricks.

Victims are told:

“Open PowerShell or Terminal and paste the verification command.”

  • Cross-platform execution
    • Windows: PowerShell → iwr → iex
    • macOS: curl → chmod +x → bash
    • Payload: AMOS (Atomic macOS Stealer)

This variant expanded ClickFix techniques beyond Windows and into macOS environments, often delivering credential-stealing malware such as AMOS.

Figure 3: TerminalFix technique

 

4. DownloadFix: The Fake “Broken Download” Repair Tool

A clever twist:

  • Attackers simulate a failed PDF download, then offer a “repairtool.cmd” to fix it.

Key characteristics

  • Fake PDF or document download failure
  • Malicious script presented as a troubleshooting tool
  • User manually executes the downloaded file (e.g., repairtool.cmd)

DownloadFix shows that ClickFix doesn’t require clipboard abuse at all.

Figure 4: DownloadFix repair lure

 

5. CrashFix: The Most Technically Advanced Variant

CrashFix is one of the most sophisticated ClickFix-style attacks ever discovered.

  • Key characteristics
    • Malicious Chrome extension (NexShield), cloned from uBlock Origin Lite
    • 60-minute activation delay (evades sandboxes)
    • Browser DoS crash loop forcing Chrome to freeze
    • Fake pop-up claiming “Your browser stopped abnormally”
    • Clipboard-poisoned PowerShell one-liner
    • Anti-analysis capabilities (blocked DevTools, no right-click)
  • Payload
    CrashFix delivers ModeloRAT, a Python-based remote access trojan:

    • RC4-encrypted C2
    • Full device reconnaissance
    • Privilege checks
    • Lateral movement potential
    • Persistence via Startup folder
    • Only deployed on domain-joined enterprise hosts

CrashFix is enterprise-focused, stealthy, and destructive.

Figure 5: CrashFix

 

6. ConsentFix: Browser-Only OAuth Token Theft

ConsentFix removes OS-level command execution entirely.

Instead of running a system command, victims are instructed to paste a malicious localhost URL into their browser, allowing attackers to capture:

  • OAuth authorization codes
  • session tokens
  • access to Microsoft accounts

It targets Azure CLI, a trusted Microsoft app, making revocation difficult. This is one of the most dangerous evolutions yet.

Figure 6: ConsentFix

 

7. GlitchFix: Weaponising UI Corruption

Used heavily in the ErrTraffic platform, GlitchFix corrupts webpages using Zalgo characters.

Users are presented with a “Fix” button, which appears to repair the page but instead triggers a ClickFix-style execution chain.

This variant focuses heavily on psychological manipulation rather than technical complexity.

8. KongTuke: DNS TXT Record Malware Delivery

The newest and stealthiest variant, attributed to a threat actor known as KongTuke.

Documented by Unit 42 in Feb 2026.

  • How it works
    • User runs a PowerShell one-liner
    • It performs Resolve-DnsName against attacker domains using 8.8.8.8
    • The payload is hidden in DNS TXT records
    • PowerShell executes the decoded command
    • Second-stage ZIP downloads Python-based reconnaissance tools
    • Final payload: ModeloRAT
  • Why it’s dangerous
    • Evades URL filtering
    • Bypasses corporate DNS resolvers
    • Looks like normal DNS traffic
    • Enables dynamic payload rotation

This marks a major step: ClickFix is now a DNS-staged malware delivery framework.

Figure 8: KongTuke

 

 

How ClickFix Payloads Are Delivered

To evade defenders, attackers spread payload delivery across multiple technical layers:

  • Clipboard → Run dialog → HTTP payload
  • Clipboard → File Explorer → PowerShell
  • Clipboard → Terminal (macOS/Linux)
  • Fake download → Repair tool execution
  • Browser extension → LOLBin → RAT
  • DNS TXT → PowerShell → RAT
  • Blockchain → Smart contract → JavaScript loader
  • Steganography → Image decode → Memory-only payload

!   ClickFix is not a technique. It is a delivery framework.

Why Security Tools Fail to Stop It

Most traditional security tools monitor automated malware delivery.

ClickFix flips the model: The user manually performs the malicious action.

Browsers see a clipboard write.

EDR tools see a user launching Run.exe or PowerShell.

Network tools see a legitimate GET request.

Everything appears normal, because the user initiated it.

Attackers further reinforce this advantage by abusing trusted binaries and LOLBins such as:

  • finger.exe
  • SyncAppvPublishingServer.vbs
  • mshta.exe
  • curl.exe
  • cmd.exe
  • conhost.exe

As Marcus Hutchins put it:

“Organizations and EDR are unlikely to outright block this.”

ErrTraffic: ClickFix-as-a-Service

In December 2025, the game changed.

Hudson Rock discovered ErrTraffic, an $800 commercial ClickFix platform with:

  • a SaaS dashboard
  • campaign analytics
  • OS/browser fingerprinting
  • loader management
  • built-in GlitchFix UI corruption
  • AMOS, Vidar, Lumma Stealer delivery
  • self-propagating website injection via stolen CMS credentials

This is phishing kits 2.0, but far more effective.

Other builders now sell for $200–$1,500/month, including:

  • JackFix
  • FileFix Pro
  • CrashFix Builder
  • ConsentFix Studio
  • GlitchFix Ultimate

ClickFix has reached full commercial maturity.

Threat Actors Adoption

ClickFix has rapidly spread across multiple threat actor categories.

Cybercriminal groups have used it to deliver:

  • Lumma
  • DarkGate
  • AsyncRAT
  • Danabot
  • Vidar

Nation-state and state-aligned actors have also adopted it:

Threat Actor Origin Technique
Kimsuky North Korea Fake diplomatic emails using ClickFix lures
MuddyWater Iran Fake Microsoft updates prompts
APT28 Russia Google Docs / reCAPTCHA lures
RemoteRogue Russia Compromised Zimbra servers

Its rapid adoption by both cybercriminal and advanced actors strongly suggests that the technique is operationally effective.

 

Common ClickFix Lures (2024–2026)

Current campaigns use:

  • Fake Cloudflare CAPTCHA
  • Fake browser crash/repair alerts
  • Fake video conferencing fixes (Zoom/Meet)
  • Fake PDF viewer plugin errors
  • Fake device registration prompts
  • Fake verified badge offers
  • Google Calendar invite lures
  • Discord-themed lures
  • Streaming-site malvertising pop-ups

These lures work because they exploit familiar user behavior. Many users have already been conditioned to trust “repair” or “verification” prompts when something appears broken.

Detection and Defense

Effective defence against ClickFix requires a mix of technical controls and user-focused controls.

  • Technical controls
    • Restrict PowerShell usage for non-admin users
    • Apply WDAC or AppLocker controls to script-capable binaries
    • Monitor for:
      • Resolve-DnsName followed by iex
      • SyncAppvPublishingServer.vbs spawning PowerShell
      • finger.exe initiating outbound connections
      • suspicious Startup LNK creation
      • RunMRU anomalies
  • Network controls
    • Block outbound DNS to public resolvers such as 8.8.8.8 where possible
    • Enforce use of corporate DNS resolvers
    • Monitor for large or unusual TXT record responses
  • Browser controls
    • Enforce browser extension allowlists
    • Detect cloned extensions through manifest mismatch
    • Flag sites displaying heavy glitching or Zalgo-character corruption
  • User awareness
    • No legitimate website should ask users to paste commands into Run, Terminal, or CMD
    • No browser error should require system-level command execution
    • Broken rendering, garbled text, or fake repair prompts should be treated as suspicious

Why This Is Important

ClickFix represents one of the most important shifts in social engineering in recent years because it breaks a core assumption behind many defensive controls: that actions initiated by the user are likely to be legitimate.

By persuading victims to execute commands themselves, ClickFix bypasses browser protections, weakens behavioral detection models, and abuses trusted binaries to deliver malware or steal tokens. It also continues to expand across platforms and attack surfaces, from Windows execution to browser-only OAuth theft and DNS-based malware delivery.

The technique’s adaptability is what makes it dangerous. It is not limited to one lure, one payload, or one operating system. It is a framework that keeps evolving to avoid whatever defensive layer is currently strongest.

Defenders who focus only on individual variants will always be reacting late. The more useful approach is to understand the overall ClickFix ecosystem and the execution patterns that make it work.

How Wizard Cyber Can Help Important

Wizard Cyber helps organizations detect and respond to evolving social-engineering threats such as ClickFix through a combination of threat intelligence, monitoring, and proactive security operations.

  • Threat Intelligence (CSI):
    We track emerging ClickFix variants, delivery methods, and actor adoption patterns to provide timely intelligence on how the technique is evolving.
  • Detection & Monitoring:
    We help organizations identify suspicious execution chains, LOLBin abuse, DNS-staged payloads, and token theft activity across Microsoft security platforms.
  • Security Awareness & Response Support:
    We translate technical tradecraft into practical user guidance, while also supporting incident response and containment when suspicious ClickFix-style activity is identified.
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 Ali Mahmoodi

Cyber Shield Intelligence (CSI) Team

Cyber Shield Intelligence (CSI) Team

Wizard Cyber’s first line of defense in proactive threat intelligence. CSI is dedicated to the identification, monitoring, and analysis of emerging cyber threats, including activity across the dark web, underground forums, and threat actor infrastructure. Leveraging advanced threat intelligence platforms, OSINT tools, and adversary tracking methodologies, the team provides actionable intelligence to anticipate attacks before they occur. With expertise in threat actor profiling, TTP mapping (aligned with the MITRE ATT&CK framework), and IOC enrichment, CSI equips clients with the critical insights needed to fortify defenses, mitigate risk, and stay ahead of evolving threat landscapes.

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