How to remove Vanta Stealer from the operating system

What kind of malware is Vanta Stealer?

Vanta Stealer is an information stealer written in Python and designed to harvest credentials, session tokens, gaming account data, and cryptocurrency wallet details from infected computers.

Once executed, the malware targets saved browser passwords and cookies, Discord and Telegram session files, Steam, Valorant, Roblox, and Minecraft account data, and stored cryptocurrency wallet recovery phrases. It packages everything into a compressed archive and sends it to the attacker's server.

As detailed in research published by Point Wild's Lat61 Threat Intelligence Team, the malware's modular design and use of obfuscation suggest an author focused on evasion and broad data coverage.

Vanta Stealer overview

Vanta Stealer is packaged as a standalone Windows executable using PyInstaller. This wraps the Python script into a single file that runs without requiring Python to be installed. Inside, the actual malicious code is further shielded by PyArmor bytecode obfuscation, making it significantly harder for antivirus tools to inspect the payload.

On execution, the malware downloads a dedicated browser credential extractor at runtime and then runs a series of collection modules targeting different applications. Once all data has been gathered, Vanta Stealer compiles a summary inventory, compresses everything into a ZIP archive, and transmits it to the attacker's server.

Exfiltration happens over HTTP POST, with the malware confirming a successful upload by checking the server's response code. It also accounts for oversized archives, handling the error gracefully rather than crashing, which points to a backend infrastructure with defined upload limits.

Targeted data and applications

Vanta Stealer focuses its browser harvesting on Chromium-based browsers, pulling saved passwords, cookies, and stored payment card details. These credentials can give attackers direct access to banking portals, email accounts, and any other service where the victim has saved their login.

On the messaging and gaming side, the stealer extracts Discord tokens and enriches them with account details such as subscription status and billing information. It also targets Telegram Desktop session files and collects account artifacts from Steam, Valorant, Roblox, and Minecraft.

Cryptocurrency wallet files and wallet seed phrases are also in scope, giving an attacker the ability to drain crypto holdings entirely. Mullvad VPN configuration files are targeted as well, and the malware specifically searches for documents that contain wallet recovery phrases.

Vanta Stealer also takes desktop screenshots and captures images from the webcam before sending everything to the server, giving the attacker a visual snapshot of the victim's environment at the moment of infection.

Obfuscation and evasion

The malware relies on a two-layer obfuscation strategy. PyInstaller first bundles the Python code into a compiled executable, concealing the source from casual inspection. PyArmor then applies bytecode-level protection to the inner code, adding another barrier for security researchers and automated scanners.

Together, these layers make it considerably harder for both automated scanners and manual analysts to understand what the malware is doing without specialized tools. Python-compiled executables are increasingly used in malware precisely because this packaging-plus-obfuscation combination sidesteps many common signature-based detection methods.

Conclusion

Vanta Stealer can quietly drain a broad set of sensitive data in a single infection event: browser credentials, payment details, gaming sessions, Telegram files, and cryptocurrency wallet recovery phrases. Victims often have no warning until accounts are compromised or funds have already disappeared.

Given the breadth of data it targets and the obfuscation it uses to avoid detection, Vanta Stealer should be treated as a serious threat. Anyone who suspects an infection should run a reputable security scanner immediately to confirm and clean the device.

More examples of stealers are WARDEN, KuinaExtractor, and CastleStealer.

How did Vanta Stealer infiltrate my computer?

Point Wild's research notes that no confirmed delivery chain was directly observed for Vanta Stealer. That said, the malware's targeting of gaming platforms and its Python-based tooling are consistent with distribution through game cheats, cracked utilities, and trojanized installers that gamers and software pirates frequently seek out.

Phishing emails with malicious attachments are another likely vector, along with fake software update pages and malicious code repositories. SEO poisoning and malvertising can also steer unsuspecting users to download sites hosting trojanized installers.

In general, threats of this kind circulate on peer-to-peer networks, unverified file-sharing channels, and messaging platforms where pirated content is exchanged. The disguise varies, but the common thread is a convincing-looking file that the victim has no obvious reason to distrust before running it.

How to avoid installation of malware?

Download software only from official developer websites and trusted storefronts. Avoid game cheats, cracks, key generators, and tools shared in forums, Discord servers, or unofficial repositories. Keep your operating system and all applications updated, as attackers often exploit known vulnerabilities in outdated software.

Be cautious with unexpected emails and their attachments, especially if the sender urges you to run a file or enable something. Treat any unsolicited download link with suspicion, even if it appears to arrive from a contact you know. If you believe that your computer is already infected, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate infiltrated malware.

How to remove malware manually?

Most trojan infections can be removed by running a full system scan with Combo Cleaner. The full manual procedure below is for cases where automatic removal failed, where you want to verify a scan caught everything, or where the threat has multiple persistence points.

Tools you'll need

Combo Cleaner Antivirus 7-days free trial

Recommended primary scanner. VB100 certified. The 7-day free trial is available.

Microsoft Defender Offline Free · built-in

Built into Windows. Boots to a clean environment to catch rootkits.

Process Explorer Free

From Microsoft Sysinternals. Better than Task Manager - shows full paths and signatures.

Autoruns Free

From Microsoft Sysinternals. Lists every place malware can persist on your system.

Microsoft Safety Scanner (MSERT) Free

Official Microsoft on-demand scanner. Always-current signatures - expires every 10 days.

Phase 1~ 5 min

Contain - limit the damage

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1

Disconnect from the network

30 secNo tool needed

Unplug your Ethernet cable and turn off Wi-Fi. If you're on a laptop, the airplane-mode key works fastest.

Why this matters

Many trojans exfiltrate data - saved browser passwords, banking sessions, screenshots - and accept remote commands. Cutting the network stops both immediately. Keep it disconnected until Phase 4.

2

Boot into Safe Mode with Networking

3 min

Safe Mode loads a minimal set of drivers and stops most malware from auto-running. "With Networking" lets you download tools - re-enable Wi-Fi only after you've booted in.

Windows 11

Open Settings → System → Recovery. Click Restart now next to Advanced startup.

Your computer will restart into the "Choose an option" menu. Click Troubleshoot → Advanced options → Startup Settings → Restart. After the second reboot, press 5 or F5.

Windows 10

Click the Windows logo, hold Shift, click the Power icon and choose Restart. In the Choose an option screen, click Troubleshoot → Advanced options → Startup Settings → Restart. Press F5.

Windows 8

Go to the Start Screen, type Advanced, select Settings → Advanced startup options → Restart now → Troubleshoot → Advanced options → Startup settings → Restart → F5.

Note: Windows 8 reached end-of-life in January 2023 - running on it puts you at much higher risk of reinfection.

Windows 7

Click Start → Shut Down → Restart → OK. As the system boots, press F8 repeatedly until the Windows Advanced Options menu appears, then choose Safe Mode with Networking.

Note: Windows 7 reached end-of-life in January 2020 - running on it puts you at much higher risk of reinfection.

Phase 2~ 15 min

Identify - find what's hiding

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3

Inspect running processes with Process Explorer

Tool: Process Explorer5 min

Download Process Explorer from Microsoft Sysinternals. Run it as Administrator. Click Options → Verify Image Signatures and View → Lower Pane View → DLLs.

Sort by "Verified Signer." Anything unsigned running from %AppData%, %LocalAppData%, %Temp%, or %ProgramData% is suspicious. Right-click → Properties to see the full image path. Right-click → "Search Online" to look up unfamiliar process names.

Why not just Task Manager

Task Manager hides full file paths, doesn't show digital signatures, and groups processes in ways that make malware easy to miss. Process Explorer is the same tool Microsoft engineers use.

4

Map every persistence point with Autoruns

Tool: Autoruns 14.x10 min

Download Autoruns. Right-click Autoruns.exe and choose Run as administrator - without elevation, Autoruns can't inspect protected registry hives.

In the menu, open Options → Hide Microsoft Entries and Options → Hide Empty Locations, then click Refresh.

Modern trojans don't just live in startup. Walk through these tabs and look for unsigned or unfamiliar entries:

• Logon - classic Run/RunOnce keys
• Scheduled Tasks - frequent hiding spot, especially tasks with PowerShell, MSHTA, or rundll32 actions
• Services - unsigned services in non-Microsoft folders
• WMI - Event Subscriptions are a stealthy persistence mechanism (MITRE T1546.003)
• Image Hijacks - Image File Execution Options "Debugger" abuse
• AppInit - DLLs loaded into every GUI process
• Browser plug-ins - unsigned add-ons across all installed browsers

Pro tip

Right-click any suspicious entry → "Jump to Image" to see the actual file. Right-click → "Search Online" opens VirusTotal for the file hash. Don't delete yet - just write down the file paths and entry names. We'll remove them after the scans.

5

Check the hosts file and DNS settings

3 minBuilt into Windows

Trojans often redirect bank, antivirus, and update domains to attacker-controlled servers by editing the hosts file or DNS settings.

Hosts file: Open Notepad as Administrator and open C:\Windows\System32\drivers\etc\hosts. Legitimate entries are commented with #. Any uncommented IP-to-domain mapping is suspicious - especially redirects for microsoft.com, windowsupdate, or your bank.

DNS settings: Open Command Prompt as Administrator and run ipconfig /all. Confirm your DNS servers point to your ISP, your router, or a known public resolver (Cloudflare 1.1.1.1, Google 8.8.8.8). Then open Settings → Network & internet → [your adapter] → DNS server assignment and verify both DNS and DNS over HTTPS (DoH) settings haven't been hijacked.

Why this matters

A clean PC with hijacked DNS is still a compromised PC. You'll think you're at chase.com and you'll be at the attacker's clone.

Phase 3~ 60-90 min

Remove - three scans, one cleanup

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No single antivirus catches everything. The order below is intentional: offline scan first (catches rootkits before Windows fully loads), then on-demand scanners on the running system, then manual cleanup of anything they missed.

6

Run Microsoft Defender Offline

Tool: Built into Windows15 min

Reboot to normal Windows. Open Windows Security → Virus & threat protection → Scan options. Select Microsoft Defender Antivirus (offline scan) and click Scan now. Your computer will restart into a stripped-down environment and scan before the full operating system loads.

Why this comes first

Rootkits and bootkits hide from any scanner running on the same Windows session that's already infected. A pre-boot offline scan sees the disk before the malware can hide itself.

Recommended antivirus

Combo Cleaner

VB100 certified. Includes anti-trojan, registry/persistence scanning, anti-spyware in one pass. The 7-day free trial is available.

Download Combo Cleaner

7

Run Combo Cleaner full system scan

Tool: Combo Cleaner20-40 min

Install Combo Cleaner and run a full system scan (not the quick scan). Let it complete fully, review the detected threats, and apply the recommended actions. Combo Cleaner will quarantine known trojans and registry persistence.

8

Run Microsoft Safety Scanner as a second-opinion scan

Tool: Microsoft Safety Scanner15 min

Download Microsoft Safety Scanner (MSERT.exe), Microsoft's free on-demand tool. The binary expires every 10 days, which means every download has the latest signatures. Run a full scan after Combo Cleaner to catch anything one engine alone might miss.

Why a second scan

Different scanning engines catch different threats. Running an additional Microsoft scan after Combo Cleaner is the single most underused verification step in malware removal.

9

Manually remove anything still listed in Autoruns

Tool: Autoruns10 min

Reopen Autoruns. Anything you flagged in Step 4 that's still present hasn't been caught by the automated scans. For each remaining suspicious entry: right-click → Delete in Autoruns (this removes the persistence registration), then navigate to the file path and delete the actual file. Empty the Recycle Bin.

Important

Some malware files reappear after deletion because something else on the system recreates them. If you delete a file and it returns within minutes, you have a remaining persistence point that Autoruns didn't show - usually a service or scheduled task running under SYSTEM. Re-run the scans from Steps 6-8 or proceed to a clean install (see end of guide).

Phase 4~ 15 min

Recover - restore browsers and security

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10

Reset browsers and clear notification permissions

5 min

Trojans and adware frequently hijack browsers - change the default search engine, install rogue extensions, or grant themselves notification permissions to keep displaying scam pop-ups even after the malware is gone.

• Chrome: visit chrome://settings/reset and click "Restore settings to their original defaults." Then visit chrome://settings/content/notifications and remove any unfamiliar sites.
• Edge: visit edge://settings/reset. Then check edge://settings/content/notifications.
• Firefox: open about:support and click Refresh Firefox (Firefox uses "Refresh," not "Reset"). Then check Settings → Privacy & Security → Permissions → Notifications.

Review installed extensions in each browser and remove anything you don't recognize, especially extensions you didn't install yourself.

11

Re-enable Defender, Tamper Protection, and update everything

10 min

Many trojans disable security software. Open Windows Security → Virus & threat protection → Manage settings and confirm Real-time protection, Cloud-delivered protection, and Tamper Protection are all turned on. Tamper Protection prevents malware from disabling Defender silently.

Then run Windows Update (Settings → Windows Update → Check for updates) and update your browsers and applications. The infection vector that let the trojan in originally usually involves outdated software.

Phase 5~ 15 min + 7 days

Verify & secure

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12

Change passwords from a clean device

20 min⚠ Critical

If the trojan was an info-stealer (Lumma, RedLine, Vidar, and similar are extremely common), assume every password saved in your browser is compromised. Change them from a different, known-clean device - your phone is fine if it's not infected.

Recommended order:

1. Primary email first - it's the recovery hub for everything else
2. Banking and financial accounts
3. Password manager master password (if you use one)
4. Social media, shopping, and remaining accounts

Where available, enable phishing-resistant multi-factor authentication (passkeys / FIDO2 hardware keys / authenticator apps) - SMS-based MFA is bypassable by sophisticated attackers.

13

Verify the clean and monitor for 7 days

5 min + 1 week monitoring

Reconnect to the network and run one final full scan with Combo Cleaner. Open Task Manager (Ctrl + Shift + Esc) and switch to the Startup apps tab - confirm nothing suspicious has reappeared.

Over the next 7 days, watch for symptom recurrence: unexpected high CPU usage, unknown processes returning, browser redirects, or pop-ups. If anything returns, you missed a persistence point and the procedure needs to be repeated - or you may have a deeper compromise that requires a clean install.

When to clean install Windows instead

Manual removal isn't always the right answer. Reinstalling Windows from scratch is the only way to be 100% certain when:

• The malware reappears after every removal attempt
• A bootkit or UEFI rootkit was detected (this class of threat sits below the operating system and survives a normal Windows reinstall)
• A confirmed credential-theft trojan ran with administrator privileges (Lumma, RedLine, Vidar) - the system likely has multiple unknown payloads
• The PC is used for online banking, business email, or anything where partial doubt isn't acceptable

A clean install is a 30-60 minute process: Windows 11 reinstall via Settings → System → Recovery → Reset this PC → Remove everything → Cloud download. Back up documents to external storage first, scan the backup with Combo Cleaner before restoring it, and reinstall applications fresh - never restore them from a backup of the infected system.

Important: Manual removal requires advanced computer skills. If you're not confident identifying system files from malicious files, run an automated scan with Combo Cleaner and Windows Defender and stop there - that path catches the vast majority of consumer trojans without the risk of breaking Windows by deleting the wrong file.

Frequently Asked Questions (FAQ)

My computer is infected with Vanta Stealer malware, should I format my storage device to get rid of it?

Formatting will remove Vanta Stealer, but it will also erase every file on the drive. It should be treated as a last resort. Running a reputable security tool such as Combo Cleaner is the safer first step, since it can remove the malware without destroying your data.

What are the biggest issues that Vanta Stealer malware can cause?

Vanta Stealer can expose saved browser passwords, payment details, Discord and Telegram sessions, gaming credentials, and cryptocurrency wallet recovery phrases to attackers. The consequences can include account takeovers, identity theft, financial fraud, and the total loss of any crypto assets stored in affected wallets.

What is the purpose of Vanta Stealer malware?

Vanta Stealer is built to harvest as much sensitive data as possible from an infected device in a single session and transmit it to the attacker. Targets include browser credentials, payment data, gaming and messaging platform accounts, and cryptocurrency wallet files and seed phrases.

How did Vanta Stealer malware infiltrate my computer?

Vanta Stealer is suspected to spread through phishing emails, trojanized game cheats and mods, fake software installers, malicious code repositories, and malvertising. Downloading files from unofficial or unverified sources is the most common risk factor for this type of infection.

Will Combo Cleaner protect me from malware?

Yes. Combo Cleaner can detect and remove Vanta Stealer and most other known threats. A full system scan is recommended to ensure nothing has been missed, particularly since stealers can download or drop additional files during execution.