System Locked Password Pop-up Malware – What You Need To Know

A black window suddenly covers the desktop and announces that the system is locked. The computer still runs, but the message makes every option feel unavailable.

An email address and password box suggest someone can restore access. The screen is alarming, yet the visible lock may be only one part of the problem.

Overview

The lock screen is a warning, not the complete attack

The System Locked password scam appears as a full-screen black window claiming that computer access has been restricted.

The displayed panel asks for an unlock password and tells the victim to contact Supports@consultant.com when that password is unavailable.

That address is not a legitimate Windows support channel. Contacting it can expose the victim to further manipulation, payment demands, or false repair instructions.

The observed lock is connected with SnakeBiteAgent, a remote access trojan discovered during malware analysis.

Its visible message can resemble ordinary screen-locking extortion. However, the underlying program includes extensive surveillance, credential theft, banking fraud, and remote-control functions.

Simply closing the window, if possible, does not make the device trustworthy. The malware may continue operating behind the interface or return after a restart.

SnakeBiteAgent reaches far beyond browser password theft

Researchers identified roughly 274 methods inside the malware, indicating a broad collection of functions rather than a single-purpose locker.

It can target saved Chrome and Edge logins, stored payment cards, Firefox password files, and credentials managed by Windows.

A built-in phishing server can display counterfeit Gmail, Microsoft, and Yahoo sign-in pages locally. These pages collect credentials without requiring a visible external phishing website.

The trojan also watches for banking activity. Its code contains targeting related to 51 financial institutions, with many located in Southeast Asia.

Cryptocurrency users face additional risk. Clipboard manipulation can replace wallet addresses, while file searches can locate wallet data stored on the computer.

Keystrokes, clipboard entries, screenshots, microphone audio, and webcam images can all reveal information that never appears in a saved browser profile.

Remote tools help the attacker work invisibly

SnakeBiteAgent can create a hidden desktop and launch a browser, File Explorer, or Notepad outside the screen the victim sees.

That hidden environment lets an operator work through active sessions while the user remains distracted by the lock window.

Major warning signs include:

• A full-screen SYSTEM LOCKED demand from an unknown program.
• An unofficial support email instead of Windows recovery options.
• Repeated User Account Control prompts without a clear reason.
• Unexpected AnyDesk or MeshCentral installations.
• Security settings changing without authorization.
• Browser, camera, or microphone activity while idle.
• Copied wallet addresses changing after they are pasted.

The malware can install AnyDesk and MeshCentral for persistent remote access. It can also configure a proxy and search nearby systems from the compromised machine.

Attempts to weaken Microsoft Defender increase the danger. Policy changes, service interference, and repeated elevation requests can reduce resistance to later payloads.

A locked computer should be isolated before anyone follows the on-screen instructions. Treat the event as a possible security breach, not a support problem.

How The Scam Works

Step 1: A disguised file reaches the victim

SnakeBiteAgent may spread through malicious email attachments, business-themed archives, deceptive advertisements, pirated software, or counterfeit download pages.

An attachment might imitate an invoice, purchase order, shipping record, or account document. Cracked applications provide a different story but lead toward the same execution.

The exact lure can change because the operator needs only one successful launch. No single email subject defines every SnakeBiteAgent infection.

Compressed archives hide the program’s real type and can reduce automatic inspection. Password protection may be added so the email gateway cannot open the package.

Fake download pages exploit familiarity. A victim searching for a utility may receive an installer whose icon and filename resemble the expected product.

Nothing meaningful happens merely because an unwanted message arrived. The critical transition occurs when the concealed program runs on Windows.

Step 2: The program establishes control over Windows

After execution, the trojan gathers information about the machine, user, privileges, software, and available security controls.

It may request administrator rights through User Account Control. Repeated prompts wear down resistance and can persuade someone to approve access just to continue working.

Elevated permissions make it easier to alter security policy, install remote tools, create persistence, and reach protected credential sources.

The malware contains functions for interfering with Microsoft Defender services and policies. Those attempts may generate warnings before protection becomes impaired.

Persistence keeps the intrusion alive across logons or reboots. The user may restart, briefly regain the desktop, and then see malicious behavior return.

Early isolation is therefore valuable. Disconnecting the network removes the operator’s live channel while trained responders examine the remaining local activity.

Step 3: The SYSTEM LOCKED window captures attention

A full-screen black panel announces that access is restricted and asks for a password that the victim does not know.

The screen uses security language to resemble an administrative lock. Its purpose is to create helplessness and direct communication toward the attacker’s contact address.

Victims may assume Windows, an employer, or law enforcement created the warning. The unofficial email address exposes the lack of a legitimate recovery process.

Contact can lead to social engineering. The responder might request money, remote access, personal details, or additional commands disguised as repair steps.

Do not enter familiar passwords into the field. A trojan can record guesses and reuse them against email, workplace, or financial accounts.

Avoid forcefully experimenting with many keyboard combinations on a business endpoint. Preserve the screen and contact authorized support through another device.

Step 4: A hidden desktop conceals the operator’s actions

SnakeBiteAgent can create a separate desktop session that does not appear in the victim’s normal workspace.

Within that space, the attacker can open a browser, navigate folders, and use text tools while the physical screen shows something unrelated.

Screen streaming lets the operator monitor results. Mouse and keyboard control can turn the compromised computer into a remotely operated workstation.

Existing web sessions may already be authenticated. A hidden browser can access mail or services without requiring the stolen password to be entered again.

The attacker may install AnyDesk or MeshCentral as alternate access routes. Those legitimate products become dangerous when deployed without the owner’s knowledge.

A SOCKS proxy creates another capability. Criminal traffic can leave through the victim’s connection, making outside activity appear associated with that household or business.

Step 5: Credentials and personal data are harvested

The malware searches Chromium-based browsers for saved passwords and payment cards. It also seeks Firefox credential material and Windows-stored secrets.

A keylogger records what the victim types, including passwords that were never saved. Clipboard logging captures copied codes, addresses, and financial information.

Locally served sign-in pages imitate popular account providers. Because the page can appear on the infected computer, the browser address may not provide the usual warning.

Webcam and microphone access can collect conversations or images from the surrounding room. Screenshot capture documents whatever appears on the active display.

The combination is more damaging than one stolen password. It can expose recovery answers, authentication codes, personal identity information, and workplace conversations.

Credential rotation must account for that breadth. Changing only the password typed immediately before the lock appeared leaves many other accounts at risk.

Step 6: Financial activity is monitored and redirected

SnakeBiteAgent recognizes dozens of banking websites. That focus suggests operators can watch for financial sessions and prioritize information linked to accessible funds.

Bank logins, saved cards, and intercepted keystrokes can support unauthorized transfers or purchases. Compromised email may help criminals defeat fraud questions.

Clipboard replacement creates a separate theft route for cryptocurrency. The copied destination can be silently exchanged for a wallet controlled by the attacker.

Long wallet strings are difficult to compare visually. A victim may notice the alteration only after an irreversible transfer has been confirmed.

The trojan can also search storage for files associated with cryptocurrency wallets. Backups, recovery phrases, and exported keys require special attention during response.

Banks and exchanges should be contacted from a clean device. Quick reporting may allow holds, session revocation, card replacement, or investigation of pending transactions.

Step 7: The compromised machine becomes a continuing foothold

Remote administration, proxying, PowerShell execution, and local network scanning let the intruder pursue objectives beyond the original computer.

Nearby devices may expose shared folders or services. Workplace credentials can open cloud resources even when the internal network is not directly reachable.

Additional payloads can be downloaded as the operator changes plans. A data-theft event may later become ransomware, account fraud, or broader organizational compromise.

Security tampering makes repeated access more durable. Installed remote tools may remain after the original SnakeBiteAgent executable is detected.

That is why professional cleanup checks persistence, software inventory, accounts, sessions, and network evidence instead of deleting one suspicious file.

A rebuilt system should receive fresh credentials only after trusted protection is restored. Otherwise, the new secrets can be exposed to surviving components.

Why the Fake Support Address Is Dangerous

The address shown on the lock screen gives the incident a human endpoint. Victims may believe an administrator controls the password and can solve the emergency.

In reality, contacting an unverified address confirms that the infection reached an attentive person. It also gives the operator a direct route for pressure.

A reply can reveal the victim’s name, organization, language, emotional state, and willingness to pay. Every detail helps the criminal tailor the next demand.

The supposed technician may request gift cards, cryptocurrency, bank transfers, identity documents, or remote-control access. None of those requests should be followed.

They might also provide a command that appears to unlock the screen. Running it can install another payload, erase evidence, or weaken protection further.

Use a separate phone or computer to locate the genuine support channel. Employers should rely on their known helpdesk number, not anything displayed by malware.

Lock Screen, Credentials, Banking, and Device Checks

Document what the screen actually says

Photograph the message with another device, including the contact address and visible time. Do not type passwords, payment details, or personal information into its field.

Note what happened immediately beforehand. The attachment, installer, advertisement, or download source can guide containment and help locate other affected users.

Determine whether the computer is personally owned or managed by an employer. Corporate response procedures usually take priority over individual troubleshooting.

Assume credentials may extend beyond one browser

List accounts accessed during the suspected exposure period, including email, work services, banks, exchanges, shopping accounts, and password managers.

Check recent sign-ins from a clean device. Unknown locations, new recovery methods, forwarding rules, application passwords, or registered devices require immediate action.

Do not trust a password change performed on the compromised machine. Keylogging can capture the replacement before cleanup finishes.

Inspect financial and cryptocurrency activity carefully

Compare recent banking transactions, card authorizations, transfers, and payees. Ask the financial institution to flag the account for possible credential theft.

For cryptocurrency, verify every destination using a trusted source and multiple character groups. Review exchange sessions, withdrawal addresses, and API keys.

Move funds only with expert guidance when wallet secrets may be exposed. A hurried transfer from the infected device can send assets directly to the attacker.

Search for surviving remote-control components

Review installed applications, services, startup entries, scheduled tasks, Defender exclusions, firewall rules, and browser extensions.

AnyDesk and MeshCentral are legitimate tools, so antivirus may not remove them automatically. Their installation date and authorization history matter.

Business responders should inspect neighboring endpoints and identity logs. A remote trojan can use one workstation as a bridge into broader infrastructure.

How to remove this Malware

• STEP 1: Use Rkill to terminate malicious processes
• STEP 2: Uninstall malicious programs from Windows
• STEP 3: Reset browsers back to default settings
• STEP 4: Use Malwarebytes to remove Trojans and Unwanted Programs
• STEP 5: Use HitmanPro to remove Rootkits and other Malware
• STEP 6: Use AdwCleaner to remove Malicious Browser Policies and Adware
• STEP 7: Perform a final check with ESET Online Scanner
• STEP 8: Run the System File Checker (SFC) tool
• STEP 9: Run the Disk Check tool

STEP 1: Use Rkill to terminate malicious processes

In this first step, we will download and run Rkill to terminate malicious processes that may be running on your computer.

RKill is a program that was developed at BleepingComputer.com that attempts to terminate known malware processes so that your normal security software can then run and clean your computer of infections. When RKill runs it will kill malware processes and then removes incorrect executable associations and fixes policies that stop us from using certain tools.

1. Download Rkill.

   You can download RKill to your computer from the below link. When at the download page, click on the Download Now button labeled iExplore.exe. We are downloading a renamed version of Rkill (iExplore.exe) because some malware will not allow processes to run unless they have a certain filename.

   

   RKillStops malware processes so other tools can run

   Download RKillOpens the BleepingComputer download page in a new tab.

2. Run RKill.

   After downloading, double-click the iExplore.exe icon to kill malicious processes. In most cases, downloaded files are saved to the Downloads folder.
   The program may take some time to search for and end various malware programs.

   

   When it is finished, the black window will close automatically and a log file will open. Do not restart your computer. Proceed to the next step in this guide.

STEP 2: Uninstall malicious programs from Windows

In this second step, we will manually check if any unknown or malicious programs are installed on the computer. Sometimes adware and browser hijackers can have a usable Uninstall entry that can be used to remove them.

With the malicious programs removed, you’re ready for the next step in this guide.

STEP 3: Reset browsers back to default settings

In this step, we will remove spam notifications,  malicious extensions, and change to default any settings that might have been changed by malware.
Please note that a Chrome or Edge reset turns off all your extensions, and a Firefox refresh removes them. Your bookmarks and favorites stay intact. For each browser that you have installed on your computer, please click on the browsers tab below and follow the displayed steps to reset that browser.

STEP 4: Use Malwarebytes to remove Trojans and Unwanted Programs

In this next step, we will we will install Malwarebytes to scan and remove any infections, adware, or potentially unwanted programs that may be present on your computer.

Malwarebytes is one of the most popular and trusted anti-malware tools for Windows — and it’s completely free for removing infections. It catches threats that many antivirus programs miss, including adware, browser hijackers, and trojans. Follow the steps below to scan your PC and remove what Malwarebytes finds.

1. Download Malwarebytes

   Click the button below to download the latest version of Malwarebytes for Windows from the official source. The free version is all you need — it will scan your computer and remove adware, browser hijackers, and other malicious software at no cost.

   

   Malwarebytes Free for WindowsScans and removes malware at no cost

   Download MalwarebytesOfficial installer for Windows 11 and 10. Your download starts right away.Want real-time protection? See Malwarebytes Premium

2. Install Malwarebytes

   When the download finishes, open your Downloads folder and double-click the MBSetup file. If Windows shows a User Account Control pop-up, click “Yes” to allow the installation.

   

3. Follow the On-Screen Prompts to Install Malwarebytes

   The setup wizard will walk you through a few quick screens:

   • Choose where you’re installing the program — “Personal Computer” or “Work Computer” — then click Next.

     

   • Malwarebytes will now install on your device. This usually takes under a minute.

     

   • When installation is complete, the “Welcome to Malwarebytes” screen will open automatically.

     

   • On the final screen, click Open Malwarebytes to launch the program.

     

4. Optional: Check for rootkits with a Custom Scan

   You don’t need to change any settings for a normal scan. The standard Threat Scan in the next step is enough for most problems, so you can go straight to it.

   If you also want to check for rootkits, use a Custom Scan. In current versions of Malwarebytes, rootkit scanning is only available there:

   1. On the Scanner tile, click the three-dot menu and select Advanced Scan.
   2. Choose Custom Scan. In its options, check Scan for rootkits.
   3. Select your system drive (usually C:\) as the location to scan, then start the scan. It takes longer than a Threat Scan.
   4. When it finishes, review and quarantine the results as described in the steps below.

   Rootkit scanning isn’t available on Windows devices with ARM processors.

5. Start the Scan

   Click the blue Scan button. Malwarebytes will automatically update its virus database and start checking your computer for malware.

   

6. Wait for the Scan to Finish

   The scan checks your entire system for browser hijackers and other malicious programs, so it can take 5 to 20 minutes depending on your computer. Feel free to do something else — just check back occasionally to see the progress.

   

7. Quarantine the Detected Threats

   When the scan is done, you’ll see a list of everything Malwarebytes found — malware, adware, and potentially unwanted programs. Click the “Quarantine” button to remove all of them at once.

   

   Malwarebytes will now remove the malicious files and registry entries and move them safely into quarantine.

   

8. Restart Your Computer

   Some threats can only be fully removed after a reboot. If Malwarebytes asks you to restart, click Yes. Once you’re logged back in, Malwarebytes has finished removing the threats it found.

   

STEP 5: Use HitmanPro to remove Rootkits and other Malware

In this fifth step, while the computer is in normal back, we will download and run a scan with HitmanPro to remove Trojans, rootkits, and other malicious programs.

HitmanPro is a second-opinion scanner — it’s designed to catch what your main antivirus might have missed. Instead of relying on a single detection engine, it checks the behavior of files in the locations where malware usually hides. Anything suspicious is checked online, where it’s analyzed by several antivirus engines in HitmanPro’s Scan Cloud.

Good news: scanning is completely free, with no limits. You only need a license when it’s time to remove what was found — and even then, you can activate a free one-time 30-day trial to remove what it finds at no cost. The trial works once per computer. After that, removal needs a paid license, and the purchase screen shows the current price.

1. Download HitmanPro

   Click the button below to download HitmanPro. Remember — the scan is free, so you have nothing to lose by checking your PC.

   

   HitmanProSecond-opinion malware scanner from Sophos

   Download HitmanProFree scan. Removing threats needs the free 30-day trial. Opens the official HitmanPro page in a new tab.

2. Install HitmanPro

   When the download finishes, open your Downloads folder and double-click the file “hitmanpro_x64.exe”. (On 32-bit Windows 10, the file is named “hitmanpro.exe”.)

   

   If a User Account Control pop-up asks whether HitmanPro can make changes to your device, click “Yes” to continue.

   

3. Follow the On-Screen Prompts

   On the HitmanPro start screen, click “Next” to begin the system scan. No lengthy setup required — it goes straight to work.

   

   

4. Wait for the Scan to Finish

   HitmanPro will now check your computer for malicious programs. This usually takes just a few minutes thanks to its cloud-based scanning.
   

5. Review the Results and Click “Next”

   When the scan is done, HitmanPro will show you everything it found. Click “Next” to remove the detected threats.

   

6. Click “Activate Free License”

   To remove the malicious files, click the “Activate free license” button. This starts your free 30-day trial — no payment details needed — and unlocks the full cleanup.
   

   When the removal is complete, HitmanPro will show a summary of everything it cleaned. Click Next, then click Reboot if prompted. If there’s no reboot prompt, click Close. Then check whether the problems you noticed have stopped. If they come back, save the HitmanPro log and ask for help in our forum.

STEP 6: Use AdwCleaner to remove Malicious Browser Policies and Adware

In this next step, we will use AdwCleaner to remove malicious browser policies and unwanted browser extensions from your computer.

AdwCleaner is a free on-demand scanner that specializes in adware, browser hijackers, and unwanted toolbars — the exact threats that mainstream antivirus programs often miss. It also includes tools that repair the damage malware leaves behind, like hijacked browser settings and malicious policies. It’s a quick scan that’s well worth running.

1. Download AdwCleaner

   Click the button below to download AdwCleaner — it’s free, portable, and requires no installation.

   

   Malwarebytes AdwCleanerRemoves adware and unwanted programs at no cost

   Download AdwCleanerOpens the official download page in a new tab.

2. Run AdwCleaner

   Open your Downloads folder and double-click the file named “adwcleaner.exe“. There’s no installation — the program starts right away.
   

   If Windows asks whether you want to allow AdwCleaner to run, click “Yes“. When the license agreement appears, click I agree to continue.

   

3. Leave “Reset Chrome policies” off unless you need it

   AdwCleaner can reset Chrome policies, the settings that malware sometimes uses to lock your browser so you can’t change it back. This option removes every Chrome policy, including legitimate ones set by an employer, a school, or parental-control software, so leave it off for a normal scan.

   AdwCleaner applies this option only if you run Basic Repair at the end of the cleanup. Malwarebytes advises running Basic Repair only when a support agent asks you to, and it also runs every other repair action that is turned on in the same list. If this is your own personal PC and chrome://policy in Chrome lists policies you didn’t set, ask for help in our forum instead. On a work or school computer, ask the IT administrator.

4. Start the Scan

   Click “Dashboard” on the left side of the window, then click the “Scan Now” button.

   

5. Wait for the Scan to Finish

   AdwCleaner will now check your computer for adware and other malware. This usually takes only a few minutes — it’s one of the fastest scanners around.

   

6. Quarantine the Detected Threats

   When the scan finishes, AdwCleaner lists everything it found. Review the list and uncheck any program you installed on purpose and want to keep, then click Next. If AdwCleaner also found preinstalled software, it shows that list next. Review it the same way, then click “Quarantine“. Older versions show the Quarantine button on the first list, as in the image below.

   

7. Click “Continue” to Finish the Cleanup

   Save any open work first — AdwCleaner needs to close your open programs before it can clean. When you’re ready, click the “Continue” button.
   

   AdwCleaner will now move the selected items to quarantine. If it asks you to restart your PC, allow it. When you’re back in Windows, AdwCleaner may offer a Basic Repair. Click Skip Basic Repair. Malwarebytes recommends running Basic Repair only when a support agent asks you to. Then check whether the problems you noticed have stopped.

STEP 7: Perform a final check with ESET Online Scanner

This step involves installing and running a scan with ESET Online Scanner to check for any additional malicious programs that may be installed on the computer..

ESET Online Scanner is a free second-opinion scanner that performs a deep, full-system check for viruses, trojans, rootkits, and other malware. We use it as the final step because it’s thorough and can catch threats the earlier scans missed. A clean result is a good sign, but no scanner can guarantee that a computer is malware-free.

1. Download ESET Online Scanner

   Click the button below to download ESET Online Scanner.

   

   ESET Online ScannerFree one-time malware scan from ESET

   Download ESET Online ScannerOpens the official download page in a new tab.

2. Run the Installer

   When the download finishes, open your Downloads folder and double-click “esetonlinescanner.exe“.
   

3. Install ESET Online Scanner

   On the start screen, select your language from the drop-down menu and click Get started.

   

   On the Terms of use screen, click Accept.
   

   Choose your preferences for the Customer Experience Improvement Program and the Detection feedback system (either choice is fine), then click Continue.
   

4. Start a Full Scan

   Click Full Scan — this checks your entire computer, not just the common hiding spots.

   

   Select Enable for Detection of Potentially Unwanted Applications — this lets ESET catch adware and bundled junk programs, not just viruses. Then click Start scan.

   

5. Wait for the Scan to Finish

   ESET will now check every file on your computer. Because it’s a full scan, this can take a while — often an hour or more, depending on how much data you have. Leave it running in the background and check on it from time to time.

   

6. Review the Results

   When the scan completes, the Found and resolved detections screen appears. Detected threats are usually cleaned and quarantined automatically. Click View detailed results to see exactly what was removed, and ask for help in our forum if any item could not be cleaned.
   

   If ESET found nothing, restart your computer and check whether the problems you noticed have stopped. If they continue, ask for help in our forum.

STEP 8: Run the System File Checker (SFC) tool

In this step, we will use System File Checker (SFC) tool to detect and repair files that may have been corrupted by malware.

The SFC tool scans all protected system files on your computer and replaces any files that are corrupt or damaged with a cached copy that is stored in a compressed folder at %WinDir%\System32\dllcache. By running the SFC tool, you can help ensure that your system is functioning properly and fix any issues.

1. Open Command Prompt as Administrator.

   To open the Command Prompt as an administrator in Windows, type “cmd” in the search bar and then right-click on the Command Prompt result and select “Run as administrator” as shown in the image below.
   
   A User Account Control (UAC) prompt will appear asking for permission to allow the program to run. Click “Yes”.

2. Type “sfc /scannow”.

   You will now be presented with a black screen called the ‘Administrator: Command Prompt’. On this screen, type “sfc /scannow” to scan for and repair any corrupt system files.
   

3. Restart your computer.

   Restart your computer if sfc /scannow repaired files. System File Checker may or may not prompt you to restart but even if it doesn’t, you should restart anyway.

4. Run again sfc /scannow.

   Run again sfc /scannow to check if the files were repaired.

STEP 9: Run the Disk Check tool

As a final step, we will utilize the Disk Check tool, commonly referred to as “chkdsk,” to identify and resolve any issues that were caused by malware.

This tool checks your hard disk for errors and can fix any issues it finds. To use the Disk Check tool, you will need to open the command prompt and enter the “chkdsk” command followed by the drive letter (e.g., “chkdsk C:”). You can also add the “/f” flag to the command to instruct the tool to fix any errors it finds. By running the Disk Check tool, you can help ensure that your hard disk is functioning properly and fix any issues that may be causing high disk usage.”

1. Open Command Prompt as Administrator.

   To open the Command Prompt as an administrator in Windows, type “cmd” in the search bar and then right-click on the Command Prompt result and select “Run as administrator” as shown in the image below. A User Account Control (UAC) prompt will appear asking for permission to allow the program to run. Click “Yes”.

2. Type “chkdsk /f /r”

   You will now be presented with a black screen called the ‘Administrator: Command Prompt’. On this screen, type “chkdsk /f /r” to repair any errors on your hard drive.

3. Restart your computer

   The Disk Check tool may require you to restart your computer in order to complete the scan and repair process. Type “Y” and click on Enter, then restart the computer. A CHKDSK command can take a long time, especially when performed on larger drives. Once it’s done, however, it will present a summary of results including total disk space, byte allocation, and, most importantly, any errors that were found and corrected.

What to Do if You Have Fallen Victim to This Scam

1. Cut the network connection. Disconnect Ethernet and Wi-Fi without signing into accounts. This interrupts remote control, proxy traffic, and additional downloads.
2. Use another device for assistance. Contact your employer’s real helpdesk or a qualified technician. Never write to the address displayed by the lock screen.
3. Preserve evidence before cleanup. Record the screen, file source, timing, and actions taken. Organizations may need memory, disk, and network evidence.
4. Scan through trusted recovery methods. Update Windows protection and run Malwarebytes. A severe remote-access infection may require erasing and rebuilding the computer.
5. Secure accounts from a clean system. Change unique passwords, revoke sessions, remove unknown recovery options, and enable multifactor authentication.
6. Call financial providers promptly. Lock cards, review transfers, protect online banking, and tell exchanges that login information or wallet material may have been stolen.
7. Remove unauthorized access paths. Check AnyDesk, MeshCentral, proxies, startup items, and security exclusions. AdGuard can reduce malicious browsing exposure but cannot disinfect Windows.
8. Monitor for continuing misuse. Watch mailbox rules, identity alerts, credit reports, banking activity, and cryptocurrency accounts after the device is restored.

Do not blame yourself for reacting to a frightening screen. These attacks deliberately remove time, context, and normal choices from the moment.

Recovery is strongest when the device, identities, and financial accounts are handled together. Treat each as part of one incident.

Frequently Asked Questions

Is the SYSTEM LOCKED message from Microsoft?

No. Microsoft does not direct Windows users to Supports@consultant.com for an unknown unlock password. The message is displayed by malicious software.

Will entering a password remove the infection?

Even if the window disappears, the underlying remote access functions may remain. Entering a familiar password can also expose that credential.

Can SnakeBiteAgent steal banking information?

Yes. Its functions target browser credentials, saved cards, keystrokes, financial websites, and other information useful for account fraud.

Why are AnyDesk and MeshCentral involved?

They are legitimate remote-management tools that criminals can install for persistence. Their presence is suspicious when the owner or administrator never approved them.

Should I pay someone who answers the support email?

No. Payment does not restore trust in the computer, and engagement can produce more demands or dangerous instructions.

Is reinstalling Windows always necessary?

Not in every incident, but remote-control malware can leave several persistence routes. A clean rebuild is often the safest choice after professional assessment.

The Bottom Line

The System Locked window is not merely an annoying password prompt. With SnakeBiteAgent present, saved logins, banking sessions, wallets, cameras, and nearby systems may face exposure.

Disconnect first, seek help through a verified channel, and recover accounts from a clean device. Never let the attacker’s contact address define the response.