How to remove VietCredCare malware from the operating system

Trojan

Also Known As: VietCredCare information stealer

Damage level:

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What kind of malware is VietCredCare?

VietCredCare, an information-stealing tool previously unidentified, has been circulating since at least August 2022. This software, distributed through a stealer-as-a-service model, is believed to be managed by individuals proficient in Vietnamese. Typically, malware of this type is utilized for harvesting sensitive data.

VietCredCare malware

More about VietCredCare

VietCredCare is programmed to automatically sift through credentials and session cookies from Facebook.com, with a particular focus on identifying accounts actively running advertisements and holding a positive balance of Meta ad credits, the currency utilized for Facebook ads.

This capability is likely intended to assist malicious actors in gaining control of Facebook profiles associated with prominent businesses and organizations. Such profiles typically have a large subscriber base, providing a broad audience for spreading politically motivated content or conducting financially motivated phishing attacks, scams, or the sale of compromised credentials to other cybercriminals.

While VietCredCare can be employed against individuals without discrimination, it appears that its primary targets are individuals managing Facebook profiles for prominent business pages, aiming to wrest control of these profiles. Furthermore, the operators of VietCredCare have integrated Telegram Bot functionalities to extract compromised data from infected devices.

Like many information-stealing tools, VietCredCare operates under the stealer-as-a-service model, enabling developers to rent or sell the malware to other cybercriminals via the underground market.

Threat Summary:
Name VietCredCare information stealer
Threat Type Information Stealer
Detection Names Avast (Win32:TrojanX-gen [Trj]), Combo Cleaner (Trojan.GenericKD.71726743), ESET-NOD32 (A Variant Of MSIL/PSW.Agent.RRZ), Kaspersky (HEUR:Trojan-PSW.MSIL.Stealer.gen), Microsoft (Trojan:Win32/Wacatac.B!ml), Full List (VirusTotal)
Symptoms Info stealers are designed to stealthily infiltrate the victim's computer and remain silent, and thus no particular symptoms are clearly visible on an infected machine.
Distribution methods Phishing websites delivered via email and social media, malicious online advertisements, software 'cracks', pirated software, infected USB drives, or similar channels.
Damage Stolen Facebook accounts, monetary loss, identity theft, and privacy breaches, etc.
Malware Removal (Windows)

To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Combo Cleaner.

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To use full-featured product, you have to purchase a license for Combo Cleaner. 7 days free trial available. Combo Cleaner is owned and operated by RCS LT, the parent company of PCRisk.com.

Possible damage

In conclusion, VietCredCare represents a significant threat in the realm of cybercrime, with its ability to target Facebook accounts, particularly those associated with prominent businesses and organizations. Its sophisticated functionalities, including the automatic filtering of credentials and session cookies, coupled with the utilization of Telegram Bot functionalities for data exfiltration, underscore its malicious intent and potential for widespread damage.

More examples of information-stealing malware are Srry, Elusive, and Asuka.

How did VietCredCare infiltrate my computer?

VietCredCare is probably disseminated via phishing websites that are promoted through social media posts and messaging platforms. These websites purported to provide legitimate software downloads, with threat actors camouflaging the payload under the guise of programs such as Acrobat Reader, MS Excel, or Word.

Other possible methods for malware distribution include emails with malicious attachments files or links, drive-by downloads from compromised or malicious websites, malvertising (malicious ads), infected USB drives or removable media, vulnerabilities in outdated software, and social engineering tactics, such as fake software updates or fake antivirus alerts.

How to avoid installation of malware?

Ensure your operating system, antivirus program, and other applications are always up to date. Exercise discretion when opening email attachments or clicking links, particularly in unsolicited or unexpected emails from unfamiliar or suspicious sources. Avoid downloading software or files from untrusted websites, and be wary of pop-ups, ads, and other content on shady pages.

Ensure your operating system, antivirus program, and other applications are always up to date. Exercise discretion when opening email attachments or clicking links, particularly in unsolicited or unexpected emails from unfamiliar or suspicious sources. Avoid downloading software or files from untrusted websites, and be wary of pop-ups, ads, and other content on shady pages.

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.
Built into Windows. Boots to a clean environment to catch rootkits.
From Microsoft Sysinternals. Better than Task Manager - shows full paths and signatures.
From Microsoft Sysinternals. Lists every place malware can persist on your system.
Official Microsoft on-demand scanner. Always-current signatures - expires every 10 days.
Phase 1~ 5 min
Contain - limit the damage

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.

Run Windows 11 in Safe Mode with Networking
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.

Run Windows 10 in Safe Mode with Networking - press F5 at the Startup Settings screen
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

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.

Process Explorer showing a suspicious unsigned process running from %AppData%
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.

Autoruns 14.x with Hide Microsoft Entries enabled showing the Logon and Scheduled Tasks tabs
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

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.

Combo Cleaner full scan results showing detected threats
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

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

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.

Verifying malware removal in the Windows 11 Task Manager Startup apps tab

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 VietCredCare malware, should I format my storage device to get rid of it?

Formatting your storage device is a viable method to eliminate malware such as VietCredCare since it wipes out all data, including any malicious software. Nonetheless, this should only be used as a final option, given that it will erase all files and programs. Prior to resorting to formatting, it is advisable to attempt removal using trusted antivirus or anti-malware tools like Combo Cleaner.

What are the biggest issues that malware can cause?

The biggest problems that malware can cause include data theft, data encryption, financial loss, system damage, identity theft, additional infections, and disruption of operations.

What is the purpose of VietCredCare?

The purpose of VietCredCare is to steal sensitive information, particularly credentials and session cookies from Facebook accounts, with a focus on targeting accounts associated with businesses and organizations that run advertisements.

How did VietCredCare infiltrate my computer?

VietCredCare likely infiltrated your computer through phishing sites opened via social media or links in emails received from cybercriminals. Also, this malware may be delivered via malicious ads, software vulnerabilities, infected USB drives, P2P networks, third-party downloaders, pirated software, cracking tools, and similar avenues.

Will Combo Cleaner protect me from malware?

Combo Cleaner has the ability to identify and eradicate nearly all malware. It is important to note that advanced malware often conceals itself deeply within the system. Thus, users are advised to run a full system scan to ensure thorough detection and removal.

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Tomas Meskauskas

Tomas Meskauskas

Expert security researcher, professional malware analyst

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for pcrisk.com since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats.

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