ResolverRAT Virus

ResolverRAT is a potent and stealthy form of malware classified as a Remote Access Trojan (RAT). It is designed to give cybercriminals full remote control over infected systems, enabling them to spy on users, extract sensitive data, and install additional malicious programs. Active in recent targeted campaigns, especially in March 2025, ResolverRAT has been used against healthcare and pharmaceutical entities—underscoring its capacity for high-profile damage.

What makes ResolverRAT especially dangerous is its robust anti-detection mechanisms. It employs DLL side-loading, a method that tricks systems into executing a legitimate application that has been hijacked to load a malicious payload. Furthermore, it features code obfuscation, in-memory execution, and anti-analysis tools to avoid detection by cybersecurity professionals and automated sandboxes.

Once installed, ResolverRAT begins exfiltrating data in a fragmented, low-detection manner by splitting anything over 1 MB into 16 KB chunks. It seeks out a broad spectrum of data types—from personal credentials and files to corporate documents, financial information, cryptocurrency wallets, VPN configs, and even gaming or social media account details. This highlights the threat’s utility in cyber-espionage, identity theft, and large-scale data breaches.

Moreover, ResolverRAT isn’t just a stealer. Like many sophisticated RATs, it has a multi-functional design and may perform tasks typical of keyloggers, screen recorders, cryptominers, and even downloaders that bring in additional malware like ransomware. Its persistence methods ensure it stays active on the system even after reboots or user attempts to uninstall unknown software.

If undetected, this RAT can act as a backdoor for long-term surveillance or secondary infections—making it an extremely high-risk malware threat.

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ResolverRAT Threat Summary

Category	Details
Threat Name	ResolverRAT Virus
Threat Type	Trojan, Remote Access Trojan, Remote Administration Tool
Detection Names	Avast (Win32:MalwareX-gen [Bd]), Combo Cleaner (Gen:Trojan.Mardom.IN.10), ESET-NOD32 (A Variant Of MSIL/Kryptik.AMFY), Kaspersky (HEUR:Backdoor.MSIL.Crysan.gen), Microsoft (Trojan:MSIL/Jalapeno.AH!MTB)
Associated Emails	Not specified, but likely used in phishing or spear-phishing campaigns
Symptoms of Infection	Typically stealthy – no visible symptoms; possible performance slowdowns
Distribution Methods	Infected email attachments, malicious ads, social engineering, software cracks
Damage	Identity theft, stolen passwords, corporate data breach, botnet inclusion
Danger Level	High
Removal Tool	SpyHunter – Download Here

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Manual Trojan Malware Removal Guide

Step 1: Boot into Safe Mode

1. Restart your computer.
2. Before Windows starts, press the F8 key (or Shift + F8 on some systems).
3. Select Safe Mode with Networking from the Advanced Boot Options menu.
4. Press Enter to boot.

This prevents the Trojan from running and makes it easier to remove.

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Step 2: Identify and Stop Malicious Processes

1. Press Ctrl + Shift + Esc to open Task Manager.
2. Go to the Processes tab (or Details in Windows 10/11).
3. Look for suspicious processes using high CPU or memory, or with unfamiliar names.
4. Right-click on the suspicious process and select Open File Location.
5. If the file is in a temporary or system folder and looks unfamiliar, it is likely malicious.
6. Right-click the process and choose End Task.
7. Delete the associated file in File Explorer.

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Step 3: Remove Trojan-Related Files and Folders

1. Press Win + R, type %temp%, and press Enter.
2. Delete all files in the Temp folder.
3. Also check these directories for unfamiliar or recently created files:
   • C:\Users\YourUser\AppData\Local\Temp
   • C:\Windows\Temp
   • C:\Program Files (x86)
   • C:\ProgramData
   • C:\Users\YourUser\AppData\Roaming
4. Delete suspicious files or folders.

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Step 4: Clean Trojan Malware from Registry

1. Press Win + R, type regedit, and press Enter.
2. Navigate to the following paths:
   • HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
   • HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
3. Look for entries launching files from suspicious locations.
4. Right-click and delete any entries you don’t recognize.

Warning: Editing the registry can harm your system if done improperly. Proceed with caution.

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Step 5: Reset Browser Settings

Google Chrome

1. Go to Settings > Reset Settings.
2. Click Restore settings to their original defaults and confirm.

Mozilla Firefox

1. Go to Help > More Troubleshooting Information.
2. Click Refresh Firefox.

Microsoft Edge

1. Go to Settings > Reset settings.
2. Click Restore settings to their default values.

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Step 6: Run a Full Windows Defender Scan

1. Open Windows Security via Settings > Update & Security.
2. Click Virus & threat protection.
3. Choose Scan options, select Full scan, and click Scan now.

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Step 7: Update Windows and Installed Software

1. Press Win + I, go to Update & Security > Windows Update.
2. Click Check for updates and install all available updates.

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Automatic Trojan Removal Using SpyHunter

If manually removing the Trojan seems difficult or time-consuming, using SpyHunter is the recommended method. SpyHunter is an advanced anti-malware tool that detects and eliminates Trojan infections effectively.

Step 1: Download SpyHunter

Use the following official link to download SpyHunter: Download SpyHunter

For full instructions on how to install, follow this page: Official SpyHunter Download Instructions

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Step 2: Install SpyHunter

1. Locate the SpyHunter-Installer.exe file in your Downloads folder.
2. Double-click the installer to begin setup.
3. Follow the on-screen prompts to complete the installation.

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Step 3: Scan Your System

1. Open SpyHunter.
2. Click Start Scan Now.
3. Let the program detect all threats, including Trojan components.

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Step 4: Remove Detected Malware

1. After the scan, click Fix Threats.
2. SpyHunter will automatically quarantine and remove all identified malicious components.

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Step 5: Restart Your Computer

Restart your system to ensure all changes take effect and the threat is completely removed.

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Tips to Prevent Future Trojan Infections

• Avoid downloading pirated software or opening unknown email attachments.
• Only visit trusted websites and avoid clicking on suspicious ads or pop-ups.
• Use a real-time antivirus solution like SpyHunter for ongoing protection.
• Keep your operating system, browsers, and software up to date.

Conclusion

ResolverRAT is not just another malware—it’s a highly evasive cyberweapon capable of penetrating corporate and individual targets alike. With advanced evasion tactics and wide-ranging capabilities, it remains a severe threat to digital privacy and organizational security. Swift detection and removal are crucial to mitigate the risk of personal and financial data theft. If you suspect your system may be infected, using a reliable tool like SpyHunter is a vital step toward safeguarding your information.