How to Remove JS: Downloader CWS from Windows Computer?

What is JS: Downloader CWS?

JS: Downloader CWS is a risky Trojan horse associated with the JS.Downloader family of threats. This dangerous Trojan is often received as an attachment on an email or instant message. Please be careful when receiving email or instant messages and make sure if they are safe before you open them.

If you unintentionally get this infection, you should prepare for the troubles because once executed, the JS: Downloader CWS has the capability of replicating itself and infect other files and programs, leaving your computer runs weirdly and slowly. Besides, it may corrupt or delete your important PC data and steal your personal information. Moreover, it may download malicious files from Web sites and execute them without your permission, and then you will get more infections and experience a lot of pests such as pop-up ads, fake alerts, system errors, system crashes, etc.

Generally, the JS: Downloader CWS comes stealthily and will cause a series of troubles. If you want your PC stay safe and prevent infections, you should keep your antivirus or antimalware updated and turn on your firewall to protect your PC. The following part will offer a useful guide to remove JS: Downloader CWS. If you need some advice, you can read on to continue the removal.

How to Remove JS: Downloader CWS Completely and Safely?

Here are some methods that can help you remove JS: Downloader CWS. The manual method only provides some general steps for the common issues. So if you encounter any difficulty, you are recommended to use SpyHunter Real-Time Malware Protection and Malware Removal Tool.

Here is a removal video for the similar issue. Please watch it for reference.

(If you can not get rid of this trojan virus, please move to the removal guides below.)

Guide 1: Manually Remove JS: Downloader CWS by Yourself

Step 1. Restart your computer in Safe mode.

Keep tabbing F8 key before the Windows start-up logo appears until you get to Advanced Options, select Safe Mode, and hit ENTER.



Step 2. End up the running processes of this trojan virus in Windows Task Manager.

Press Ctrl+Shift+Esc or Ctrl+Alt+Delete to open Windows Task Manager, find malicious processes and click End process.



Step 3. Navigate to Registry Editor and clean up all trojan virus entries.

Press Win+ R key at and same time to open Run Commend Box. Open Registry Editor by typing “regedit” in Runbox and clicking OK.



Look through the registry entries and find out all listed harmful items. Right click on them and terminate the related entries.



HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run "<random>" = "%AppData%\<random>.exe"
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run "<random>" = "%AppData%\<random>.exe"
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Attachments "SaveZoneInformation"=1
HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Winlogon "Shell" = "%AppData%\<random>.exe"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msseces.exe "Debugger"="svchost.exe"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MpCmdRun.exe
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MpUXSrv.exe
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MSASCui.exe

Step 4. Show hidden folders and files.

Windows XP

Start button > Control Panel > Appearance and Personalization > Folder Options > Show Hidden Files or Folders



Remove the checkmark from Hide extensions for known file types. And remove the checkmark from Hide protected operating system files (Recommended).

Windows 7 / Vista

Libraries > Folder Options > Tools > Show Hidden Files or Folders



Remove the checkmark from Hide extensions for known file types and Hide protected operating system files (Recommended)

Windows 8 /8.1

Windows Explorer > View > Hidden Items



Delete JS: Downloader CWS associated files.

%AppData%
%CommonAppData%
%temp%
C:\Windows\Temp\
C:\Program Files\

Step 5. Check your removal and optimize your PC with RegCure Pro.

Any mistake in your manual removal may lead to your PC inoperative. You can download and install RegCure Pro to scan and optimize your PC. It is packed with the tools you need to boost your PC's speed and performance.

• Cleans away Windows registry errors
• Ejects active viruses, spyware and other malware
• Stops unneeded processes and startup items
• Deletes privacy files that could contain confidential info
• Find software to open files

1. Click the icon to download RegCure Pro.



2. Click "Yes" to run the profile.



3. After installation, you can scan your computer for errors by making a system scan.



4. After scanning, choose the items you want to clean and fix.

Guide 2: Automatically Remove Ramnit with Powerful Removal Tool

SpyHunter is an adaptive real-time spyware detection and removal tool for your PC. You can remove Ramnit with this powerful tool. Please read the instruction below.

(Please be at ease for SpyHunter, since it will never bundle with any programs and it can get along with existing security programs without any conflicts.)

Step 1. Click the download button below.



Step 2. After finishing downloading, click Run to install SpyHunter step by step.



Step 3. After finishing installing, SpyHunter will scan and diagnose your entire system automatically.



Step 4. As the scanning is complete, all detected threats will be listed out. Then, you can click on “Fix Threats” to remove all of the threats found in your system.



Warm Reminder:

Ramnit is a threatening worm virus that should be removed from your PC as soon as possible. If you need a quick and safe way out of this trojan virus, please feel free to Download and Install SpyHunter - Powerful Security Tool >>