How to Remove CryptoDefense? (Step by Step Guides)

What is CryptoDefense?

CrytoDefense can be categorized as a dangerous ransomware that can encrypt critical files with strong encryption and it is practically impossible to decrypt them. It can compromise all versions of the Microsoft Windows Operating System including Windows XP, Windows Vista, Windows 7, and Windows 8. Once it infiltrate into your computer, CryptoDefense will create a How_Decrypt.txt file and a How_Decrypt.gif in every Windows folder that CryptoDefense encrypts. The two files that download alongside the CryptoDefense will contain instructions to access a fraudulent payment website that pay the fake ransom.

Once infected with CryptoDefense, it would scan your computer and encrypts data based on file-types and alert you to pay for money.  People who want to quickly recover theircritical files may compromise to the wire-puller and make payment as required. But there is no guarantee that your files will be decrypted.

How can your computer get infected with CryptoDefense?

CryptoDefense is always connected with spam emails attachment, dubious advertisements, malicious websites, false system upgrades and freeware downloads from suspicious sources. To avoid computer infection with ransomware infections such as CrytoDefense, express caution when opening email messages, since cyber criminals use various catchy titles to trick PC users into opening the infected attachments, for example, “Scanned Image from a Xerox WorkCentre”. Research shows that cyber criminals also use P2P networks and fake downloads containing bundled ransomware infections to proliferate CryptoDefense.

How to remove CryptoDefense ?

Manual steps:

Step 1. Boot your computer into Safe Mode with Networking

Restart your computer and keep pressing F8 key until Windows Advanced Options menu shows up, then using arrow key to select “Safe Mode with Networking” from the list and press ENTER to get into that mode.

Step 2. End up the running processes of CryptoDefense in Windows Task Manager.

Press Ctrl+Alt+Delete to open Windows Task Manager, find malicious processes and click End Process.

Step 3. Show hidden files and folders and remove files associated with the ransomware.

Click on the Start menu, type “folder options” into the search bar and click on “Folder Option” in the search results. In the pop-up dialog box, click the View tab and uncheck Hide protected operating system files (Recommended).


Step 4. Clean all the malicious files about this infection as below.

%AllUsersProfile%\Application Data\
%AllUsersProfile%\Application Data\random

Step 5. Delete related malicious registry entries

Open Registry Editor by pressing Window+R keys together. Then type “regedit”

Delete all the vicious registries as below:

HKEY_CURRENT_USER\Software\Microsoft\InternetExplorer\Main”Default_Page_URL” =
“http://www.<random>.com/?type=hp&ts=<timestamp>&from=tugs&uid=<hard drive id>”

Automatical steps with SpyHunter

With SpyHunter you can easily remove the infections of Trojans, worms, rootkits, rogues, dialers and spywares, so all you need to do is install it for immediate and ongoing protection.

Step 1. Click the following icon to download SpyHunter


Step 2. Double click on its file and then click the Run button to enter the installation procedure

Step 3. Choose the option I accept the EULA and Privacy Policy, and then click INSTALL button to continue the installation process.

Step 4. When complete the installation, open SpyHunter and click Scan Computer Now! button to start scan your computer.

Step 5. Then check the scan result and click on Fix Threats button to make your computer clean rapidly.

Software RegCure Pro to help you protect your computer

Step 1. Download RegCure Pro by Clicking on the icon below


Step 2. Double-click on the RegCure Pro program to open it, and then follow the instructions to install it.

Step 3. When complete the installation, open the application and choose which part you want to scan, and then click the button Click to Start Scan.

Step 4. When the System Scan is done, click Fix All button to correct all the security risks and potential causes of your computer slow performance.

If your computer unluckily get infected with CryptoDefense or other malicious programs, you’re supposed to get rid of it as soon as possible, or your computer may suffer from great damages. With SpyHunter, you can easily and effectively remove those nasty programs. If you want to optimize your computer, we recommend you to use RegCure Pro.

>>Click here to download SpyHunter <<

>>Click here to download RegCure Pro<<

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