By Kristopher

How to Remove Zalon Trojan

Updated Mar 3, 2009

Zalon Trojan is a Trojan that sneaks through your system’s backdoor to infect your PC. Zalon Trojan allows a hacker to access your PC, and possibly control it.

Unless a zombie PC sounds like a good weekend, let me show you how to uninstall Zalon Trojan, for free.

Do You Have Zalon Trojan?

When you’re infected with badware — whether it’s Zalon Trojan, spyware, adware, a Trojan, or a virus — there are a few key symptoms. Have you noticed…

  • Slow computer performance: It just takes one parasite like Zalon Trojan to slow your computer dramatically. If your PC takes longer than usual to reboot, or if your Internet connection is unusually slow, you may be infected with Zalon Trojan.
  • New desktop shortcuts or switched homepage: Badware like Zalon Trojan may change your Internet settings to redirect your homepage to another site. Badware can even add desktop shortcuts to your PC.
  • Annoying popups: Badware can bombard your computer with popup ads, even when you’re not online. Through these popups, you may be tricked into downloading more spyware.

How to Remove Zalon Trojan Manually

Zalon Trojan warning Before we get started, you should backup your system and your registry, so it’ll be easy to restore your computer if anything goes wrong.

To remove Zalon Trojan manually, you need to delete Zalon Trojan files. Not sure how to delete Zalon Trojan files? Click here, and I’ll show you. Otherwise, go ahead and…

Stop Zalon Trojan processes:

mdmex2.exe

Get rid of Zalon Trojan registry values:

HKLMSOFTWAREMicrosoftWindowsCurrentVersionRun
SvcManager
mdmex2.exe

HKLMSYSTEMCurrentControlSetServicesSharedAccess
ParametersFirewallPolicyStandardProfileAuthorizedApplicationsList
system32mdmex2.exe
mdmex2.exe:*:Enabled:mdmex2

HKCUSoftwareMicrosoftCryptoSecure
Name
mdmex2.exe

Note: In any Zalon Trojan files I mention above, “%UserProfile%” is a variable referring to your current user’s profile folder. If you’re using Windows NT/2000/XP, by default this is “C:\Documents and Settings\[CURRENT USER]” (e.g., “C:\Documents and Settings\JoeSmith”). If you have any questions about manual Zalon Trojan removal, go ahead and leave a comment.

How Do You Remove Zalon Trojan Files?

Need help figuring out how to delete Zalon Trojan files? While there’s some risk involved, and you should only manually remove Zalon Trojan files if you’re comfortable editing your system, you’ll find it’s fairly easy to delete Zalon Trojan files in Windows.

How to delete Zalon Trojan files in Windows XP and Vista:

  1. Click your Windows Start menu, and then click “Search.”
  2. A speech bubble will pop up asking you, “What do you want to search for?” Click “All files and folders.”
  3. Type a Zalon Trojan file in the search box, and select “Local Hard Drives.”
  4. Click “Search.” Once the file is found, delete it.

How to stop Zalon Trojan processes:

  1. Click the Start menu, select Run.
  2. Type taskmgr.exe into the the Run command box, and click “OK.” You can also launch the Task Manager by pressing keys CTRL + Shift + ESC.
  3. Click Processes tab, and find Zalon Trojan processes.
  4. Once you’ve found the Zalon Trojan processes, right-click them and select “End Process” to kill Zalon Trojan.

How to remove Zalon Trojan registry keys:

Zalon Trojan warning Because your registry is such a key piece of your Windows system, you should always backup your registry before you edit it. Editing your registry can be intimidating if you’re not a computer expert, and when you change or a delete a critical registry key or value, there’s a chance you may need to reinstall your entire system. Make sure your backup your registry before editing it.

  1. Select your Windows menu “Start,” and click “Run.” An “Open” field will appear. Type “regedit” and click “OK” to open up your Registry Editor.
  2. Registry Editor will open as a window with two panes. The left side Registry Editor’s window lets you select various registry keys, and the right side displays the registry values of the registry key you select.
  3. To find a registry key, such as any Zalon Trojan registry keys, select “Edit,” then select “Find,” and in the search bar type any of Zalon Trojan’s registry keys.
  4. As soon as Zalon Trojan registry key appears, you can delete the Zalon Trojan registry key by right-clicking it and selecting “Modify,” then clicking “Delete.”

How to delete Zalon Trojan DLL files:

  1. First locate Zalon Trojan DLL files you want to delete. Open your Windows Start menu, then click “Run.” Type “cmd” in Run, and click “OK.”
  2. To change your current directory, type “cd” in the command box, press your “Space” key, and enter the full directory where the Zalon Trojan DLL file is located. If you’re not sure if the Zalon Trojan DLL file is located in a particular directory, enter “dir” in the command box to display a directory’s contents. To go one directory back, enter “cd ..” in the command box and press “Enter.”
  3. When you’ve located the Zalon Trojan DLL file you want to remove, type “regsvr32 /u SampleDLLName.dll” (e.g., “regsvr32 /u jl27script.dll”) and press your “Enter” key.

That’s it. If you want to restore any Zalon Trojan DLL file you removed, type “regsvr32 DLLJustDeleted.dll” (e.g., “regsvr32 jl27script.dll”) into your command box, and press your “Enter” key.

Did Zalon Trojan change your homepage?

  1. Click Windows Start menu > Control Panel > Internet Options.
  2. Under Home Page, select the General > Use Default.
  3. Type in the URL you want as your home page (e.g., “http://www.homepage.com”).
  4. Select Apply > OK.
  5. You’ll want to open a fresh web page and make sure that your new default home page pops up.

Zalon Trojan Removal Tip

Is your computer acting funny after deleting any Zalon Trojan files? I recommend using a program like File Recover from PC Tools. File Recover saves deleted files that otherwise can’t be recovered by Windows operating sytem.

Want to save time finding Zalon Trojan files? Download Spyware Doctor, let it find the Zalon Trojan files for you, and then manually delete Zalon Trojan files.

How Did You Get Zalon Trojan?

Wondering how Zalon Trojan ended up on your PC? If you’re infected with Zalon Trojan or other badware, perhaps you were using…

  • Freeware or shareware: Did you download and install shareware or freeware? These low-cost or free software applications may come bundled with spyware, adware, or programs like Zalon Trojan. Sometimes adware is attached to the free software to “pay” developers for the cost of creating the software, and more often spyware is secretly attached to free software to harm your computer and steal your personal and financial information.
  • Peer-to-peer software: Do you use a peer-to-peer (P2P) program or other application with a shared network? When you use these applications, you put your system at risk for unknowingly downloading an infected file, including applications like Zalon Trojan.
  • Questionable websites: Did you visit a website that’s of questionable nature? When you visit malicious sites that are fishy and phishy, badware may be automatically downloaded and installed onto your computer, sometimes including applications like Zalon Trojan. I recommend you use Firefox web browser, if you don’t already.

Understanding Zalon Trojan

If you’re infected with Zalon Trojan, you should know what you’re fighting. I’ll explain some definitions related to Zalon Trojan.

Zalon Trojan May Be a Trojan

Trojans install themselves secretly onto your computer, most often through your downloading a simple email attachment (often Trojans pose as harmless pictures). Most Trojans are able to gain complete control over your PC after installation. With this control, the Trojan and the hacker behind it may change your system settings, delete important files, steal your passwords, and watch your computer acitivity.

Infection Methods of Zalon Trojan and Other Trojans

Most Trojans infect your computer by tricking you into launching an infected file. This poisoned file could disguised as a small file, such as a jpeg or other email attachment, or it might be downloaded via a website or FTP.

  • Email: Your PC may be infected with a Trojan when you download infected email attachments, or sometimes even when you simply open an email. Many Trojans exploit security holes in Microsoft Outlook. You may be able to reduce your chances of getting infected by a Trojan by using a spam-blocking software.
  • Websites: Your PC may be infected with a Trojan when you visit a rogue site. Many Trojans exploit security holes in Internet Explorer web browser so that by simply visiting a website you may unknowingly download a Trojan.
  • Open ports: If your computer runs programs that provide file-sharing functions – such as AOL Instant Messenger (AIM), MSN Messenger, and more – you may open your computer up to vulnerabilities. Using file sharing through these applications may create a network that gives attackers the opportunity to remotely access your computer.

Zalon Trojan May Be a Backdoor

“Backdoor” describes a parasite that gets past your system’s normal means of authentication, remotely accesses your PC, or otherwise enters your system without being detected. Trojans and worms often use backdoor methods to access your computer and steal your personal and financial information and/or install more malware into your PC.