How Did I Get Infected With System Defender?

System Defender and badware just like it commonly end up on your computer due to the following causes:

• Freeware or shareware: Many times freeware or shareware is secretly bundled with spyware. It is how the developers earn money for the time they spent. It’s a sneaky, but it’s fairly common.
• 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 mistakenly downloading an infected file, including software like System Defender.
• Questionable websites: Malicious or questionable websites can install programs such as System Defender through security holes and automatic downloads, such as video codecs. If you feel your browser is unsafe, consider using the newest version of Mozilla Firefox, Google Chrome, or Internet Explorer.

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What are Common Signs of System Defender Infection?

• Slow Computer Performance
• Annoying Pop-Ups
• Taskbar Warnings
• Strange new icons and desktop backgrounds
• Internet Browsing Re-directs and Hijacks
• System Crashes
• High Pressure Marketing Tactics to “Purchase Full Version” of software

How Do I Remove System Defender?

There are two methods. The manual way and the automatic way. First – if you want to try and remove it manually (and I only recommend this to IT Professionals!) you must disable all related system processes, adjust all related system DLL files and registry files in the LOCAL_HKEY_USER folder, block all related websites, and delete all program files with the System Defender name.

System Defender Manual Removal Instructions:

Stop System Defender Processes:

Remove System Defender Registry Keys:

Remove System Defender Files and Folders:

Delete System Defender DLLs:

Note: In any System Defender 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 System Defender removal, go ahead and leave a comment.

How to delete System Defender 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 System Defender file in the search box, and select “Local Hard Drives.”
4. Click “Search.” Once the file is found, delete it.

How to stop System Defender 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 System Defender processes.
4. Once you’ve found the System Defender processes, right-click them and select “End Process” to kill System Defender.

How to remove System Defender registry keys:

Warning! Your registry is a vital key to your Windows system. If you plan on making any edits to your registry, you absolutely must backup your registry first in case anything goes wrong. Be forewarnd that a mistake when editing your registry can result in a computer that no longer boots up. These instructions are designed for IT Professionals and PC Experts.

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 System Defender registry keys, select “Edit,” then select “Find,” and in the search bar type any of System Defender’s registry keys.
4. As soon as System Defender registry key appears, you can delete the System Defender registry key by right-clicking it and selecting “Modify,” then clicking “Delete.”

How to delete System Defender DLL files:

1. First locate System Defender 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 System Defender DLL file is located. If you’re not sure if the System Defender 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 System Defender DLL file you want to remove, type “regsvr32 /u SampleDLLName.dll” (e.g., “regsvr32 /u jl27script.dll”) and press your “Enter” key.

If you wish to restore any System Defender DLL file you deleted, type “regsvr32 DLLJustDeleted.dll” (e.g., “regsvr32 jl27script.dll”) into your command box, and hit the “Enter” key.

Did System Defender 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.google.com”).
4. Select Apply > OK.

System Defender Removal in 10 Minutes:

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Automatic Removal. It’s What I Choose.

The risks of manual removal make automatic removal an easy decision for me. I don’t have enough time in the day to manually remove every infection that I come across; it’s way too time consuming, and risky. It’s easy to miss a file if you’re not careful, and it’s easy to adjust the wrong file and be left with a paperweight for a computer.