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Title: Malware Defense
Type: Rogue Antispyware
Remove Malware Defense. Removal instructions
Also known as: MalwareDefense
Severity scale:
 (73 / 100)
 [Figure 1. Malware Defense graphical user interface] When running, Malware Defense will simulate a system scan and display a list of infections that can't be removed with a trial version of this program. In order to remove found infections you have to buy a full version of it. However, this is nothing more but a scam. Let's see why. First of all, MalwareDefense reports non-existing or legitimate Windows files as infections. Do not remove those files manually because you can seriously damage your computer. Some of the infections will be shown with the following names: Backdoor.Win32.Agent.ich, Rootkit.Win32.Agent.pp, Trojan.Dropper, Virus.Win32.Gpcode.ak, Email-Worm.Win32.NetSky.q, Net-Worm.Win32.Mytob.t and etc. Usually, Malware Defense detects those infections in main Windows OS directories. Of course, this malicious software detects the same infections on every infected computer. While running, Malware Defense will also display fake security alerts, notifications and error messages. This is a part of MalwareDefense scam. This virus will block particular software and display fake warning that states: There is unauthorized antivirus software detected on your computer. It is recommend you to remove it, otherwise it could conflict with Malware Defense. Press 'OK' to terminate [Program name] Other fake security alerts will state that your computer is not protected and that Internet Explorer, Windows Messenger or other programs are infected. While browsing the web you will likely see fake warnings claiming that particular websites are dangerous and may harm your PC. Malware Defense is not legitimate security software. It's a well-thought-out scam. If you fins that your computer is already infected, please use the manual removal guide stated below or download an automatic removal tool to remove Malware Defense from the system as soon as possible. Remember, do not purchase it. If you have already purchased this misleading program, contact your credit card company and dispute the charges. Related files: Uninstall Malware Defense.lnk, Malware Defense.lnk, Malware Defense Support.lnk, md.db, help.ico, Uninstall.exe, mdext.dll, mdefense.exe Malware Defense properties: • Changes browser settings • Shows commercial adverts • Connects itself to the internet • Stays resident in background Automatic Malware Defense removal: 
Tested and Confirmed! STOPzilla removes Malware Defense (2009-12-21 01:43:13)
Tested and Confirmed! Malwarebytes Anti Malware removes Malware Defense (2009-12-21 01:43:13)
We are testing Spyware Doctor's efficiency at removing Malware Defense
(2011-12-07 10:54:18)
Malware Defense manual removal:Kill processes:mdefense.exe uninstall.exe Delete registry values: HKEY_CLASSES_ROOT\*\shellex\ContextMenuHandlers\SimpleShlExt HKEY_CLASSES_ROOT\CLSID\{5E2121EE-0300-11D4-8D3B-444553540000} HKEY_CLASSES_ROOT\Folder\shellex\ContextMenuHandlers\SimpleShlExt HKEY_LOCAL_MACHINE\SOFTWARE\Malware Defense HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run "Malware Defense" Unregister DLLs: mdext.dll Delete files: mdefense.exe mdext.dll uninstall.exe help.ico md.db Malware Defense Support.lnk Malware Defense.lnk Uninstall Malware Defense.lnk Delete directories: C:\Program Files\Malware Defense %UserProfile%\Start Menu\Programs\Malware Defense 
Information added: 2009-12-21 01:43:13
Information updated: 2011-12-07 08:17:03 Additional resources related to Malware Defense:Attention: If you know or you have a website or page about Malware Defense removal, feel free to add a link to this list: add url |
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Spreading the knowledge:
It is very hard to fight Computer parasites alone in internet space. If you have a website we would be more than happy if you would help us to spread the knowledge about latest threats. You can help your
visitors to manage their Computer system manually without aditional expences. Knowledge is the power, we just need to spread it.
in safe mode working for hours without a prob.
could this be related ?
or another issue ?
help greatly apreciated
If something happens, I'll let you know....
stuck at this point.
Just want to say thanks.
One point for anyone out there...If your system keeps telling you that the mdext.dll is "in use or read/write protected" just change the name of the file. that seems to break the code/macro text running in the background...
Peace,
G
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