How to remove an Defender error

The free file information forum can help you determine if Defender.exe is a virus, trojan, spyware, or adware that you can remove, or a file belonging to a Windows system or an application you can trust.

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Defender.exe file information

The process known as SpySpotter System Defender or Defender Software or Jdrtuaqlaaeepmqnb or defender MFC Application or Algvkigeuolrsioyawb or Phourhaawoyanpufg or Urcbyubqaidmmuktppvcfiooszq

belongs to software SpySpotter or defender Application or © NEHLU Software or SpySpotter System Defender or Copyright © ZOSAL Software or © BGX Software or Project1 or Rlvr

by Oemtec LTD or Heaventools Software (www.heaventools.com) or Defender Software or G Data.

Description: Defender.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 7/XP are 1,411,720 bytes (33% of all occurrences), 897,024 bytes and 11 more variants.
There is an icon for this program on the taskbar next to the clock. It is not a Windows system file. The application is a hidden stealth process. Defender.exe is certified by a trustworthy company. File Defender.exe is a Verisign signed file. Defender.exe is able to record inputs, monitor applications, hide itself, manipulate other programs and connect to Internet. Therefore the technical security rating is 67% dangerous, however also read the users reviews.
If you experience any issues with installation of Defender.exe, you may also want to uninstall the associated program (Start > Control Panel > Add/Remove programs > SpySpotter).

Recommended: Identify Defender.exe related errors

If Defender.exe is located in a subfolder of "C:\Documents and Settings", the security rating is 47% dangerous. The file size is 703,488 bytes (16% of all occurrences), 954,368 bytes and 4 more variants. File Defender.exe is a file without information about the developer of this file. File Defender.exe is not a Windows core file. The program starts upon Windows startup (see Registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run, HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run, HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices). Defender.exe is able to record inputs, monitor applications and hide itself.

If Defender.exe is located in a subfolder of C:\, the security rating is 43% dangerous. The file size is 813,056 bytes (33% of all occurrences), 878,080 bytes or 1,411,720 bytes. The program has a visible window. File Defender.exe is not a Windows system file. Program starts upon Windows startup (see Registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run, HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run, HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices). Defender.exe is able to connect to Internet, record inputs, hide itself, monitor applications and manipulate other programs.

If Defender.exe is located in the folder C:\Windows, the security rating is 73% dangerous. The file size is 36,864 bytes.

If Defender.exe is located in the Windows Temp folder, the security rating is 54% dangerous. The file size is 41,984 bytes.

If Defender.exe is located in C:\, the security rating is 72% dangerous. The file size is 1,415,264 bytes.

Important: Some malware camouflages itself as Defender.exe, particularly when located in the c:\windows or c:\windows\system32 folder. Therefore, you should check the Defender.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.

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User Comments

If "defender.exe" is in subfolder "...\T-Online\Dialerschutz-Software" then it belongs to the T-Online protection software against dialer. In this case it is absolutely neccessary. You can test your "defender.exe" on the page "http://virusscan.jotti.org"; there your file is testet by the most popular scan software.
hardy475 (further information)

T-Online Dialerschutz Software
Neo

defender.exe is a virus!!, malware,spyware, add-aware. It self-installed when i was looking for some software. The icon is a blue and yellow shileld divided into four sections. I have removed it twice might need further looking into it.
Istec

Besides The Windows Product, defender.exe is a file that gets downloaded to your \username\Applicitation Data folder Its vector seems to be a browser expliot with these keys ( use Registry Mechanic, ) HCR\CLSID\{9E936C4C-..} DW29.tmp This tmp file is actually the payload delivery, that registers itself as a InprocServer32 Does the registry changes, and adds DEFENDER.EXE to the startup. ( Not the Windows one, in program files, but a trojan in the \username\Application Data folder ) ( and also it Defender, was dated in the future, contained TR/Crypt.XPACK.Gen Properties revealed, Size is 1,77
Killmofasta

Had it auto-install itself onto my computer while on nwvault.ign.com. It refused new processes from opening (including task manager) and closed down most non-essential processes. Required a reboot into safe mode and manual deletion, including the file itself (under my temporary files) and its registry key.
Dave Crane

Defender.exe is present under your users/"yourprofilename"/appdata/roaming folder and can be removed by going to safe mode and deleting the file along with its path in the startup. Use cccleaner- tools to remove the link from the startup. Download Dr. Web Antivirus from another PC and run it. it cleans the malware. Do all the steps in Safe mode only.
Saurabh

dangerous, disruptive
Lynn Hughes

2 Defender.exe files were associated with an infection I had from "system tool" in C:\Documents and settings.
newtonsbed

If defender.exe is located in C:\Documents and Settings\[UserName]\Application Data folder, then it is related to the rogue security software called Spyware Protection 2010.
Michael (further information)

I've got no T-Online-Software on my system and defender.exe self-installed and blocked all other software. Avira and other anti-virus-tools can't be used. On this way it is a virus or anything like that!

It installed itself in "c:\Documents and Settings\(user name)\Application Data" on my machine.
Swami Rabbitima

If in the user's Application Data directory and called 'Spyware Protection', it is definitely dangerous
B (further information)

It installed into Application Data directory. It is a spyware / malware. Rebooted in Safe Mode and deleted manually from drive and registry in CURRENTVERSION/RUN.
Clint

It screws up your operating system and shuts down your programs automatically. It is a virus and malware.
Joe

appears as Malware Protects - remove
BoBoo

It's a trojan and appeared in my .../All Users/Application Data folder. Keeps giving an annoying popup with a program called malware.exe. Fakes to be a maleware remover and wants you to buy stuff.
a2s

This program suddenly appeared while I was browsing the internet. It started scanning and began to advise me of a number of infections on my computer, which is protected by up to date security software. Some of the alleged infections are viruses that came out as long ago as 2003 and against which Windows Vista and Windows 7 (and Windows XP with the necessary updates applied) are immune. This software is at best trying to trick you into buying some unnecessary security and at worst may make your computer vulnerable to real problems.
Roderic

use safemode f8 on boot and malwarebytes.org in combi with vipre antivirus
corro

It self-installed on my system without notice - to me, that alone makes it dangerous
comogatas

Got rid of it in less than 5 minutes. 1. It's not legit, 2. Installs itself without permission (how rude! if someone suspicious walked into my house in such a manner, they should expect me to literally throw them out just as quickly as they snuck in, hence my swift removal of this program) 3. Screwed up my AVG settings (a 10 second fix). To fix it: If there is a fake-looking shield icon on your desktop (and you'd have to be an idiot not to realize its questionable presence) right click it and select "properties." Look at the program location, go to it, and simply delete the defender.exe file.
Aaron

I caught a defender.exe . It uploaded itself, killed my browser and anything that might shut it down, insisting I should run the "Malware Software" scan because said files are "infected by win32/blaster worm". I restarted the PC in Safe Mode and removed it that way. After my restarting my PC, spybot caught the registery change and I denied it. Don't see any other signs of it now. Sound like the same thing Istec saw!
~MAC~

defender.exe in the C:\Program Data folder is scareware, at least. If you get a multi colored shield in the task bar and get an "Infected" message when opening virtually any .exe file it's this "virus".
Exxoff

malware, page hihack, fake virus
Nick T.

It's malware, a scam
Rockachu2

EASY FIX - go into safemode where defender.exe can't open. In windows 7, delete the file "defender.exe" from Computer/C:/Users/ your user name /AppData/Roaming/defender.exe. That's it! If you have another operating system, download EMSA Win Startup Manager...the program will tell you the exact name and location of the "defender.exe" file...then just go into explorer and delete it (again, you must be in safe mode to do this).
davidrice

It is a Trojan. Don't be fooled by reviews of people who know just enough to be dangerous. Run Combofix then Maywarebytes. I included the links.
(further information)

Defender is a fake antivirus recently had a problem with it on one of my windows comps, biggest tell you can look for is printspool being disabled and not being able to restart it, also the program that starts saying you have other viruses eg blaster worm and what not. Another tell is that you wont be able to start any .exe file. manual removal of Defender.exe is needed via safe mode + file deletion, then antivirus scan in safe mode.
Des (further information)

There are probably more than one programs called Defender.exe, probably some safe ones, at least one dangerous one. I just got one in C:\Documents and Settings\All Users\Aplication Data. p/ I was able to get rid of it by pulling the plug of my computer, rebooting it, and deleting it before it activated itself and locked the Task Manager. p/ I'm still looking for other nasty things it may or may not have installed on my computer.
M

Spyware Trojan and who ever wrote the virus screwed my computer up started in safe mode and deleted the virus
WLowe

Summary: Average user rating of Defender.exe: based on 36 votes with 29 reviews.

4 users think Defender.exe is essential for Windows or an installed application. 1 user think it's probably harmless. 31 users think Defender.exe is dangerous and recommend removing it.

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