Defender.exe has been classified by several anti-virus and malware scanners as a trojan (TROJ_FAKEAV.SM49, TROJ_FAKEAV.SMIH, Trojan-Dropper.Win32.FrauDrop.xyrw, and Trojan-PSW.Win32.Papras.bit), a malicious computer virus - software designed to infect and spread through computer networks. This process can remotely execute programs and run commands, use a keylogger to track keyboard entries, send data across networks and spread copies of itself. If this file is found in "C:\Documents and Settings\[UserName]\Application Data" or "C:\Windows\System32", it may be regarded as highly dangerous. This process may also damage personal data by renaming, editing, or corrupting user files. It is highly recommended to use a dedicated anti-virus or anti-malware software to scan and clean the infected computer.
The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the defender.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.
The process known as Defender Software or Jdrtuaqlaaeepmqnb or defender MFC Application or Algvkigeuolrsioyawb or Phourhaawoyanpufg or Urcbyubqaidmmuktppvcfiooszq
appears to belong to software defender Application or © NEHLU Software or Copyright © ZOSAL Software or © BGX Software or Rlvr
by Heaventools Software (www.heaventools.com) or Defender Software or G Data.
Description: Defender.exe is not essential for Windows and will often cause problems. Defender.exe is located in a subfolder of "C:\Program Files" or sometimes in C:\.
Known file sizes on Windows 10/8/7/XP are 1,411,720 bytes (65% of all occurrences), 1,063,488 bytes and 5 more variants.
There is an icon for this program on the taskbar next to the clock. It is not a Windows system file. The file has a digital signature. The process is a hidden stealth process. Defender.exe is a Verisign signed file. It can change the behavior of other programs or manipulate other programs. Defender.exe is able to record keyboard and mouse inputs, monitor applications, hide itself, manipulate other programs and connect to the Internet. Therefore the technical security rating is 72% dangerous; however you should also read the user reviews.
Recommended: Identify defender.exe related errors
Important: Some malware also uses the file name defender.exe, for example TROJ_FAKEAV.SM49 or TROJ_FAKEAV.SMIH (detected by TrendMicro), and Rogue:Win32/FakeRean (detected by Microsoft). 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.
A clean and tidy computer is the key requirement for avoiding problems with defender. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.
Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.
To help you analyze the defender.exe process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.