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What is stub.exe?

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 stub.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.

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Stub.exe file information

Windows Task Manager with stub
Stub.exe process in Windows Task Manager

The process known as Conduit or Client Installer or Setup Stub belongs to software AVG Download Manager or Install ToolBox SDK or 180solutions Client Installer by Conduit (www.conduit.com) or AVG Technologies CZ, s.r.o (www.freeavg.com) or 180solutions (en.wikipedia.org/wiki/Zango_(company)) or Symantec (www.symantec.com) or AVG Technologies (www.freeavg.com).

Description: Stub.exe is not essential for Windows and will often cause problems. Stub.exe is located in a subfolder of "C:\Documents and Settings". Known file sizes on Windows 8/7/XP are 459,264 bytes (33% of all occurrences), 1,021,208 bytes, 959,768 bytes, 534,120 bytes or 144,384 bytes. http://www.file.net/process/stub.exe.html 
Stub.exe is not a Windows core file. The file is a file with no information about its developer. Stub.exe is a Verisign signed file. The file is certified by a trustworthy company. The application listens for or sends data on open ports to a LAN or the Internet. Stub.exe is able to monitor applications. Therefore the technical security rating is 29% dangerous, however you should also read the user reviews.

Recommended: Identify stub.exe related errors

External information from Paul Collins:

Important: Some malware camouflages itself as stub.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the stub.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.

Score

User Comments

Only appears in my process list when installing or downloading files for AVG upon ending this process avg_avwt_stb_all_8_22.exe will also be exited and stop a download necessary to install AVG anti virus
  Mark Simpson  
installer for Paperport for scanners. Install shield software corporation
  Paul  
I have no idea how I got this but it sems to keep me from opening my internet browser and it also slows down my online downloads(Torrent)
  Kruxus  
AVG Download Manager
  Ryan  
It has came up while installing AVG, Once termianted so was the installation.
  JJ  
I have many stub.exe files, 000stub.ee,hpzstub.exe ,etc
  Bill Mc  
Stub.exe is part of the new AVG anti-virus interface (among other legitimate programs)...
  tester  
Seems to be related to AVG's installer/downloader as well
   
stub.exe is a management file of avg anti virus
  Big Luigi   (further information)
stub.exe runs while installing AVG anivirus
  Bob Clark  
AVG uses it, as does few other programs
   
Seems to be connected to a vicious Trojan Horse
  Reeve Tuesti  
AVG installer. Closes when the installer for AVG Closes
  Cyantist  
was quite probably installed while updating DivX Player; Stub.exe was in a sub-folder of DivX Player e.g. C:\ProgramData\DivX\Symantec\SymInstallStub.exe and installed "PC Tools .."
  Lucas  
It is in the ApplicastionData/Real/Upgrade/, cannot delete.
  Larry  
wanted to connect to internet without asking
  Maid  

Rating chart

Summary: Average user rating of stub.exe: based on 14 votes with 16 user comments. 3 users think stub.exe is essential for Windows or an installed application. 5 users think it's probably harmless. 2 users think it's neither essential nor dangerous. 3 users suspect danger. One user thinks stub.exe is dangerous and recommends removing it. 2 users don't grade stub.exe ("not sure about it").


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Best practices for resolving stub issues

A clean and tidy computer is the key requirement for avoiding problems with stub. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic 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 resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off doing a repair of your installation, or in the case of Windows 8, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the stub.exe process on your computer, the following programs have proven to be helpful: Security 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. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.



Other processes

stub.exe [all]