Most antivirus programs identify Patch.exe as malware—e.g. Avast identifies it as Win32:NetBus-AO [Trj] or Win32:Malware-gen, and Microsoft identifies it as Backdoor:Win32/Netbus.A or Backdoor:Win32/Netbus.1_70.
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Description: Patch.exe is not essential for Windows and will often cause problems. Patch.exe is located in the C:\Windows folder.
Known file sizes on Windows 10/8/7/XP are 494,592 bytes (50% of all occurrences) or 472,576 bytes.
There is no description of the program. The file is an unknown file in the Windows folder. The program is not visible. The application is loaded during the Windows boot process (see Registry key: MACHINE\Run). It is not a Windows core file. Patch.exe is able to record keyboard and mouse inputs and hide itself. Therefore the technical security rating is 80% dangerous; however you should also read the user reviews.
Recommended: Identify Patch.exe related errors
If Patch.exe is located in a subfolder of the user's profile folder, the security rating is 74% dangerous. The file size is 54,688 bytes. There is no file information. The program is not visible. The file is a Verisign signed file. It is not a Windows core file.
If Patch.exe is located in a subfolder of Windows folder for temporary files, the security rating is 14% dangerous. The file size is 935,184 bytes. The program has a visible window. Patch.exe is not a Windows core file. Patch.exe is able to monitor applications. Patch.exe appears to be a compressed file.
External information from Paul Collins:
There are different files with the same name:
Important: You should check the Patch.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.
The following programs have also been shown useful for a deeper analysis: ASecurity Task Manager examines the active Patch process on your computer and clearly tells you what it is doing. Malwarebytes' well-known Banti-malware tool tells you if the Patch.exe on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.
A clean and tidy computer is the key requirement for avoiding PC trouble. 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.