What is plink.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 plink.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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Plink.exe file information

The process known as Command-line SSH, Telnet, and Rlogin client belongs to software PuTTY suite or SecurSurf or SurfSolo by Simon Tatham (

Description: Plink.exe is not essential for the Windows OS and causes relatively few problems. The file plink.exe is located in a subfolder of "C:\Program Files" or sometimes in a subfolder of C:\. Known file sizes on Windows 10/8/7/XP are 294,912 bytes (40% of all occurrences), 282,624 bytes or 319,488 bytes. 
The program is not visible. The program listens for or sends data on open ports to a LAN or the Internet. The file is not a Windows core file. It is a file with no information about its developer. Therefore the technical security rating is 68% dangerous, however you should also read the user reviews.

Uninstalling this variant: There is a possibility to uninstall the software SecurSurf or SurfSolo using the Uninstall a Program function of Windows Control Panel (Windows: Start, Settings, Control Panel, Uninstall a Program).

Recommended: Identify plink.exe related errors

If plink.exe is located in a subfolder of the user's profile folder, the security rating is 42% dangerous. The file size is 403,863 bytes. The program is not visible. The plink.exe file is not a Windows system file.

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


User Comments

SSH Tunnel Client
Metropipe Tunneler - Anonym surfen
  maphiro   (further information)
Is in use by SoloSurf from Securstar. Solosurf let make you annonymous surfing in the Web. - Wird von SoloSurf von Securstar zum annonymen Surfen verwendet.
  Tipman   (further information)
Ipswitch WhatsConnected or WhatsUpGold utility

Summary: Average user rating of plink.exe: based on 5 votes with 4 user comments. 3 users think plink.exe is essential for Windows or an installed application. One user thinks it's probably harmless. One user thinks it's neither essential nor dangerous.

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Best practices for resolving plink issues

A clean and tidy computer is the key requirement for avoiding problems with plink. 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 repairing of your installation or, for Windows 8 and later versions, 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 plink.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

plink.exe [all]