Most antivirus programs identify sysnet.exe as malware—for instance Kaspersky identifies it as Trojan-Downloader.Win32.Small.ikv, and TrendMicro identifies it as Mal_DLDER.
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Description: Sysnet.exe is not essential for Windows and will often cause problems. The sysnet.exe file is located in a subfolder of "C:\Program Files".
The file size on Windows 10/8/7/XP is 77,824 bytes.
The software has no file description. The program has no visible window. The file is not a Windows core file. Sysnet.exe is able to hide itself and monitor applications. Therefore the technical security rating is 50% dangerous.
Recommended: Identify sysnet.exe related errors
If sysnet.exe is located in a subfolder of the user's "Documents" folder, the security rating is 74% dangerous. The file size is 8,192 bytes. There is no file information. The program is not visible. The process listens for or sends data on open ports to a LAN or the Internet. The sysnet.exe file is not a Windows system file.
If sysnet.exe is located in the C:\Windows\System32 folder, the security rating is 90% dangerous. The file size is 8,192 bytes. The application has no file description. The program has no visible window. It is an unknown file in the Windows folder. The sysnet.exe file is not a Windows system file. The software listens for or sends data on open ports to a LAN or the Internet.
Important: You should check the sysnet.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: Security Task Manager examines the active sysnet process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the sysnet.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 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.