Malicious file
netmeter.exe: what it is and what to do with it
netmeter.exe is an executable whose job in a threat is to start the parasite or launch its components. It has been linked to the NetRatings trojan, to keyloggers and to worms, but the same name can be needed by a program you use. Check the file before you delete it.
Prefer to do it yourself? The manual steps follow.
netmeter.exe is classed as spyware-related. When it is malicious it launches the payload quietly, so the threat can run without obvious symptoms. There are indications that it is a significant part of a dangerous threat, although it can also work on its own.
Parasites often use files with unsuspicious names, and a legitimate program may also need a netmeter.exe. Do not delete it unseen; verify the folder, the signature and the owning program first.
- Type
- Executable (.exe) that starts a parasite or its components
- Linked to
- The trojan NetRatings, and other malware such as keyloggers and worms
- Effect
- Runs the process behind the payload, often without visible symptoms
- Standalone
- Can work on its own, or as part of a bigger threat
- Genuine use
- Possible: a required file of an essential program
- Old verdict
- Suspicious (spyware-related)
What netmeter.exe does
In the old report netmeter.exe is described as the executable responsible for running processes and controlling actions on the machine. For a parasite, that means its primary purpose is to start the threat or launch its components, and the file is classed that way whether it is malicious or only suspicious.
Once it runs, the process carries out the parasite's payload. Because the work happens inside an ordinary-looking process, the threat can operate without causing particular symptoms. Executable files and DLLs like this one can be used by malicious actors.
The trojan NetRatings is named as one threat that installs and uses it, and the old page adds other malware types such as keyloggers and worms. There are indications that it is a significant part of a dangerous threat, and that it can also work on its own.
About .exe files. An .exe file is a program. It runs as a process you can see in Task Manager, so its name, folder and publisher are what to check.
How it gets on a PC
The old report does not describe one delivery route. Executable files are installed by the threats that use them, so the question is what brought the trojan or keylogger onto the PC: an attachment, a download or a program you installed.
Avoid clicking suspicious or unknown files on the machine. Look at what you opened or installed around the day netmeter.exe first appeared, and review other recent additions in Settings > Apps.
How to find it
netmeter.exe is a process, so Task Manager shows it, but Process Explorer shows more about where it comes from.
- Find the process Open Task Manager (Ctrl + Shift + Esc), go to Details and look for netmeter.exe. Right-click it and choose Open file location.
- Read the path and signature In Process Explorer, open the process Properties and check Image path, Verified signer and the parent process. A signed file in a program's own folder is expected; an unsigned one in AppData, Temp or Downloads is not.
- Look at startup Run Autoruns and search for netmeter. The Logon, Services and Scheduled Tasks tabs show what starts it at sign-in.
tasklist | findstr /i netmeter - Compare with your programs Check Settings > Apps for a program whose name matches the folder the file is in. If one does, the file may be one of its required executables.
The name alone proves nothing. Parasites use unsuspicious names, and essential programs ship many executables of their own.
How to remove netmeter.exe
Remove it only after the checks show it is not part of a program you need. Always inspect the file before deleting it.
- Scan with Microsoft Defender Windows Security > Virus & threat protection > Scan options > Full scan. Detection-based security software can examine netmeter.exe before you decide to delete or keep it.
- Run Microsoft Defender Offline scan Choose it in the same list. The PC restarts and scans before Windows loads, which finds components that hide while Windows runs.
- End the process and stop its startup In Task Manager end netmeter.exe, then disable or delete its entry in Autoruns so it does not start again.
- Delete the file and its companions Delete netmeter.exe from the folder you found, plus other files the same threat created. Leftover components can restart it.
- Reinstall a program if it broke If a program stops working afterwards, the file belonged to it. Repair or reinstall that program from Settings > Apps.
Warning signs
| What you see | What it means |
|---|---|
| netmeter.exe running although you did not install anything with that name | A threat or program you forgot about is running it. |
| The file sits in Temp, AppData or Downloads and is unsigned | Typical of a launcher for malware, not of an installed program. |
| Slow or unusual network activity with no clear cause | Spyware can work without symptoms, so this is a reason to scan rather than proof. |
| It comes back after you end or delete it | A startup entry or companion file still launches it. |
Questions people ask
Is netmeter.exe a virus?
It can be, but it is not always. netmeter.exe has been tied to the trojan NetRatings and to other malware such as keyloggers and worms. It may also be related to other processes or programs, so check the file before deciding.
Should I delete netmeter.exe?
Not before checking it. Do not delete the file without knowing what it belongs to, because it may be required by an essential program. Verify the folder and signature, scan it with Microsoft Defender, and remove it only if it proves malicious.
What does the process do?
When it is malicious, it starts the parasite or its components and runs the process responsible for the payload. Because of this, the threat can work without causing particular symptoms. You may notice nothing unusual on screen, because the visible part is only an ordinary process, while the payload does its work in the background without drawing attention to itself.
Why does a harmless-looking name matter?
Parasites often use files with unsuspicious names but malicious functionality. A name like netmeter.exe looks like a network tool, so judge the file by where it is, who signed it and what started it. A name that sounds like a network meter or tool invites trust, and people leave such files alone, which is exactly what a parasite relies on to stay on the PC for a long time.
Can it be a legitimate file?
Yes. There are tons of executable files that a program needs to run smoothly, and netmeter.exe may be one of them. If it is required by a program you use, deleting it will break that program.
How do I avoid files like this?
Avoid clicking suspicious or unknown files. Do not open attachments or installers from sources you do not trust, and keep Microsoft Defender running. Download programs only from the publisher's own site, check the User Account Control prompt before approving anything, and scan unknown files with Microsoft Defender before you open them.
Sources
- Microsoft Learn: Process Explorer (Sysinternals)
- Microsoft Learn: Autoruns (Sysinternals)
- Microsoft Learn: Windows Security scan options (Defender offline scan)
Version data read on Oct 5, 2026.
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