AggregatorHost.exe - Is It Safe?

AggregatorHost.exe is a process that can be observed running in the background on Windows systems. Some users have expressed doubts and concerns about this file, worrying it might be malicious. This article will address those concerns.

Under normal circumstances, AggregatorHost.exe will not be a malicious file. It is a file that can be found on a clean, safe Windows install and is actually part of Windows installation media. A copy of AggregatorHost.exe can be found under \sources\install.wim\2\Windows\System32\ on a legitimate Windows installation media source.

This should put your concerns to rest when it comes to whether the file is associated with Windows and Microsoft and whether it is a legitimate file.

However, it should be mentioned that malware can use different techniques to hijack legitimate Windows processes through injection and hollowing. If you observe abnormally high resource use associated with your copy of AggregatorHost.exe or find the file in a location different from \Windows\System32\, you may be dealing with some sort of malicious process hijacking.

In those cases, it is recommended that you use an anti-malware scanner and run the file through it to make sure it is not malicious.

Why You Should Beware of AggregatorHost.exe