Versions

3.5.1000.13728	14.29%
3.5.1000.13728	14.29%
3.5.1000.13728	14.29%
3.5.1000.13728	42.86%
3.5.1000.13728	14.29%

There are 5 versions of aso3defragsrv64.exe in the wild, the latest version being 3.5.1000.13728. It is started as a Windows Service with the name 'ASO3DiskOptimizer'. In addition, it is run under the context of the SYSTEM account with extensive privileges (the administrator accounts have the same privileges). The average file size is about 257.34 KB. The file is a digitally signed and issued to Systweak Inc by VeriSign. Some variations of the file have been seen to be installed with the program Advanced System Optimizer from Systweak Inc. The executable is a .NET framework assembly utilizing the CLR. During the process's lifecycle, the typical CPU resource utilization is about 0.0002% including both foreground and background operations, the average private memory consumption is about 3.79 MB with the maximum memory reaching around 4.98 MB. Addionally, typically read and write I/O disk operations is about 6.23 KB per minute for reads and 0 Bytes per minute for writes.

This is the ASO Defrag Service, a type of utility designed for Windows, whose purported purpose is to remove redundant items from the Windows registry. Registry cleaners in general try to automate the process of looking for invalid entries within the registry and resolving or removing them. Some registry cleaners make no distinction as to the severity of the errors, and many that do may erroneously categorize errors as critical with little basis to support it.