Versions

6.3.9600.16384 (winblue_rtm.130821-1623)	6.75%
6.3.9431.0 (winmain_bluemp.130615-1214)	0.38%
6.2.9200.16384 (win8_rtm.120725-1247)	21.83%
6.2.8400.0 (winmain_win8rc.120518-1423)	0.15%
6.1.7600.16385 (win7_rtm.090713-1255)	68.39%
6.1.7600.16385 (win7_rtm.090713-1255)	0.08%
6.0.6001.18000 (longhorn_rtm.080118-1840)	2.43%

This is a Windows system installed file with Windows File Protection (WFP) enabled.

perfhost.exe has 7 known versions, the most recent one is 6.3.9600.16384 (winblue_rtm.130821-1623). It is started as a Windows Service called 'Host de DLL de Contador de Desempenho' with the name 'PerfHost'. It is run under the context of the LOCAL SERVICE account. The average file size is about 20.57 KB. During the process's lifecycle, the typical CPU resource utilization is about 0.0000% including both foreground and background operations, the average private memory consumption is about 2.46 MB with the maximum memory reaching around 4.1 MB. Addionally, typically read and write I/O disk operations is about 3 Bytes per minute for reads and 0 Bytes per minute for writes.