Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

6.2.9200.16384 (win8_rtm.120725-1247) 2.58%
6.2.9200.16384 (win8_rtm.120725-1247) 13.73%
6.2.8400.0 (winmain_win8rc.120518-1423) 0.07%
6.2.8400.0 (winmain_win8rc.120518-1423) 0.07%
6.2.8250.0 (winmain_win8beta.120217-1520) 0.02%
6.2.8102.0 (winmain_win8m3.110823-1455) 0.07%
6.1.7600.16385 (win7_rtm.090713-1255) 23.81%
6.1.7600.16385 (win7_rtm.090713-1255) 42.28%
6.0.6000.16386 (vista_rtm.061101-2205) 6.91%
6.0.6000.16386 (vista_rtm.061101-2205) 1.38%
6.0.6000.16386 (vista_rtm.061101-2205) 0.39%
5.2.3790.1830 (srv03_sp1_rtm.050324-1447) 0.05%
5.1.2600.5512 (xpsp.080413-2111) 5.37%
5.1.2600.5512 (xpsp.080413-2111) 0.41%
5.1.2600.5512 (xpsp.080413-2111) 0.30%
5.1.2600.5512 (xpsp.080413-2111) 0.05%
5.1.2600.5512 (xpsp.080413-2111) 0.28%
5.1.2600.5512 (xpsp.080413-2111) 0.02%
5.1.2600.5512 (xpsp.080413-2111) 0.02%
5.1.2600.5512 (xpsp.080413-2111) 0.18%
5.1.2600.5512 (xpsp.080413-2111) 0.05%
5.1.2600.5512 (xpsp.080413-2111) 0.02%
5.1.2600.5512 (xpsp.080413-2111) 0.09%
5.1.2600.5512 (xpsp.080413-2111) 0.14%
5.1.2600.5512 (xpsp.080413-2111) 0.14%
View more

Relationships

PE structurePE file structure
Show functions
Import table
csrsrv.dll
CsrUnhandledExceptionFilter, CsrServerInitialization
ntdll.dll
RtlSetHeapInformation, RtlSetProcessIsCritical, NtTerminateThread, NtSetInformationProcess, RtlSetUnhandledExceptionFilter, NtTerminateProcess, RtlFreeAnsiString, RtlAllocateHeap, isspace, RtlUnicodeStringToAnsiString, RtlNormalizeProcessParams, DbgBreakPoint, RtlUnhandledExceptionFilter, RtlUnwind, _aullshr

csrss.exe

Client Server Runtime Process by Microsoft

Remove csrss.exe
Version:   6.2.9200.16384 (win8_rtm.120725-1247)
MD5:   0d9f14739d05f8b8b028b539fc6f1f29
SHA1:   032afcc3091dceb8f4cce35fa86cfa70fdf22fca
SHA256:   07751b8d090f4e159c0e38fb569b3c781dc8aaf0ce5a9505ac4f37265b5f4654
This is a Windows system installed file with Windows File Protection (WFP) enabled.

What is csrss.exe?

Client/Server Runtime Subsystem, or csrss.exe, is a component of the Microsoft Windows NT operating system that provides the user mode side of the Win32 subsystem and is included in Windows 2000, XP, 2003, Vista, Server 2008 and 7. Because most of the Win32 subsystem operations have been moved to kernel mode drivers, in Windows NT 4 and later CSRSS is mainly responsible for Win32 console handling and GUI shutdown.

About csrss.exe (from Microsoft)

“CSRSS runs as a user-mode system service. When a user-mode process calls a function involving console windows, process/thread creation, or Side-by-Side support, instead of issuing a system call, the W”

DetailsDetails

File name:csrss.exe
Publisher:Microsoft Corporation
Product name:Client Server Runtime Process
Description:Microsoft® Windows® Operating System
Typical file path:C:\Windows\System32\csrss.exe
Original name:CSRSS.Exe.MUI
File version:6.2.9200.16384 (win8_rtm.120725-1247)
Product version:6.2.9200.16384
Size:7.5 KB (7,680 bytes)
Digital DNA
Entropy:4.291245
File packed:No
.NET CLR:No
More details

BehaviorsBehaviors

Scheduled task
  • Entry path '\{1B908455-E233-4AF6-9EA8-FB47FE9E21E2}'

ResourcesResource utilization

(Note: statistics below are averages based on a minimum sample size of 200 unique participants)
Averages
 
CPU
Total CPU:0.00218022%
0.028634%
Kernel CPU:0.00147113%
0.013761%
User CPU:0.00070909%
0.014873%
Kernel CPU time:12,729,436 ms/min
100,923,805ms/min
CPU cycles:3,476,291/sec
17,470,203/sec
Context switches:106/sec
284/sec
Memory
Private memory:2.33 MB
21.59 MB
Private (maximum):16.43 MB
Private (minimum):5.87 MB
Non-paged memory:2.33 MB
21.59 MB
Virtual memory:108.92 MB
140.96 MB
Virtual memory (peak):150.77 MB
169.69 MB
Working set:11.57 MB
18.61 MB
Working set (peak):25.05 MB
37.95 MB
Page faults:140,181/min
2,039/min
I/O
I/O read transfer:9.98 KB/sec
1.02 MB/min
I/O read operations:270/sec
343/min
I/O write transfer:2 Bytes/sec
274.99 KB/min
I/O write operations:1/sec
227/min
I/O other transfer:2.16 KB/sec
448.09 KB/min
I/O other operations:113/sec
1,671/min
Resource allocations
Threads:11
12
Handles:411
600
GUI GDI count:157
103
GUI GDI peak:222
142
GUI USER count:77
49
GUI USER peak:86
71

BehaviorsProcess properties

Integrety level:System
Platform:64-bit
Command line:%systemroot%\system32\csrss.exe objectdirectory=\windows sharedsection=1024,20480,768 windows=on subsystemtype=windows serverdll=basesrv,1 serverdll=winsrC:userserverdllinitialization,3 serverdll=sxssrv,4 profilecontrol=off maxrequestthreads=16
Owner:SYSTEM
Parent process:svchost.exe (by Microsoft)

ResourcesThreads

Averages
 
ntdll.dll
Total CPU:0.06394204%
0.272967%
Kernel CPU:0.06394204%
0.107585%
User CPU:0.00000000%
0.165382%
CPU cycles:2,205,606/sec
5,741,424/sec
Context switches:14/sec
79/sec
Memory:1.75 MB
1.16 MB
winsrv.DLL
Total CPU:0.02796232%
Kernel CPU:0.02796216%
User CPU:0.00000015%
CPU cycles:2,172,339/sec
Context switches:28/sec
Memory:200 KB
CSRSRV.dll
Total CPU:0.00163531%
Kernel CPU:0.00096666%
User CPU:0.00066866%
CPU cycles:48,366/sec
Memory:76 KB

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Home Premium 58.00%
Windows 7 Ultimate 23.00%
Windows 7 Professional 12.00%
Windows 7 Home Basic 5.00%
Windows Seven Black Edition 1.00%
Windows Vista Home Premium 1.00%

Distribution by countryDistribution by country

United States installs about 49.49% of Client Server Runtime Process.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Dell 26.56%
Hewlett-Packard 19.14%
Acer 15.23%
ASUS 14.06%
Toshiba 12.50%
Sony 6.25%
Alienware 1.56%
Samsung 1.56%
GIGABYTE 1.56%
Lenovo 1.56%
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