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

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:   5.1.2600.5512 (xpsp.080413-2111)
MD5:   44f275c64738ea2056e3d9580c23b60f
SHA1:   9b81fe32842db93292a59a87e73ca113701f7e3b
SHA256:   5d4b7306e71a44440e7f0b32a373aec120c01b69f87756589e39eb85c40cd742
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:5.1.2600.5512 (xpsp.080413-2111)
Product version:5.1.2600.5512
Size:6 KB (6,144 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:0.01149729%
0.028634%
Kernel CPU:0.00618029%
0.013761%
User CPU:0.00531700%
0.014873%
Kernel CPU time:735,771 ms/min
100,923,805ms/min
Context switches:190/sec
284/sec
Memory
Private memory:1.82 MB
21.59 MB
Private (maximum):5.44 MB
Private (minimum):2.68 MB
Non-paged memory:1.82 MB
21.59 MB
Virtual memory:36.75 MB
140.96 MB
Virtual memory (peak):52.73 MB
169.69 MB
Working set:4.12 MB
18.61 MB
Working set (peak):7.29 MB
37.95 MB
Page faults:69,364/min
2,039/min
I/O
I/O read transfer:25.38 KB/sec
1.02 MB/min
I/O read operations:431/sec
343/min
I/O other transfer:4.16 KB/sec
448.09 KB/min
I/O other operations:306/sec
1,671/min
Resource allocations
Threads:14
12
Handles:667
600
GUI GDI count:68
103
GUI USER count:65
49

BehaviorsProcess properties

Integrety level:Undefined
Platform:32-bit
Command lines:
  • C:\Windows\System32\csrss.exe objectdirectory=\windows sharedsection=1024,3072,512 windows=on subsystemtype=windows serverdll=basesrv,1 serverdll=winsrC:userserverdllinitialization,3 serverdll=winsrC:conserverdllinitialization,2 profilecontrol=off maxrequestthreads=16
  • C:\windows.0\system32\csrss.exe objectdirectory=\windows sharedsection=1024,3072,512 windows=on subsystemtype=windows serverdll=basesrv,1 serverdll=winsrC:userserverdllinitialization,3 serverdll=winsrC:conserverdllinitialization,2 profilecontrol=off maxrequestthreads=16
  • C:\winxp\system32\csrss.exe objectdirectory=\windows sharedsection=1024,3072,512 windows=on subsystemtype=windows serverdll=basesrv,1 serverdll=winsrC:userserverdllinitialization,3 serverdll=winsrC:conserverdllinitialization,2 profilecontrol=off maxrequestthreads=16
  • C:\Windows\System32\csrss.exe objectdirectory=\windows sharedsection=1024,12288,1024 windows=on subsystemtype=windows serverdll=basesrv,1 serverdll=winsrC:userserverdllinitialization,3 serverdll=winsrC:conserverdllinitialization,2 profilecontrol=off maxrequestthreads=16
  • C:\faiyas\system32\csrss.exe objectdirectory=\windows sharedsection=1024,3072,512 windows=on subsystemtype=windows serverdll=basesrv,1 serverdll=winsrC:userserverdllinitialization,3 serverdll=winsrC:conserverdllinitialization,2 profilecontrol=off maxrequestthreads=16
  • C:\windows1.1\system32\csrss.exe objectdirectory=\windows sharedsection=1024,3072,512 windows=on subsystemtype=windows serverdll=basesrv,1 serverdll=winsrC:userserverdllinitialization,3 serverdll=winsrC:conserverdllinitialization,2 profilecontrol=off maxrequestthreads=16
  • (7 more)
Owner:SYSTEM
Parent process:smss.exe (Windows NT Session Manager by Microsoft)

ResourcesThreads

Averages
 
npggNT.des
Total CPU:0.04186728%
0.272967%
Kernel CPU:0.00000000%
0.107585%
User CPU:0.04186728%
0.165382%
Memory:284 KB
1.16 MB
Secur32.dll
Total CPU:0.00338736%
Kernel CPU:0.00134533%
User CPU:0.00204203%
Memory:68 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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