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:   6.0.6000.16386 (vista_rtm.061101-2205)
MD5:   b4abe68596b173ff2ab2076bc7c35eb4
SHA1:   7122ce27e59329c1d6833007dd9c937ee2c7841a
SHA256:   9f16b5bee0800ac3ef1343e1c4333ac444e3a927375682dedeeab29d1f975255
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:6.0.6000.16386 (vista_rtm.061101-2205)
Product version:6.0.6000.16386
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:0.02718270%
0.028634%
Kernel CPU:0.01526229%
0.013761%
User CPU:0.01192041%
0.014873%
Kernel CPU time:50,640,591 ms/min
100,923,805ms/min
CPU cycles:4,017,101/sec
17,470,203/sec
Context switches:100/sec
284/sec
Memory
Private memory:5.76 MB
21.59 MB
Private (maximum):11.16 MB
Private (minimum):6.96 MB
Non-paged memory:5.76 MB
21.59 MB
Virtual memory:152.89 MB
140.96 MB
Virtual memory (peak):202.68 MB
169.69 MB
Working set:9.19 MB
18.61 MB
Working set (peak):15.03 MB
37.95 MB
Page faults:149,522/min
2,039/min
I/O
I/O read transfer:18.35 KB/sec
1.02 MB/min
I/O read operations:209/sec
343/min
I/O other transfer:852 Bytes/sec
448.09 KB/min
I/O other operations:68/sec
1,671/min
Resource allocations
Threads:12
12
Handles:738
600
GUI GDI count:142
103
GUI USER count:75
49

BehaviorsProcess properties

Integrety level:System
Platform:64-bit
Command line:C:\Windows\System32\csrss.exe objectdirectory=\windows sharedsection=1024,20480,768 windows=on subsystemtype=windows serverdll=basesrv,1 serverdll=winsrC:userserverdllinitialization,3 serverdll=winsrC:conserverdllinitialization,2 profilecontrol=off maxrequestthreads=16
Owner:SYSTEM
Parent processes:

ResourcesThreads

Averages
 
LPK.DLL
Total CPU:0.10857132%
0.272967%
Kernel CPU:0.10857132%
0.107585%
User CPU:0.00000000%
0.165382%
CPU cycles:3,421,565/sec
5,741,424/sec
Context switches:5/sec
79/sec
Memory:52 KB
1.16 MB
msvcrt.dll (Windows NT CRT DLL by Microsoft)
Total CPU:0.06719354%
Kernel CPU:0.06719354%
User CPU:0.00000000%
CPU cycles:2,897,892/sec
Context switches:12/sec
Memory:624 KB
RPCRT4.dll
Total CPU:0.06322388%
Kernel CPU:0.06322388%
User CPU:0.00000000%
CPU cycles:3,129,517/sec
Memory:1.26 MB
CSRSRV.dll
Total CPU:0.03644848%
Kernel CPU:0.01814132%
User CPU:0.01830716%
CPU cycles:727,774/sec
Context switches:1/sec
Memory:116 KB
winsrv.dll
Total CPU:0.02360870%
Kernel CPU:0.02360870%
User CPU:0.00000000%
CPU cycles:1,507,746/sec
Context switches:10/sec
Memory:460 KB
USP10.dll
Total CPU:0.00353990%
Kernel CPU:0.00353990%
User CPU:0.00000000%
CPU cycles:107,834/sec
Memory:616 KB
GDI32.dll
Total CPU:0.00027296%
Kernel CPU:0.00027296%
User CPU:0.00000000%
CPU cycles:16,572/sec
Memory:400 KB
ADVAPI32.dll
Total CPU:0.00025918%
Kernel CPU:0.00025918%
User CPU:0.00000000%
CPU cycles:205,050/sec
Context switches:1/sec
Memory:1.03 MB

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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