Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

6.2.9200.16384 (win8_rtm.120725-1247) 5.36%
6.1.7600.16385 (win7_rtm.090713-1255) 39.08%
6.1.7600.16385 (win7_rtm.090713-1255) 53.89%
5.1.2600.5512 (xpsp.080413-2111) 1.26%
5.1.2600.5512 (xpsp.080413-2111) 0.21%
5.1.2600.2180 (xpsp_sp2_rtm.040803-2158) 0.21%

Relationships


PE structurePE file structure

Show functions
Import table
ntdll.dll
DllMain

smss.exe

Windows Session Manager by Microsoft

Remove smss.exe
Version:   5.1.2600.5512 (xpsp.080413-2111)
MD5:   697e132d09d06a4d201aaa3fec6c760a
SHA1:   0bec98319c169315691c053c327a0d1310fe83b7
SHA256:   2920f5391c0abfa218920239b48200dfcad7eba6215d68459692fcbf47d8ae05
This is a Windows system installed file with Windows File Protection (WFP) enabled.

What is smss.exe?

When a client first tries to access a protected resource that is hosted by a relying party, the client must first authenticate itself to a security token service (STS) that is trusted by the relying party. The STS then issues a security token to the client. The client presents this token to the relying party, which then grants the client access to the protected resource. However, you don’t want the client to have to re-authenticate to the STS for each request, especially because it might not eve

About smss.exe (from Microsoft)

HTTP, the underlying transport of the Web, is a memory-less protocol. Every time a client requests an application, HTTP has no idea of the caller's identity—it simply forwards the request to the Web s

DetailsDetails

File name:smss.exe
Publisher:Microsoft Corporation
Product name:Windows Session Manager
Description:Microsoft® Windows® Operating System
Typical file path:C:\Windows\System32\smss.exe
Original name:smss.exe.mui
File version:5.1.2600.5512 (xpsp.080413-2111)
Product version:5.1.2600.5512
Size:49.5 KB (50,688 bytes)
Digital DNA
Entropy:6.466511
File packed:No
.NET CLR:No
More details

ResourcesResource utilization

(Note: statistics below are averages based on a minimum sample size of 200 unique participants)
Averages
 
CPU
Total CPU:0.00021379%
0.028634%
Kernel CPU:0.00018401%
0.013761%
User CPU:0.00002979%
0.014873%
Kernel CPU time:43,750 ms/min
100,923,805ms/min
Memory
Private memory:182 KB
21.59 MB
Private (maximum):468 KB
Private (minimum):276 KB
Non-paged memory:182 KB
21.59 MB
Virtual memory:3.74 MB
140.96 MB
Virtual memory (peak):14.34 MB
169.69 MB
Working set:284 KB
18.61 MB
Working set (peak):1.28 MB
37.95 MB
Resource allocations
Threads:3
12
Handles:19
600

BehaviorsProcess properties

Integrety level:Undefined
Platform:32-bit
Command line:\systemroot\system32\smss.exe
Owner:SYSTEM

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Ultimate 38.00%
Windows 7 Home Premium 34.00%
Windows 7 Professional 9.00%
Windows 8 Pro 8.00%
Windows 7 Home Basic 3.00%
Windows 7 Starter 2.00%
Windows 8 1.50%
Windows 8 Pro with Media Center 1.00%
Windows 8 Enterprise 1.00%
Windows 8 Enterprise Evaluation 0.50%
Windows Seven Black Edition 0.50%
Windows 7 Ultimate N 0.50%
Windows 7 Enterprise 0.50%
Windows 8 Pro N 0.50%

Distribution by countryDistribution by country

United States installs about 27.14% of Windows Session Manager.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Dell 24.60%
Hewlett-Packard 19.44%
Acer 14.68%
ASUS 10.32%
Toshiba 10.32%
Lenovo 5.56%
Sony 3.17%
Intel 3.17%
GIGABYTE 2.78%
Samsung 1.59%
MSI 1.59%
Sahara 0.79%
American Megatrends 0.79%
Medion 0.79%
Packard Bell 0.40%
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