Should I block it?

No, this file is 100% safe to run.

VersionsAdditional versions

6.2.9200.16384 (win8_rtm.120725-1247) 2.41%
6.2.9200.16384 (win8_rtm.120725-1247) 13.91%
6.2.8400.0 (winmain_win8rc.120518-1423) 0.09%
6.2.8400.0 (winmain_win8rc.120518-1423) 0.09%
6.2.8250.0 (winmain_win8beta.120217-1520) 0.05%
6.2.8102.0 (winmain_win8m3.110823-1455) 0.09%
6.1.7600.16385 (win7_rtm.090713-1255) 17.61%
6.1.7600.16385 (win7_rtm.090713-1255) 24.28%
6.1.7600.16385 (win7_rtm.090713-1255) 5.82%
6.1.7600.16385 (win7_rtm.090713-1255) 7.15%
6.1.7600.16385 (win7_rtm.090713-1255) 0.95%
6.1.7600.16385 (win7_rtm.090713-1255) 0.62%
6.1.7600.16385 (win7_rtm.090713-1255) 0.05%
6.1.7600.16385 (win7_rtm.090713-1255) 0.05%
6.0.6002.18805 (vistasp2_gdr.130308-1436) 1.66%
6.0.6002.18805 (vistasp2_gdr.130308-1436) 0.57%
6.0.6002.18005 (lh_sp2rtm.090410-1830) 4.92%
6.0.6002.18005 (lh_sp2rtm.090410-1830) 0.85%
6.0.6001.18000 (longhorn_rtm.080118-1840) 0.05%
6.0.6001.18000 (longhorn_rtm.080118-1840) 0.43%
6.0.6000.20597 (vista_ldr.070511-1510) 0.05%
6.0.6000.16386 (vista_rtm.061101-2205) 0.38%
5.2.3790.3959 (srv03_sp2_rtm.070216-1710) 0.05%
5.2.3790.3959 (srv03_sp2_rtm.070216-1710) 0.09%
5.1.2600.5512 (xpsp.080413-2111) 11.74%
View more

Relationships


PE structurePE file structure

Show functions
Import table
ntdll.dll
DllMain

smss.exe

Windows Session Manager by Microsoft

Remove smss.exe
Version:   6.1.7600.16385 (win7_rtm.090713-1255)
MD5:   16742790895960690237a5143cedec8b
SHA1:   a81b48a5d6a06543ed36b7e6ea75c5e52b79dd37
SHA256:   88f7b3db5d931389a737891e16d7069135959da03e9ec0fffe609561837fa74f
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:6.1.7600.16385 (win7_rtm.090713-1255)
Product version:6.1.7600.16385
Size:68 KB (69,632 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:0.00066575%
0.028634%
Kernel CPU:0.00064805%
0.013761%
User CPU:0.00001771%
0.014873%
Kernel CPU time:163,813 ms/min
100,923,805ms/min
CPU cycles:11,560/sec
17,470,203/sec
Memory
Private memory:280.52 KB
21.59 MB
Private (maximum):736.74 KB
Private (minimum):456.38 KB
Non-paged memory:280.52 KB
21.59 MB
Virtual memory:3.99 MB
140.96 MB
Virtual memory (peak):16.39 MB
169.69 MB
Working set:470.5 KB
18.61 MB
Working set (peak):859.16 KB
37.95 MB
Page faults:357/min
2,039/min
I/O
I/O read transfer:1.91 KB/sec
1.02 MB/min
I/O read operations:1/sec
343/min
I/O write transfer:94 Bytes/sec
274.99 KB/min
I/O write operations:1/sec
227/min
I/O other transfer:57 Bytes/sec
448.09 KB/min
I/O other operations:3/sec
1,671/min
Resource allocations
Threads:2
12
Handles:31
600

BehaviorsProcess properties

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

ResourcesThreads

Averages
 
smss.exe (main module)
Total CPU:0.00150362%
0.272967%
Kernel CPU:0.00148060%
0.107585%
User CPU:0.00002302%
0.165382%
CPU cycles:32,694/sec
5,741,424/sec
Memory:76 KB
1.16 MB
ntdll.dll
Total CPU:0.00108831%
Kernel CPU:0.00108831%
User CPU:0.00000000%
CPU cycles:10,342/sec
Memory:1.23 MB

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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