Should I block it?

No, this file is 100% safe to run.

Additional versions

4.5.0218.0	7.33%
4.5.0216.0	7.05%
4.4.0304.0	4.23%
4.4.0304.0	0.28%
4.4.0304.0	0.42%
4.3.0219.0	6.21%
4.3.0219.0	2.82%
4.3.0216.0	0.85%
4.3.0216.0	1.55%
4.3.0215.0	3.24%
4.3.0215.0	0.99%
4.2.0223.0	11.00%
4.2.0223.0	20.87%
4.2.0216.0	0.42%
4.1.0522.0	19.89%
4.1.0522.0	12.83%

Relationships

Parent process

services.exe (Services and Controller app by Microsoft)

Related files

NisSrv.exe

Microsoft Malware Protection by Microsoft Corporation (Signed)

Remove NisSrv.exe

Version:	4.3.0219.0
MD5:	249d12488f9ee43b0d812c87335e0ef2
SHA1:	40d0bdc3177cacfd3b8f76618ea4d74695869f38

What is NisSrv.exe?

Network Inspection System (NIS), which is the signature-based part of the Forefront TMG Intrusion Prevention System and Microsoft Security Essentials. NIS uses signatures of known vulnerabilities from the Microsoft Malware Protection Center to help detect and block malicious traffic. NIS, which is enabled by default, can be configured from the Getting Started Wizard.

About NisSrv.exe (from Microsoft Corporation)

“Microsoft Security Essentials is our fully featured, real-time antivirus solution for your home or small business. It runs quietly and efficiently in the background, with no annoying pop-ups.
It ca”

Details

File name:	nissrv.exe
Publisher:	Microsoft Corporation
Product name:	Microsoft Malware Protection
Description:	Microsoft Network Realtime Inspection Service
Typical file path:	C:\Program Files\microsoft security client\nissrv.exe
File version:	4.3.0219.0
Size:	288.45 KB (295,376 bytes)
Build date:	8/12/2013 8:09 PM
Certificate
Issued to:	Microsoft Corporation
Authority (CA):	Microsoft Corporation
Effective date:	Thursday, July 26, 2012
Expiration date:	Saturday, October 26, 2013
Digital DNA
File packed:	No
Code language:	Microsoft Visual C# / Basic .NET
.NET CLR:	Yes
.NET NGENed:	No

More details

Programs

The following programs will install this file

Microsoft Security Essentials

Microsoft Corporation

8% remove

Microsoft Security Essentials is an antivirus software product that provides protection against different types of malware such as computer viruses, spyware, rootkits and Trojan horses. It runs on Windows XP, Windows Vista and Windows 7, but not on Windows 8, which has a built-in AV component. Built upon the same virus definitions and scanning engine as other Microsoft antivirus products, MSE provides real-time protection, constantly mo...

Behaviors

Services

Runs under 'SYSTEM\CurrentControlSet\Services' by the Service Controller (services.exe)

'WdNisSvc' (Windows Defender-Netzwerkinspektionsdienst)
WdNisSvc

Resource utilization

(Note: statistics below are averages based on a minimum sample size of 200 unique participants)

Averages

CPU
Total CPU:	0.00211029%	0.028634%
Kernel CPU:	0.00130185%	0.013761%
User CPU:	0.00080844%	0.014873%
Kernel CPU time:	10,304,679 ms/min	100,923,805ms/min
CPU cycles:	1,497,665/sec	17,470,203/sec
Memory
Private memory:	6.54 MB	21.59 MB
Private (maximum):	4.83 MB
Private (minimum):	252 KB
Non-paged memory:	6.54 MB	21.59 MB
Virtual memory:	49.2 MB	140.96 MB
Virtual memory (peak):	52.62 MB	169.69 MB
Working set:	1.97 MB	18.61 MB
Working set (peak):	8.59 MB	37.95 MB
Page faults:	221,547/min	2,039/min
I/O
I/O read transfer:	63 Bytes/sec	1.02 MB/min
I/O read operations:	1/sec	343/min
I/O write transfer:	74 Bytes/sec	274.99 KB/min
I/O write operations:	2/sec	227/min
I/O other transfer:	17.03 KB/sec	448.09 KB/min
I/O other operations:	106/sec	1,671/min
Resource allocations
Threads:	11	12
Handles:	248	600

Process properties

Integrety level:	System
Platform:	32-bit
Command line:	"C:\Program Files\microsoft security client\nissrv.exe"
Owner:	User
Windows Service
Service name:	WdNisSvc
Display name:	Windows Defender-Netzwerkinspektionsdienst
Description:	“Schützt gegen Eindringversuche bei bekannten und neu erkannten Sicherheitsrisiken von Netzwerkprotokollen.”
Type:	Win32OwnProcess
Parent process:	services.exe (Services and Controller app by Microsoft)

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