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What is NisSrv.exe?

Part of Microsoft Network Inspection System by Microsoft

What is it?

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.
Description of nissrv.exe from Microsoft
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 can be left on at all times, and can automatically update itself to the latest set of definitions, so you're always protected.
Download Boost and enjoy your PC. Speed up Microsoft Network Inspection System and optimize your PC.

How does nissrv.exe run?

Service - NisSrv.exe runs as a background Windows service called 'NisSrv' (Microsoft Network Inspection). This service runs as the LOCAL SERVICE account with minimum privileges on the local computer and presents anonymous credentials on the network. Microsoft Network Inspection runs as a program that can be started by the Service Controller and that obeys the service control protocol. This type of service runs in a process by itself.


What is the community is seeing?What is the community is doing?
About 0.1% of all Boost users have the nissrv.exe process running.Of the 0.1% of nissrv.exe users, 27.0% have disabled it.
How stable is Microsoft Network Inspection System?
Based on crash data discovered by Boost, stability is a measure of how sound this particular process and the average percent of times it crashes.
Typical program1.26%
How resource intensive is NisSrv.exe?
Comparison based on the average resource utilization across all programs.
0.00087% CPU8739.7%
Average CPU utilization across all programs is 0.00001%.
          5.57 MB RAM25.9%
Average private memory utilization across all programs is 21.53 MB.
 2 /min0.1%
Average I/O read and write operations for all programs is 2,253 per minute.
Typical file (disk image) location:
C:\Program Files\microsoft security client\antimalware\nissrv.exe

Are there other versions of Microsoft Network Inspection S...?

Why are multiple of the same versions listed?

What modules are loaded?

A module is a dynamic link library (DLL) or an executable file that is loaded into the process. Below is a list of non-system modules that are loaded by Microsoft Network Inspection System.

What else is related?

Microsoft Network Inspection System Stability

nissrv.exe crashes or has encountered a critical error 0.8900% of the time.
Error: Stopped working (APPCRASH)
Crashing module: ipsconsumer.dll (still researching...)
Occurred: over 6 months ago

What Windows OS versions does this run on?

Windows Vista (TM) Home Premium (6.0.6002.131072)
Windows 7 Ultimate (6.1.7600.0)
Windows 7 Ultimate (6.1.7601.65536)

About Microsoft Corporation

Microsoft, founded in 1975 by Bill Gates and Paul Allen, is a veteran software company, best known for its Microsoft Windows operating system and the Microsoft More...
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File details

File name: NisSrv.exe
Publisher: Microsoft Corporation (verified)
Name: Microsoft Network Inspection System
Description: Microsoft Network Inspection System
Version: 3.0.8402.0
Size: 204.05 KB
Original file name: NisSrv.exe

Digital certificate

Certificate authority: Microsoft Corporation

Resource utilization

CPU utilization averages
Total CPU: 0.0014371076%
Privileged CPU: 0.0005631350%
User CPU: 0.00087397260327%
Privileged CPU time: 2496160.3 ms
Privileged CPU time /min: 1,503 ms
CPU cycle count: 603,812,554
CPU cycle count /min: 1,139,767
Memory utilization averages
Committed memory: 65.28 MB
Peak committed memory: 70.36 MB
Paged memory: 5.57 MB
Peak paged memory: 13.99 MB
Paged system memory: 101.48 KB
Non-paged system memory: 7.79 KB
Working set memory: 1.98 MB
Peak working set memory: 17.88 MB
Min working set memory: 1.06 MB
Private memory: 5.57 MB
Page faults: 8,952
Page faults /min: 6
Process I/O averages
Total read operations: 34
Read operations /min: 1
Total read transfer: 21.17 KB
Read transfer /min: 4 Bytes
Total write operations: 85
Write operations /min: 1
Total write transfer: 2.87 KB
Write transfer /min: 2 Bytes
Total other operations: 664
Other operations /min: 1
Total other transfer: 6.64 KB
Other Transfer /min: 4 Bytes
Handle count average: 265
Thread count average: 6
Thread resource averages

Process details

Runs as (owner): Local Service
Integrety level: System
Windows platform: 32-bit
Runs as a service: Yes
Parent Processes
Process Command
"C:\Program Files\Microsoft Security Client\Antimalware\NisSrv.exe"

Service details

Name: Microsoft Network Inspection
Service name: NisSrv
Service type: Win32OwnProcess
Description: “Helps guard against intrusion attempts targeting known and newly discovered vulnerabilities in network protocols”

Image hashes

MD5: a5cb074f34bbd89948e34a630d459c0c
SHA-1: 3befd399587338c4002f165faf002b522bf77e4b
SHA-256: ab90dedc8081ec35bc90857ec8f6b4b91023b0698bf0c4714cfc2104357bbda4

PE image details

CLR assembly: Yes
Subsystem: Windows Console
Langauge*: Microsoft Visual C# / Basic .NET
File packed: No
Import Table
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