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What is alg.exe?

Part of Application Layer Gateway Service by Microsoft

What is it?

The Application Layer Gateway Service provides support for 3rd party protocol plug-ins for Internet Connection Sharing (ICS).

What if I disable Application Layer Gateway Service?

If you are not using Internet Connection Sharing (ICS) service, the Application Layer Gateway Service and Internet Connection Sharing (ICS) can be safely disabled.
Description of alg.exe from Microsoft
“Internet Connection Sharing (ICS) is the use of a device with Internet access such as 3G cellular service, broadband via Ethernet, or other Internet gateway as an access point for other devices. It was implemented by Microsoft as a feature of its Windows operating system for sharing a single Internet connection on one computer between other computers on the same local area network. It makes use of DHCP and network address translation (NAT). ICS offers configuration for other standard services and some configuration of NAT.”
(alg.exe is a system file that is installed with Windows)
Download Boost and enjoy your PC. Speed up Application Layer Gateway Service and optimize your PC.

How does alg.exe run?

Service - alg.exe runs as a background Windows service called 'ALG' (Υπηρεσία πύλης επιπέδου εφαρμογής). This is a system service that is installed with the Windows operating system and protected with Window's File Protection. This service runs as the LOCAL SERVICE account with minimum privileges on the local computer and presents anonymous credentials on the network. Υπηρεσία πύλης επιπέδου εφαρμογής 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.

Community

What is the community is seeing?What is the community is doing?
About 0.5% of all Boost users have the alg.exe process running.Of the 0.5% of alg.exe users, less than 1% have disabled it.
How resource intensive is alg.exe?
Comparison based on the average resource utilization across all programs.
0.00004% CPU415.9%
Average CPU utilization across all programs is 0.00001%.
     1.7 MB RAM7.9%
Average private memory utilization across all programs is 21.53 MB.
 1 /min0.0%
Average I/O read and write operations for all programs is 2,253 per minute.
Typical file (disk image) location:
C:\Windows\System32\alg.exe

Are there other versions of Application Layer Gateway Serv...?

alg.exe - version 6.2.9200.16384 (win8_rtm.120725-1247)
alg.exe - version 6.1.7600.16385 (win7_rtm.090713-1255)
alg.exe - version 6.1.7600.16385 (win7_rtm.090713-1255) (this)
alg.exe - version 6.0.6000.16386 (vista_rtm.061101-2205)
alg.exe - version 6.0.6000.16386 (vista_rtm.061101-2205)
alg.exe - version 6.0.6000.16386 (vista_rtm.061101-2205)
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 Application Layer Gateway Service.
snxhk64.dll (avast! Antivirus by AVAST Software)

What else is related?

themeui.dll (Windows-Design-API by Microsoft)
sstext3d.scr (Direct3D-Textbildschirmschoner by Microsoft)
photoviewershim.dll (Windows Live Photo Gallery by Microsoft)
logonui.exe (Windows-Anmeldebenutzeroberfläche by Microsoft)
msxml4a.dll (Microsoft(R) MSXML 4.0 SP1 by Microsoft)
msxml4r.dll (Microsoft(R) MSXML 4.0 SP1 by Microsoft)
msxml4.dll (Microsoft(R) MSXML 4.0 SP 2 by Microsoft)
freecell.exe (Entertainment Pack FreeCell Game by Microsoft)
wiaacmgr.exe (Windows Picture Acquisition Wizard by Microsoft)
prodaiintl1033.dll (ProdAddInIntl by Microsoft)
mimectl.dll (Microsoft® Exchange by Microsoft)
msvcp60.dll (Microsoft (R) Visual C++ by Microsoft)
rstrui.exe (System Restore Application by Microsoft)
dismhost.exe (Dism Host Servicing Process by Microsoft)
bcmsqlstartupsvc.exe (Business Contact Manager for Microsoft Outlook 2010 by Microsoft)
msonsext.dll (Microsoft Office by Microsoft)
encwcbar.dll (Microsoft Encarta by Microsoft)
workfolderssvc.dll (Microsoft® Work Folders Service by Microsoft)
appreadiness.dll (AppReadiness by Microsoft)
ole32.dll (Microsoft OLE for Windows by Microsoft)
microsoft.biztalk.brmacontrols.dll (Microsoft (R) BizTalk (R) Server 2010 by Microsoft)
ssoconfig.exe (Microsoft® Enterprise Single Sign-On by Microsoft)

What Windows OS versions does this run on?

Windows 7 Enterprise (6.1.7600.0)
Windows 7 Home Premium (6.1.7600.0)
Windows 7 Professional (6.1.7600.0)
Windows 7 Ultimate (6.1.7600.0)
Windows 7 Ultimate N (6.1.7600.0)
Windows Seven Black Edition (6.1.7600.0)
Windows Vista (TM) Ultimate (6.1.7600.0)
Windows 7 Ultimate (6.1.7600.196608)
Windows 7 Home Premium (6.1.7601.65536)
Windows 7 Ultimate (6.1.7601.65536)
Microsoft Windows 7 Professional (6.1.7601.65536)
Microsoft Windows XP (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: alg.exe
Publisher: Microsoft Corporation (verified)
Name: Application Layer Gateway Service
Description: Microsoft® Windows® Operating System
Version: 6.1.7600.16385 (win7_rtm.090713-1255)
Product version: 6.1.7600.16385
Size: 77.5 KB
Original file name: ALG.exe.mui
Windows file protection: Yes

Resource utilization

CPU utilization averages
Total CPU: 0.0001254936%
Privileged CPU: 0.0000839046%
User CPU: 0.00004158900218%
Privileged CPU time: 45956.77 ms
Privileged CPU time /min: 0 ms
CPU cycle count: 83,460,451
CPU cycle count /min: 356,658
Memory utilization averages
Committed memory: 29.61 MB
Peak committed memory: 31.32 MB
Paged memory: 1.7 MB
Peak paged memory: 1.78 MB
Paged system memory: 58.97 KB
Non-paged system memory: 8.43 KB
Working set memory: 3.08 MB
Peak working set memory: 5.27 MB
Min working set memory: 2.87 MB
Private memory: 1.7 MB
Page faults: 3,912
Page faults /min: 8
Process I/O averages
Total read operations: 1
Read operations /min: 1
Total read transfer: 15.09 KB
Read transfer /min: 378 Bytes
Total other operations: 296
Other operations /min: 2
Total other transfer: 7.74 KB
Other Transfer /min: 9 Bytes
Resources
Handle count average: 78
Thread count average: 4
Thread resource averages
sechost.dll

Process details

Runs as (owner): Local Service
Integrety level: System
Windows platform: 64-bit
Runs as a service: Yes
Parent Process
services.exe (Services and Controller app by Microsoft)
Process Commands
C:\Windows\System32\alg.exe
C:\windows\System32\alg.exe

Service details

Name: Υπηρεσία πύλης επιπέδου εφαρμογής
Service name: ALG
Service type: Win32OwnProcess
Description: “Παρέχει υποστήριξη για προσθήκες πρωτοκόλλων άλλων κατασκευαστών για την Κοινόχρηστη σύνδεση στο Internet”

Network connectivity

TCP: localhost on port 49205
TCP: localhost on port 49215
TCP: localhost on port 49158
TCP: localhost on port 54163
TCP: localhost on port 65351
TCP: localhost on port 55368

Image hashes

MD5: 3290d6946b5e30e70414990574883ddb
SHA-1: be0144e3235ffde0787e9f1cd34c828ec87d8e19
SHA-256: 0e9294e1991572256b3cda6b031db9f39ca601385515ee59f1f601725b889663

PE image details

Subsystem: Windows GUI
Langauge*: Microsoft Visual C++
File entropy: 6.35313
File packed: No
Import Table
advapi32.dll
api-ms-win-core-delayload-l1-1-1.dll
api-ms-win-core-errorhandling-l1-1-1.dll
api-ms-win-core-file-l1-2-0.dll
api-ms-win-core-handle-l1-1-0.dll
api-ms-win-core-heap-l1-2-0.dll
api-ms-win-core-interlocked-l1-2-0.dll
api-ms-win-core-kernel32-legacy-l1-1-0.dll
api-ms-win-core-libraryloader-l1-1-1.dll
api-ms-win-core-memory-l1-1-1.dll
api-ms-win-core-processthreads-l1-1-1.dll
api-ms-win-core-profile-l1-1-0.dll
api-ms-win-core-registry-l1-1-0.dll
api-ms-win-core-string-l1-1-0.dll
api-ms-win-core-string-l2-1-0.dll
api-ms-win-core-string-obsolete-l1-1-0.dll
api-ms-win-core-synch-l1-2-0.dll
api-ms-win-core-sysinfo-l1-2-0.dll
api-ms-win-core-threadpool-legacy-l1-1-0.dll
cryptbase.dll
kernel32.dll
msvcrt.dll
mswsock.dll
ole32.dll
ws2_32.dll
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