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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 an”
(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' (Служба шлюза уровня приложения). 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 SYSTEM account with extensive privileges on the local computer, and acts as the computer on the network. Служба шлюза уровня приложения 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 0.3% of all Boost users have the alg.exe process running.Of the 0.3% 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.
0.00032% CPU3240.1%
Average CPU utilization across all programs is 0.00001%.
     1.73 MB RAM8.1%
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.
         4 GDI objects2.7%
Average number of GUI GDI and USER objects for all programs is 150.
 1 context switches/sec1.0%
Average context switches for all programs is 100 per second.
Typical file (disk image) location:
C:\Windows\System32\alg.exe

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

alg.exe - version 6.3.9431.0 (winmain_bluemp.130615-1214)
alg.exe - version 6.2.9200.16384 (win8_rtm.120725-1247)
alg.exe - version 6.2.8400.0 (winmain_win8rc.120518-1423)
alg.exe - version 6.2.8250.0 (winmain_win8beta.120217-1520)
alg.exe - version 6.2.8102.0 (winmain_win8m3.110823-1455)
alg.exe - version 6.1.7600.16385 (win7_rtm.090713-1255)
alg.exe - version 5.2.3790.3959 (srv03_sp2_rtm.070216-1710)
alg.exe - version 5.2.3790.1830 (srv03_sp1_rtm.050324-1447)
alg.exe - version 5.1.2600.5512 (xpsp.080413-0852) (this)
alg.exe - version 5.1.2600.3311 (xpsp.080211-1047)
alg.exe - version 5.1.2600.3300 (xpsp.080125-0707)
alg.exe - version 5.1.2600.3244 (xpsp.071030-0319)
alg.exe - version 5.1.2600.2180 (xpsp_sp2_rtm.040803-2158)

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.
shell32.dll (Windows Shell Common Dll by Microsoft)
crypt32.dll (Crypto API32 by Microsoft)
atl.dll (Microsoft (R) Visual C++ by Microsoft)
mswsock.dll (Microsoft Windows Sockets 2.0 Service Provider by Microsoft)
iswshex.dll (ZoneAlarm Browser Security by Check Point Software Technologies Ltd)
snxhk.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?

Microsoft Windows XP (5.1.2600.131072)
Microsoft Windows XP (5.1.2600.196608)
Microsoft Windows XP Home Edition (5.1.2600.196608)
Windows XP Home Edition (5.1.2600.196608)
Windows XP Professional (5.1.2600.196608)
Windows Vista (TM) Home Premium (6.0.6001.65536)
Windows Vista (TM) Ultimate (6.0.6002.131072)
Windows 7 Home Premium (6.1.7601.65536)
Windows 7 Home Premium (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: 5.1.2600.5512 (xpsp.080413-0852)
Product version: 5.1.2600.5512
Size: 43.5 KB
Original file name: ALG.exe
Windows file protection: Yes

Resource utilization

CPU utilization averages
Total CPU: 0.0008665979%
Privileged CPU: 0.0005425924%
User CPU: 0.00032400551607%
Privileged CPU time: 2231.59 ms
Privileged CPU time /min: 0 ms
Context switches /sec: 1
Memory utilization averages
Committed memory: 33.12 MB
Peak committed memory: 34.52 MB
Paged memory: 1.73 MB
Peak paged memory: 1.96 MB
Paged system memory: 51.06 KB
Non-paged system memory: 5.74 KB
Working set memory: 2.37 MB
Peak working set memory: 4.25 MB
Min working set memory: 2.23 MB
Private memory: 1.73 MB
Page faults: 1,557
Page faults /min: 4
Process I/O averages
Total read operations: 21
Read operations /min: 1
Total read transfer: 45.85 KB
Read transfer /min: 127 Bytes
Total write operations: 18
Write operations /min: 1
Total write transfer: 10.62 KB
Write transfer /min: 22 Bytes
Total other operations: 702
Other operations /min: 2
Total other transfer: 55.7 KB
Other Transfer /min: 180 Bytes
GUI Object Averages
GDI objects: 4
USER objects: 2
Resources
Handle count average: 110
Thread count average: 6
Thread resource averages
npggnt.des
ntdll.dll
advapi32.dll
xpsp2res.dll
ntdll.dll

Process details

Runs as (owner): System
Integrety level: Undefined
Windows platform: 32-bit
Runs as a service: Yes
Parent Processes
services.exe (Services and Controller app by Microsoft)
Process Commands
C:\WINDOWS\System32\alg.exe
C:\WINDOWS\System32\alg.exe
C:\WINDOWS.0\System32\alg.exe
C:\windows\System32\alg.exe
C:\WINDOWS\System32\alg.exe

Service details

Name: Служба шлюза уровня приложения
Service name: ALG
Service type: Win32OwnProcess
Description: “Поддерживает сторонние подключаемые модули протокола для общего доступа к Интернету и брандмауэра Windows.”

Network connectivity

TCP: h88-150-199-196.host.redstation.co.uk on port 3337
TCP: localhost on port 1032
TCP: localhost on port 1069
TCP: localhost on port 1035
TCP: localhost on port 1027
TCP: localhost on port 1043
TCP: localhost on port 1025
TCP: localhost on port 1034
TCP: localhost on port 1030
TCP: localhost on port 1028
TCP: localhost on port 1029
TCP: localhost on port 1047

Image hashes

MD5: 8c515081584a38aa007909cd02020b3d
SHA-1: ef5728c819f466bfe56c36bc9db3fac004ef3d50
SHA-256: a5e13ca10f702928e0de84c74d0ea8accb117fd76fbabc55220c75c4ffd596dc

PE image details

Subsystem: Windows GUI
Langauge*: Microsoft Visual C++
File entropy: 6.22290
File packed: No
Import Table
advapi32.dll
kernel32.dll
msvcrt.dll
ole32.dll
ws2_32.dll
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