What is MicrosoftExtensions.dll, How to remove MicrosoftExtensions.dll

MicrosoftExtensions.dll is a harmful program.

remove It is a component of malware or spyware, you should immediately remove it using an antivirus and antispyware program.
If that does not help, then ask us for help in the Spyware removal forum.

Name: MicrosoftExtensions
Filename: MicrosoftExtensions.dll
Registry key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{3304f17f-732c-4ac6-bf67-dbdc8b88c11f}

Command: %Temp%\MicrosoftExtensions.dll
CLSID: {3304f17f-732c-4ac6-bf67-dbdc8b88c11f}
Startup Type: BHO
HijackThis Category: O2
HijackThis Line:

O2 – BHO: &UpdateCheck.dll – {3304F17F-732C-4AC6-BF67-DBDC8B88C11F} – C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\MICROS~1.DLL

DDS Line:

BHO: &UpdateCheck.dll : {3304F17F-732C-4AC6-BF67-DBDC8B88C11F} – C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\MICROS~1.DLL

Combofix/RSIT Line:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{3304F17F-732C-4AC6-BF67-DBDC8B88C11F}]
&UpdateCheck.dll – C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\MICROS~1.DLL

Description: trojan BHO that installed with AntivirusGT. AntivirusGT is a rogue antispyware program

How to remove: use the AntivirusGT removal instructions or the steps below.

1. Run Internet Explorer, open Tools menu and select Manage Add-ons option. Select UpdateCheck.dll addon and click disable. Click Ok and OK again. Close Internet Explorer.

2. Right click to Task bar and select Task Manager. In the list of processes, select AntivirusGT.exe and click End process button to stop it. Click Yes to confirm it. Close task Manager.

3. Download Malwarebytes Anti-malware. Install, perform a scan and let it remove what it found. Reboot afterwards (important).

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