How to remove the BTGrab.dll malware

Most antivirus programs classify BTGrab.dll as a harmful extension to Internet Explorer: e.g. not-a-virus:AdWare.Win32.BiSpy.t (detected by Kaspersky), and Adware:Win32/Transponder.B (detected by Microsoft). Add-ons like this can display ads, slow down your computer and cause various other errors. If you can't remember installing the associated BTGrab.dll software, it's no surprise. In most cases, this kind of adware is installed on the side when you install a freeware product like a Youtube Downloader or a PDF Converter. In the following selection, you can read more about BTGrab.dll and how to get rid of it.

Click here to automatically remove the BTGrab.dll malware

BTGrab.dll file information

The process known as appears to belong to software btgrab by BTGrab (

Description: BTGrab.dll is not essential for Windows and will often cause problems. BTGrab.dll is located in the C:\Windows folder. The file size on Windows 10/8/7/XP is 172,032 bytes. 
This .dll file is a Browser Helper Object (BHO) that runs automatically every time you start your web browser. BHOs are not stopped by personal firewalls, because they are identified by the firewall as part of the browser itself. BHOs are often used by adware and spyware. IDs used by this BHO include 00000000-F09C-02B4-6EC2-AD0300000000. BTGrab.dll is located in the Windows folder, but it is not a Windows core file. The program has no visible window. The file is able to monitor web browsers. The service has no detailed description. The file is not a Windows core file. Therefore the technical security rating is 72% dangerous, however you should also read the user reviews.

Recommended: Identify BTGrab.dll related errors

External information from Tony Klein:

Important: You should check the BTGrab.dll process on your PC to see if it is a threat. If BTGrab.dll has changed your browser's search engine and start page, you can recover your browser's default settings as follows:

Reset default browser settings for Internet-Explorer ▾
  1. In Internet Explorer, press the key combination Alt + X to open the Tools menu.
  2. Click Internet options.
  3. Click the Advanced tab.
  4. Click the Reset... button.
  5. Enable the Delete personal settings option.
This will reset your Internet Explorer to its default settings. Your browser will start with the familiar start page and search engine—without popups, ads, cookies, but all browser add-ons are deleted too [1]. Make cleaning up your browser and your computer simpler and safer with Security Task Manager.


User Comments

Takes over your BootLog - BE CAREFUL
  charlie eastaugh  
I can't delete it and it seems to have links sevral other trojans.
  Rob Vingerhoets  
It is downloaded by a trojan, it is not destructive but definently something you dont want on your computer
Spyware, probably related to SAHAgent, popups.
Certified spyware/foistware, or other malware
  kia   (further information)
pops up IE ads
Its harmful
malware/spyware usually located in c:\windows\btgrab.dll
Depending on your definition of "dangerous". It is a useless resource hog and can cause crashes. This file is part of the Transponder spy/ad ware. It pulls ads from the Internet and puts up at least two pop ups every time you start Internet Explorer. To delete, you must first unregister it and then reboot your computer.
  Dave Webb  
  Robert Eden   (further information)
  Bahus   (further information)
this file is a .dll file for the trojan BISPY.B and upon discovering should be virus scanned immediately.
Finding result of virus scan. Listed as Troj Bispy.B Virus
  Gregg from Los Angeles   (further information)
VX2 Spyware Infect That DLL
  Marc Dupuis  
Causes annoying pop ups and irritation
  Da Bern  
Watch out, was hacked by it, but is now back up & running  

Rating chart

Summary: Average user rating of BTGrab.dll: based on 18 votes with 18 user comments. 5 users think it's neither essential nor dangerous. 7 users suspect danger. 6 users think BTGrab.dll is dangerous and recommend removing it. 2 users don't grade BTGrab.dll ("not sure about it").

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Best practices for resolving BTGrab issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active BTGrab process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the BTGrab.dll on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.

A clean and tidy computer is the key requirement for avoiding PC trouble. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

Other processes

BTGrab.dll [all]