How to remove the Helper Dynamic Link Library malware

Some anti-malware programs classify Helper.dll as a harmful extension to Internet Explorer: for instance Trojan.Win32.Vapsup.nbd or Trojan-PSW.Win32.LdPinch.ajcl (detected by Kaspersky), and Adware:W32/CnsMin (detected by F-Secure). Add-ons like this can display ads, slow down your computer and cause various other errors. If you can't remember installing the associated Helper Dynamic Link Library 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 Helper Dynamic Link Library and how to get rid of it.

Click here to automatically remove the Helper Dynamic Link Library malware

Helper.dll file information

The process known as Helper Dynamic Link Library or distribution or rt.dll appears to belong to software Browser Helper Object or rt.bho or ScreenSnaperGadget or com.bho or distribution by DCUtility (

Description: Helper.dll is not essential for Windows and will often cause problems. The Helper.dll file is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 282,636 bytes (23% of all occurrences), 290,816 bytes and 7 more variants. 
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 AFD4AD01-58C1-47DB-A404-FBE00A6C5486 or B4FAF6E4-77D0-46c7-8656-7F7B45056451. The program has no visible window. There is no detailed description of this service. Helper.dll is not a Windows system file. There is no file information. The Helper.dll file is able to monitor web browsers. Helper.dll is able to record keyboard and mouse inputs. Therefore the technical security rating is 79% dangerous, however you should also read the user reviews.

Recommended: Identify Helper.dll related errors

Important: Some malware also uses the file name Helper.dll, for example Trojan.Win32.Vapsup.nbd or Trojan-PSW.Win32.LdPinch.ajcl (detected by Kaspersky), and Adware:W32/CnsMin (detected by F-Secure). Therefore, you should check the Helper.dll process on your PC to see if it is a threat. If Helper Dynamic Link Library 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

dun know
  sjms   (further information)
could be dangerous but i thinks its to do with bt browser
  sean A (UK)  
Known info stealing trojan
It is a trojan used to access your e-mail passwords and then send spam to your mailing lists.
  Mharcus Stark  
it was a trojan picked up by stinger, it could not be repaired so I hunted it down in system32 and deleted it. That knocked by internet connection out. Now I have another problem,in getting a connection renewd or repaired. It all started with the rouge scanner Security essentials 2010.

Rating chart

Summary: Average user rating of Helper.dll: based on 6 votes with 5 user comments. One user thinks it's neither essential nor dangerous. 5 users think Helper.dll is dangerous and recommend removing it. One user is not sure about it.

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Best practices for resolving Helper issues

The following programs have also been shown useful for a deeper analysis: Security Task Manager examines the active Helper process on your computer and clearly tells you what it is doing. Malwarebytes' well-known anti-malware tool tells you if the Helper.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

Helper.dll [all]