How to remove the rlls virus

Most antivirus programs identify rlls.dll as malware—for example Sophos identifies it as Generic Proxy-OSS Application, and BitDefender identifies it as Gen:Adware.Heur.Hy9@R0CzHwji or Gen:Adware.Heur.wy8@R86RlZoi.

The free file information forum can help you find out how to remove it. If you have additional information about this file, please leave a comment or a suggestion for other users.

Click to Run a Free Virus Scan for the rlls.dll malware

Rlls.dll file information

The process known as RelevantKnowledge belongs to software RelevantKnowledge by TMRG, ( or RelevantKnowledge (

Description: Rlls.dll is not essential for Windows and will often cause problems. The file rlls.dll is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 389,760 bytes (13% of all occurrences), 385,664 bytes and 15 more variants. 
A .dll file (Dynamic Link Library) is a special type of Windows program containing functions that other programs can call. This .dll file can be injected to all running processes and can change or manipulate their behavior. The program has no visible window. The service has no detailed description. It can change the behavior of other programs or manipulate other programs. The rlls.dll file is not a Windows core file. The file has a digital signature. Rlls.dll is able to connect to the Internet, record keyboard and mouse inputs, manipulate other programs and monitor applications. Therefore the technical security rating is 63% dangerous, however you should also read the user reviews.

Uninstalling this variant: If any problems with rlls.dll occur, you can also completely remove RelevantKnowledge or Setup (Control Panel ⇒ Uninstall a Program).

Recommended: Identify rlls.dll related errors

Important: You should check the rlls.dll process on your PC to see if it is a threat. If RelevantKnowledge 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

It says in the properties that it can record keyboard input, im going to go ahead and assume the worst.
  John Hencock  
is infected
  mihutiu norbert  
RelevantKnowledge DOES record browsing but does not steal accounts/passwords or anything. Check out the website... they explain its function.
  Mike   (further information)
It is not a required file for windows to run. I have a recently reformated computer here and it does not have the file.
  LaTasha Arnett, IT Lab, Alice Lloyd College  
it's a module file which will corrupt your IE and when ever you try to open the Internet explorer, you'll get a message IExplore.exe encountered an error and needs to close. so better remove it.
  Raj - Microsoft Support Professional   (further information)
if rlls.dll is removed from system32 folder internet and network/LAN is inaccessable! This one is nasty.
rlls.dll is a bad file that is tied to RelevantKnowledge. In order to remove it, I had to boot to a CD. After removing the file, I no longer have network connectivity. This has linked itself to some module that is interfering with networking. I am working on the fix now. This file doesn't exist on any other Windows installations that I know about.
Just screwed my system, couldn't get my laptop to work more than 5-10 minutes, an anti-spyware warned me about the problem, i've deleted the whole stuff and now my pc's performance is back between good and awesome
I think it's something that isn't required, just another thing for you computer to think about.
i virus scanned my computer with AVG antivirus pro, and i saw it was a virus. my toolbar was kind of removed , but when i deleted the file, it was back.
It Is Not Needed and is not needed for anything to function ... it is a virus ..
  Keith Dunne   (further information)
Just removed it from a machine using bootable CD, upon re-entering windows the network was not working. The solution was to log in as an admin and run the popular utility winsock fix.
  Mark, Geek...  
Just pull out your internet cable rename it restart the computer and then delete it worked for me at least =)
i dont know anything about this but my virus protection keeps freaking out about finding it.
It is being distributed via RelevantKnoledge
  Calder H.  
my malwarebytes anti-malware detetected this rlls.dll file
  vignesh ravi  
Get rid of RelevantKnowledge element !!!
But after removing this, all works thanks! This is a legit comment.

Rating chart

Summary: Average user rating of rlls.dll: based on 22 votes with 18 user comments. One user thinks rlls.dll is essential for Windows or an installed application. One user thinks it's probably harmless. 2 users suspect danger. 18 users think rlls.dll is dangerous and recommend removing it. 2 users don't grade rlls.dll ("not sure about it").

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Best practices for resolving rlls issues

The following programs have also been shown useful for a deeper analysis: ASecurity Task Manager examines the active rlls process on your computer and clearly tells you what it is doing. Malwarebytes' well-known Banti-malware tool tells you if the rlls.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 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic 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 6resmon 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 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

Other processes

rlls.dll [all]