Idle Crawler is a potentially unwanted program, or PUP, that is commonly bundled with other downloads. When installed, Idle Crawler does not create any Start Menu shortcuts or Desktop icons. In fact, the only way you would know it's installed is that you may find it listed in the Uninstall Programs control panel. What you may notice, though, is that your computer's CPU is at 100%, your hard drive is constantly being accessed, and your computer and Internet connectivity appear to be slower. This is because in the background, there is a process called Runner.exe that is constantly launching instances of its bundled Chromium browser to access web sites. The Chromium processes that are launched will be either named Chrome.exe or Navigate.exe. The purpose of all these web requests is unknown, but the byproduct of all these requests is your computer is running slower than it should be. It is important to note that the Chrome program bundled with Idle Crawler is a legitimate program and not malware or a PUP.
When installed, Idle Crawler will create two tasks in the Windows Task Scheduler called Special IC Runner and Advanced IC Updating. The Special IC Runner task will start Idle Crawler every time you login to Windows and will continuous check to make sure it is running every ten minutes. The second task, Advanced IC Updating, will run every 6 hours and download new configurations or instructions for Runner.exe to use.
As you can see, this program will instead use up your computer's resources without your permission or knowledge. It is therefore important to remove this program so that your computer will be running properly again. Furthermore, if this program is installed on your computer there is a very good chance that other PUPs are installed as well. Please use this guide to remove all remnants of the Idle Crawler PUP and any other related programs.
Self Help Guide
If you are uncomfortable making changes to your computer or following these steps, do not worry! Instead you can get free one-on-one help by asking in the forums.
- This removal process may appear overwhelming due to the amount of the steps and the various programs used. Please do not be concerned as it is only written this way to give you clear and easy instructions so that anyone can use this guide. Before using this guide, you should print out these instructions and close any open programs and files as your web browser will need to be closed and your computer rebooted later in this fix.
sometimes has a usable Uninstall entry that can be used to remove the program, we want to try that first. To do this, click on the Start button and then select Control
- When in the Control Panel, double-click on one of the options below depending
on your version of Windows
- For Windows XP double-click on the Add or Remove Programs icon.
- For Windows Vista, Windows 7, Windows 8, and Windows 10 double-click on the Uninstall
- For Windows XP double-click on the Add or Remove Programs icon.
- When the Add or Remove Programs or the Uninstall Program screen is displayed,
please scroll through the list of programs and double-click on each of the
entries listed in bold below to uninstall them.
When you double-click on each of the above entries to uninstall them, please follow the default prompts and allow it to remove all files and all configuration information related to this program. If any of the programs ask you to reboot your computer, do not allow it to reboot until you have uninstalled all of the programs listed above.
- When you are done, you can close the Control Panel screens.
- Now we want to download Rkill in order to terminate any programs that may interfere with the removal process. Rkill will search your computer for active malware infections and attempt to terminate them so that they wont interfere with the removal process. To do this, please
download RKill to your desktop from the following link.
RKill Download Link - (Download page will open in a new tab or browser window.)
When at the download page, click on the Download Now button labeled iExplore.exe. When you are prompted where to save it, please save it on your desktop.
- Once it is downloaded, double-click on the iExplore.exe
icon in order to automatically attempt to stop any processes associated with
and other malware. Please be patient while the program looks for various
malware programs and ends them. When it has finished, the black window will
automatically close and a log file will open. Please review the log file and then close so you can continue with the next step. If you have problems running RKill, you can download the other renamed versions
of RKill from the rkill
download page. All of the files are renamed copies of RKill, which you
can try instead. Please note that the download page will open in a new browser
window or tab.
Do not reboot your computer after running RKill as the malware programs will start again.
- When Rkill has finished, you now need to download Junkware Removal Tool, or JRT, and save it to your desktop. JRT will scan your computer for adware programs that may have been installed on your computer without your knowledge. You can download JRT from the following URL:
- When JRT has finished downloading, please double-click on the JRT.exe icon that now appears on your desktop. Once you double-click on the icon Junkware Removal Tool will open and you will be presented with its start screen as shown below. If Windows prompts you as to whether or not you wish to run JRT, please allow it to run.
- Now press any key on your keyboard to continue with the cleaning process. The program will now start to search for known adware, PUPs, and junkware programs that may be installed on your computer. This process may take upwards to 20 minutes while it creates a registry backup and checks your startups, installed modules, processes, services, files, folders, and the Windows Registry.
- When it has finished it will display a notepad screen that contains a log file of all the adware programs, files, and registry keys that have been detected.
Please review this log file and then close the Notepad Window.
- At this point you should download Malwarebytes Anti-Malware, or MBAM, to scan your computer for any any infections or adware that may be present. Please download Malwarebytes from the following
location and save it to your desktop:
Malwarebytes Anti-Malware Download Link (Download page will open in a new window)
- Once downloaded, close all programs and Windows on your computer, including
- Double-click on the icon on your desktop named mb3-setup-1878.1878-18.104.22.1689.exe.
This will start the installation of MBAM onto your computer.
- When the installation begins, keep following the prompts in order to continue
with the installation process. Do not make any changes to default settings
and when the program has finished installing, make sure you leave Launch
Malwarebytes Anti-Malware checked. Then click on the Finish button. If MalwareBytes prompts you to reboot, please do not do so.
- MBAM will now start and you will be at the main screen as shown below.
Please click on the Scan Now button to start the scan. If there is an update available for Malwarebytes it will automatically download and install it before performing the scan.
- MBAM will now start scanning your computer for malware. This process can
take quite a while, so we suggest you do something else and periodically
check on the status of the scan to see when it is finished.
- When MBAM is finished scanning it will display a screen that displays any malware that it has detected. Please note that the infections found may be different
than what is shown in the image below due to the guide being updated for newer versions of MBAM.
You should now click on the Remove Selected button to remove all the seleted malware. MBAM will now delete all of the files and registry keys and add them to the programs quarantine. When removing the files, MBAM may require a reboot in order to remove some of them. If it displays a message stating that it needs to reboot, please allow it to do so. Once your computer has rebooted, and you are logged in, please continue with the rest of the steps.
- You can now exit the MBAM program.
- As many malware and unwanted programs are installed through vulnerabilities found
in out-dated and insecure programs, it is strongly suggested that you use
Secunia PSI to scan for vulnerable programs on your computer. A tutorial on
how to use Secunia PSI to scan for vulnerable programs can be found here:
How to detect vulnerable and out-dated programs using Secunia Personal Software Inspector
Your computer should now be free of the Runner.exe program. If your current security solution allowed this program on your computer, you may want to consider purchasing the PRO version of Malwarebytes Anti-Malware to protect against these types of threats in the future.