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The adware called Dregol is trending on security discussion boards currently, so the article below is going to sort of aggregate the known information about this threat and add in-house research data. The most important part of the present entry is dedicated to the instructions on Dregol removal and ways to restore the system settings that the virus changed.
It doesn’t take a rocket scientist or an IT guru to tell a normal web service enhancement tool from a malicious one. The key differentiation here is in the realm of an app’s activity and symptoms it causes. Normal add-ons won’t make changes to the browser settings unless authorized to do so, whereas adware doesn’t ask the user for approval. The Dregol by Chromium Search extension, for instance, circumvents the user consent phase while drastically modifying the way Chrome, Firefox and Internet Explorer operate on a PC. Likewise, people get this program without really being aware that it’s getting inside, rather than install it voluntarily. This behind-the-scenes installation is powered by a multitude of applications that covertly host the potentially unwanted payload. During the setup of affiliated software, you might actually get a notification about extra promotions, but this information is overlooked by most users because it’s embedded in the default installation options. The types of such underhand shipper programs vary, but in most cases these are free multimedia tools, streaming video downloaders, poorly rated OS maintenance utilities and cracked variants of software updates that are critical for system stability.
Materialization of the malign code inside a targeted computer consists in adding a program called Dregol Browser along with the Run_Dregol extension. The latter is displayed on the add-ons list of every web browser running in the system, and this is the object to blame for most of the Internet surfing problems which are to follow. A new URL (www.dregol.com) replaces the values you had in the fields for the homepage, default search and new tab page. Browser shortcuts are also reconfigured to launch the above-mentioned site every time they are triggered. These alterations turn into a messy issue because dregol.com is going to be visited more often than any other web page on the infected PC, and the user is stuck with these settings because they cannot always be efficiently corrected manually.
The adware’s landing site is intended primarily for displaying ads. Within the results it returns for any given query, there is a big share of sponsored data. Redundancy of those ads above the fold is both a nuisance and a hurdle for normal usage of browsers as the page load time tends to progressively increase. This situation requires urgent measures to be taken, including the removal of Dregol add-on and the respective program files. The optimal fix is to combine automatic cleanup with manual troubleshooting.
Automatic removal of Dregol Search virus
When it comes to handling infections like this one, using a reputable cleaning tool is the place to start. Sticking to this workflow ensures that every component of the adware gets found and eradicated from the affected computer.
1. Download and install the cleaning tool and click the Start Computer Scan button Download Dregol removal tool
2. The wait is worth it. Once the scan completes, you will see a report listing all malicious or potentially unwanted objects detected on your PC. Go ahead and click the Fix Threats option in order to get Dregol adware automatically uninstalled from your machine along with all of its modules. This being done, you should be good to go.
Uninstall Dregol through Control Panel
- From your Windows menu, go to Control Panel. Select Add or Remove Programs (for Windows XP / Windows 8) or Uninstall a program (Windows Vista / Windows 7)
- Find Dregol on the list. If it’s nowhere to be found, look for multimedia related programs (e.g. Flash Enhancer) or other odd-looking apps you remember to have installed lately. Select the suspicious one and click Uninstall/Change
Remove Dregol in Chrome1. Uninstall the Dregol extension
- Click the Chrome menu icon and select More tools > Extensions
- Find the add-on associated with Dregol and click the trash bin next to the bad entry
- Go back to Chrome menu and select Settings
- Go to On startup sub-section and activate the Open a specific page or set of pages option. Also, click Set pages
- Locate the Dregol entry under Startup pages and hit X button next to it
Remove Dregol in Firefox1. Eliminate the respective add-on
- In Firefox, go to Tools > Add-ons
- Hit the Extensions tab and locate Dregol on the list. Click Remove to get rid of it
- Click the magnifying glass icon in Firefox search box and select Change Search Settings
- Select the search engine to use by default and hit OK to save the changes
removal from Internet Explorer
- Open IE. Go to Tools > Manage Add-ons
- Select Toolbars and Extensions in the navigation pane, locate the items related to Dregol, including the Dregol API, right-click each one select Remove in the context menu
- Restart IE and check for symptoms of the infection. If the Dregol ads are not appearing anymore, then no further action is required. If the adware is still there, proceed to the steps below
- Go to Tools > Internet Options
- Hit the Advanced tab and click Reset
- Make sure the Delete personal settings option on the Reset Internet Explorer Settings dialog is ticked and click Reset
- Restart Internet Explorer for the changes to take effect
Did the problem go away? Check and see
Computer threats like the Dregol virus can be stealthier than you can imagine, skillfully obfuscating their components inside a compromised computer to evade removal. Therefore, by running an additional security scan you will dot the i’s and cross the t’s in terms of the cleanup.