How to eliminate Woiap WApp unwanted application from the operating system
Written by Tomas Meskauskas on
What kind of application is Woiap WApp?
Woiap WApp is a PUA (Potentially Unwanted Application) discovered by our researchers while analyzing a rogue installation setup. This installer also included the fake "Save to Google Drive" browser extension. Note that setups of this kind could contain other suspicious and possibly dangerous software.
PUAs usually possess harmful capabilities. Upon examination, we learned that Woiap WApp drops the Legion Loader malware onto systems. Hence, its presence on a device can lead to multiple system infections and other severe issues.
Woiap WApp overview
The Woiap WApp unwanted application operates by dropping other content onto devices – therefore, it is classed as a dropper. This program has been observed infiltrating the Legion Loader malware. The primary function of this malware is to load additional malicious software or components onto devices.
Legion Loader has been noted installing trojans (backdoors), ransomware, information stealers, and cryptominers onto compromised machines.
This malware has also infiltrated malicious Google Chrome browser extensions that collect browsing-related data, steal email contents, and make modifications to browsers to turn them into HTTP proxies that abuse Internet resources (proxyware).
As mentioned in the introduction, the setup carrying Woiap WApp that we inspected also included the fake "Save to Google Drive" browser extension. Keep in mind that this PUA could be promoted by other installers or alongside different software.
In summary, the presence of software like Woiap WApp on devices can lead to multiple system infections, serious privacy issues, financial losses, and identity theft.
| Name | Woiap WApp potentially unwanted application |
| Threat Type | PUP (Potentially Unwanted Program), PUA (Potentially Unwanted Application), Dropper |
| Detection Names (installer) | ESET-NOD32 (Win32/TrojanDropper.Agent.TAL), NANO-Antivirus (Trojan.Win32.Injuke.kudqxk), VBA32 (TrojanPSW.Vidar), Zillya (Trojan.Agent.Win32.4093738), Full List Of Detections (VirusTotal) |
| Symptoms | A program that you do not recall installing suddenly appeared on your computer. Seeing advertisements not originating from the sites you are browsing. Intrusive pop-up ads. Rogue redirects. Decreased Internet browsing speed. |
| Distribution Methods | Deceptive pop-up ads, free software installers (bundling). |
| Damage | Stolen passwords and banking information, identity theft, the victim's computer added to a botnet, slow computer performance. |
| Malware Removal (Windows) | To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Combo Cleaner. |
Potentially unwanted application examples
Kowi SApp, Traw Dapp, Disoaq App, StealthGuard, and Joas App are merely some of our latest articles on PUAs. Unwanted apps typically have harmful capabilities, commonly including data tracking, browser hijacking, and displaying intrusive ads.
This software is often presented as legitimate and innocuous. It can also offer a broad range of "useful" functionalities, which seldom operate as advertised, and in most cases – they do not work at all.
Remember that even if an app or a browser extension functions exactly as indicated by its promotional material – that is not definitive proof of either legitimacy or safety.
How did potentially unwanted applications install on my computer?
We discovered Woiap WApp in an installer promoted by a deceptive webpage. Our researchers found it through a redirect produced by a Torrenting website that utilizes rogue advertising networks.
Aside from such networks, redirects to PUA-endorsing pages can be caused by intrusive adverts, spam browser notifications, misspelled URLs, and installed adware.
"Bundling" is also used to distribute PUAs. This technique entails packing regular program installation setups with unwanted/malicious additions.
The threat of unintentionally permitting access for bundled content into the device is increased by downloading from dubious channels (e.g., freeware and free file-hosting sites, P2P sharing networks, etc.) and by rushing through installations (e.g., ignoring terms, using "Easy/Quick" settings, etc.).
Additionally, unwanted software is proliferated by intrusive advertisements. Once clicked on, some of these ads can execute scripts to perform stealthy downloads/installations.
How to avoid installation of potentially unwanted applications?
We strongly recommend researching software and downloading it only from official/trustworthy sources. When installing, we advise reading terms, exploring possible options, using the "Custom/Advanced" settings, and opting out of all supplementary apps, extensions, features, etc.
Additionally, we urge caution when browsing since fraudulent and dangerous online content usually appears genuine and harmless. For example, despite their innocuous appearance – intrusive advertisements redirect to highly questionable websites (e.g., scam-promoting, pornography, adult dating, gambling, etc.).
In case of continuous encounters with such adverts/redirects, inspect the system and immediately remove all suspicious applications and browser extensions/plug-ins. If your computer is already infected with PUAs, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate them.
Deceptive website promoting Woiap WApp application:
Instant automatic malware removal:
Manual threat removal might be a lengthy and complicated process that requires advanced IT skills. Combo Cleaner is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:
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Quick menu:
- What is Woiap WApp?
- STEP 1. Uninstall deceptive applications using Control Panel.
- STEP 2. Remove rogue extensions from Google Chrome.
- STEP 3. Remove potentially unwanted plug-ins from Mozilla Firefox.
- STEP 4. Remove rogue extensions from Safari.
- STEP 5. Remove rogue plug-ins from Microsoft Edge.
Removal of potentially unwanted applications:
Windows 11 users:
Right-click on the Start icon, select Apps and Features. In the opened window search for the application you want to uninstall, after locating it, click on the three vertical dots and select Uninstall.
Windows 10 users:
Right-click in the lower left corner of the screen, in the Quick Access Menu select Control Panel. In the opened window choose Programs and Features.
Windows 7 users:
Click Start (Windows Logo at the bottom left corner of your desktop), choose Control Panel. Locate Programs and click Uninstall a program.
macOS (OSX) users:
Click Finder, in the opened screen select Applications. Drag the app from the Applications folder to the Trash (located in your Dock), then right click the Trash icon and select Empty Trash.
In the uninstall programs window, look for "Woiap WApp" and other suspicious/recently-installed applications, select these entries and click "Uninstall" or "Remove".
After uninstalling the potentially unwanted application, scan your computer for any remaining unwanted components or possible malware infections. To scan your computer, use recommended malware removal software.
Remove rogue extensions from Internet browsers:
At time of research, the installer promoting Woiap WApp included other suspicious software (e.g., adware, browser hijackers, etc.). If you experience unwanted ads or redirects when browsing the Internet, continue with the removal guide below.
Video showing how to remove potentially unwanted browser add-ons:
Remove malicious extensions from Google Chrome:
Click the Chrome menu icon 
(at the top right corner of Google Chrome), select "More Tools" and click "Extensions". Locate all recently-installed suspicious extensions, select these entries and click "Remove".
Optional method:
If you continue to have problems with removal of the woiap wapp potentially unwanted application, reset your Google Chrome browser settings. Click the Chrome menu icon (at the top right corner of Google Chrome) and select Settings. Scroll down to the bottom of the screen. Click the Advanced… link.
After scrolling to the bottom of the screen, click the Reset (Restore settings to their original defaults) button.
In the opened window, confirm that you wish to reset Google Chrome settings to default by clicking the Reset button.
Remove malicious plugins from Mozilla Firefox:
Click the Firefox menu 
(at the top right corner of the main window), select "Add-ons and themes". Click "Extensions", in the opened window locate all recently-installed suspicious extensions, click on the three dots and then click "Remove".
Optional method:
Computer users who have problems with woiap wapp potentially unwanted application removal can reset their Mozilla Firefox settings.
Open Mozilla Firefox, at the top right corner of the main window, click the Firefox menu, in the opened menu, click Help.
Select Troubleshooting Information.
In the opened window, click the Refresh Firefox button.
In the opened window, confirm that you wish to reset Mozilla Firefox settings to default by clicking the Refresh Firefox button.
Remove malicious extensions from Safari:
Make sure your Safari browser is active, click Safari menu, and select Preferences....
In the opened window click Extensions, locate any recently installed suspicious extension, select it and click Uninstall.
Optional method:
Make sure your Safari browser is active and click on Safari menu. From the drop down menu select Clear History and Website Data...
In the opened window select all history and click the Clear History button.
Remove malicious extensions from Microsoft Edge:
Click the Edge menu icon 
(at the upper-right corner of Microsoft Edge), select "Extensions". Locate all recently-installed suspicious browser add-ons and click "Remove" below their names.
Optional method:
If you continue to have problems with removal of the woiap wapp potentially unwanted application, reset your Microsoft Edge browser settings. Click the Edge menu icon (at the top right corner of Microsoft Edge) and select Settings.
In the opened settings menu select Reset settings.
Select Restore settings to their default values. In the opened window, confirm that you wish to reset Microsoft Edge settings to default by clicking the Reset button.
- If this did not help, follow these alternative instructions explaining how to reset the Microsoft Edge browser.
Summary:
Commonly, adware or potentially unwanted applications infiltrate Internet browsers through free software downloads. Note that the safest source for downloading free software is via developers' websites only. To avoid installation of adware, be very attentive when downloading and installing free software. When installing previously-downloaded free programs, choose the custom or advanced installation options – this step will reveal any potentially unwanted applications listed for installation together with your chosen free program.
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Frequently Asked Questions (FAQ)
What is the purpose of an unwanted application?
Unwanted applications are designed to generate revenue for their developers. However, these apps achieve this goal through nefarious means like causing chain infections, promoting dubious in-app purchases, endorsing content (via ads, redirects, etc.), collecting/selling sensitive information, and so on.
Is Woiap WApp unwanted application legal?
Usually, unwanted applications are considered legal because their End User License Agreements (EULAs) inform users of the software's behavior.
Is having Woiap WApp installed on my computer dangerous?
Woiap WApp operates as a dropper, and it has been observed dropping the Legion Loader malware onto systems. It may also be installed together with other harmful software (e.g., fake "Save to Google Drive" browser extension, etc.). Hence, the presence of this unwanted app on devices can lead to multiple system infections, severe privacy issues, financial losses, and identity theft.
Will Combo Cleaner help me remove Woiap WApp unwanted application?
Combo Cleaner will scan your computer and eliminate all unwanted/malicious applications that are present. Keep in mind that manual removal (performed without security tools) might be ineffective. In some cases, after an application has been manually removed – various file leftovers stay hidden within the system. Furthermore, these remnants might continue to run and cause problems. Therefore, it is essential to eliminate undesirable software thoroughly.
Outstanding!
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