What is Bc20
Bc20, also known as Trojan.Adload, is classified as adware and a potentially unwanted application (PUA) that primarily targets Mac operating systems. Despite not being a virus in the traditional sense, its behavior poses significant security risks to affected systems. Once installed, Bc20 inundates the user’s web browsing experience with an overwhelming amount of advertisements, including pop-ups and redirects, and alters browser settings across popular browsers like Mozilla Firefox, Google Chrome, and Safari. Moreover, it engages in covert data collection, tracking user activities and harvesting personal data, thereby necessitating swift removal to safeguard privacy and system performance. Bc20 adware represents a significant threat to Mac users, compromising their privacy and system performance through intrusive advertising and data collection. Understanding its infection mechanisms is crucial for prevention, while effective removal strategies ensure the restoration of system integrity. By adhering to recommended prevention measures and employing comprehensive removal approaches, users can protect their Mac systems from Bc20 and similar adware threats.
Adware shows following message in macOS:
This file was downloaded on a unknown date.
OK
Show in Finder
How Bc20 infects Mac computers
The infection vectors for Bc20 are multifaceted, exploiting user behavior and system vulnerabilities to gain unauthorized access. A common tactic involves bundling the adware with other software, where it sneaks into the system during the installation of legitimate applications, especially when users opt for default installation settings without scrutinizing bundled offers. Additionally, Bc20 employs deceptive prompts on untrustworthy websites, masquerading as legitimate updates or software. For instance, users are often tricked by fake “Update Adobe Flash Player” alerts, a method associated with AdLoad malware, leading to inadvertent installation.
- Download Bc20 Removal Tool
- Remove Bc20 from Login Items
- Remove/Uninstall Bc20 from Applications
- Remove Bc20 from browsers
- Reset browser settings
- Remove Bc20 files and folders
- Block Bc20 ads and pop-ups
- How to protect from threats, like Bc20
Download Bc20 Removal Tool
To remove Bc20 completely, we recommend you to use SpyHunter for Mac. It can help you remove files, folders, and registry keys of Bc20 and uninstall hijackers, toolbars, and unwanted add-ons from the Safari browser. The trial version of SpyHunter for Mac offers virus scan and 1-time removal for FREE.
Alternative Removal Tool
To remove Bc20 completely, we recommend you to use CleanMyMac. It can help you remove files, folders, and registry keys of Bc20 and uninstall hijackers, toolbars, and unwanted add-ons from the Safari browser.
Remove Bc20 manually for free
Note: Bc20 sets up to start on macOS startup. Therefore, before starting the removal, perform these steps:
- Open System Preferences, choose Users & Groups.
- Choose your account (set up as Current User).
- Click Login Items tab.
- Find “Bc20” entry. Select it, and click the “-“ (minus) button to remove it.
Note 2: Bc20 won’t quit just by closing it, therefor use Force Quit to end the process.
- Press 3 buttons at the same time: Option, Command, and Esc (Escape). This is similar to Control-Alt-Delete on a Windows PC.
- Choose Bc20 in the list.
- Click Force Quit button.
Here is a manual step-by-step tutorial for full Bc20 removal from your computer. This works 99% and was checked with the latest versions of Bc20 installer on operating systems with the latest updates and browser versions.
Remove Bc20 from Applications
Remove Bc20 from Mac:
- In the Finder sidebar, click Applications.
- Bc20 might have an Uninstaller. If you see Uninstall Bc20 or Bc20 Uninstaller, double-click it and follow the onscreen instructions.
- Otherwise, drag Bc20 from the Applications folder to the Trash (located at the end of the Dock).
- Then choose Finder > Empty Trash.
Cannot uninstall Bc20
If you can’t uninstall Bc20 using instructions above, or it keeps coming back, you can use free AppCleaner for Mac to remove all residual data and libraries of Bc20. Follow instructions below:
- Download free AppCleaner.
- Drag Bc20 from Applications folder to AppCleaner window.
- Choose files and folders you want to remove along with Bc20.
- Click Delete button.
Remove Bc20 add-on from your browsers
Removing Bc20 from Applications often does not bring the desired effect. It is a browser extension, and it may still be active in Google Chrome and Mozilla Firefox. Here are instructions on how to remove the Bc20 extension from your browsers manually.
Safari:
- Start Safari on your Mac, click Safari to open drop-down menu and choose Preferences
- Click Extensions tab.
- Find Bc20 extension.
- Click Uninstall button to remove it.
Google Chrome:
- Start Google Chrome browser
- In address box type (or copy-paste)
chrome://extensions
. - Find Bc20 extension.
- Click the trash can icon to remove it.
Mozilla Firefox:
- Start Mozilla Firefox browser.
- In address box type (or copy-paste)
about:addons
. - Choose Bc20 extension.
- Click Disable or Remove button.
Reset browser settings
To finish Bc20 removal, reset your browser settings to make sure, there are no leftover items in browser folders.
Reset Safari:
- Start Safari on your Mac, click Safari to open drop-down menu and choose Preferences
- Go to the Privacy section of Safari’s preferences.
- Click Remove All Website Data button.
- In the opened window, click Remove Now button to remove data stored by websites in Safari.
- Go to the Advanced section of Safari’s preferences.
- Click the Show Develop menu in menu bar option.
- In the menu, click Develop and select Empty Caches from this menu.
- Again, go to Safari menu and choose Clear History….
- Choose to clear all history and click Clear History button.
Reset Google Chrome:
- Start Google Chrome browser
- In address box type (or copy-paste)
chrome://settings
. - Scroll down and find Show advanced settings link.
- Click on it and scroll down to the bottom again.
- Click Reset settings button and click Reset to confirm.
Reset Mozilla Firefox:
- Start Mozilla Firefox browser.
- In address box type (or copy-paste)
about:support
. - Click Refresh Firefox… button.
- Click Refresh Firefox to confirm.
Remove following files and folders of Bc20
~/Library/Application Support/.[random_string]/Services/com.Bc20.service.app
~/Library/LaunchAgents/com.Bc20.service.plist
/Library/Application Support/.[random_string]/System/com.Bc20.system
/Library/LaunchDaemons/com.Bc20.system.plist
Download AdGuard for Mac to block malicious pop-ups, that promote Bc20
AdGuard is the best ad-blocker, internet filtering, and internet security application for macOS. It can cut out unwanted banners from site pages, block pop-ups, stop redirects, and prevent users from visiting potentially dangerous resources. Use it to stop ads promoting Bc20 in browsers.
How to protect Mac OSX from adware, like Bc20
Mac OSX is known to be one of the safest operating systems, and for a long time, there was no need for antivirus products for Mac. But with the growing popularity of Mac computers and notebooks and evolving technology, viruses, trojans, adware, toolbars, hijackers, and other malware paved the way for Mac users. We recommend you to use one of the best anti-malware for Mac available — Malwarebytes for Mac.