JSMiner-C removal instructions
What is JSMiner-C?
First detected by Avast, JSMiner-C is malware that helps developers to mine cryptocurrency. JSMiner-C is essentially designed to cause redirects to malicious sites that mine Monero cryptocurrency. These sites are not limited to mining cryptocurrency - they also proliferate potentially unwanted adware-type programs (PUPs), deliver intrusive advertisements, and collect various sensitive data.
Malicious sites are likely to proliferate adware-type PUPs. These applications also have identical behavior - they deliver intrusive advertisements and record various data. The websites and PUPs deliver coupon, banner, pop-up, and other deceptive ads. The ads often lead to other malicious sites and run scripts that download and install malware. Therefore, clicking them can result in high-risk computer infections. In addition, ads delivered by PUPs often conceal underlying website content, thereby significantly diminishing the Internet browsing experience. Furthermore, malicious websites and rogue programs gather Internet Protocol (IP) addresses, Internet service providers (ISPs), geographic locations, website URLs visited, queries entered into search engines, keystrokes, and other information that typically includes personal information. The collected data is later sold to third parties (potentially, cyber criminals) who generate revenue by misusing confidential details. Therefore, information tracking can lead to serious privacy issues or even identity theft. If you continually encounter redirects to suspicious websites, observe intrusive advertisements, and experience a reduction in system performance, immediately eliminate all dubious applications/browser plug-ins and scan the system with a legitimate anti-virus/anti-spyware suite.
There are dozens of adware-type applications, all of which are virtually identical (e.g., Best Results, BrowseSuggest, Internet Quick Access, and many others). By offering various useful features, these potentially unwanted programs attempt to give the impression of legitimacy, however, they deliver no real value for regular users. Adware is designed only to generate revenue for the developers. Rather than enabling the functionality promised, it poses a threat to your privacy and Internet browsing safety.
How did JSMiner-C install on my computer?
PUPs are proliferated using intrusive advertisements and a deceptive marketing method called "bundling". Therefore, due to the lack of knowledge and careless behavior of many users, they often infiltrate systems without permission. "Bundling" is stealth installation of third party software together with regular apps. Developers hide "bundled" programs within "Custom/Advanced" options (or other sections) of the download/installation processes. Many users rush these procedures and skip steps. In addition, they click dubious links/advertisements, since they are not aware of the possible consequences. This careless behavior often leads to various computer infections.
How to avoid installation of potentially unwanted applications?
The key to computer safety is caution. Therefore, pay close attention when browsing the Internet and downloading/installing software. Bear in mind that intrusive advertisements look legitimate, however, they are easy to distinguish, since most lead to gambling, adult dating, pornography, and other dubious sites. If you encounter such advertisements, immediately remove all suspicious applications and browser plug-ins. Furthermore, never rush when downloading and installing software. Select "Custom/Advanced" settings, closely analyze each window of the dialogs, and cancel all additionally-included programs. You are advised to download your programs from official sources only, using direct download links. Unofficial downloaders/installers are used to proliferate malware (the "bundling" method) and, therefore, these tools should not be used. Having a legitimate anti-virus/anti-spyware suite installed on your computer is also paramount.
- What is JSMiner-C?
- STEP 1. Uninstall adware applications using Control Panel.
- STEP 2. Remove adware from Internet Explorer.
- STEP 3. Remove rogue plug-ins from Google Chrome.
- STEP 4. Remove adware-type extensions from Mozilla Firefox.
- STEP 5. Remove malicious extensions from Safari.
- STEP 6. Remove rogue plug-ins from Microsoft Edge.
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.
Windows XP users:
Click Start, choose Settings and click Control Panel. Locate and click Add or Remove Programs.
Windows 10 and Windows 8 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.
Mac 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 any potentially unwanted programs, select these entries and click "Uninstall" or "Remove".
After uninstalling the potentially unwanted program that causes JSMiner-C redirects, scan your computer for any remaining unwanted components or possible malware infections. To scan your computer, use recommended malware removal software.
Download recommended remover for
1) Download and install 2) Run system scan 3) Enjoy your clean computer!
Remove adware from Internet browsers:
Video showing how to remove potentially unwanted browser add-ons:
Remove malicious add-ons from Internet Explorer:
Click the "gear" icon (at the top right corner of Internet Explorer), select "Manage Add-ons". Look for any recently-installed suspicious browser extensions, select these entries and click "Remove".
If you continue to have problems with removal of the jsminer-c malware, reset your Internet Explorer settings to default.
Windows XP users: Click Start, click Run, in the opened window type inetcpl.cpl In the opened window click the Advanced tab, then click Reset.
Windows Vista and Windows 7 users: Click the Windows logo, in the start search box type inetcpl.cpl and click enter. In the opened window click the Advanced tab, then click Reset.
Windows 8 users: Open Internet Explorer and click the gear icon. Select Internet Options.
In the opened window, select the Advanced tab.
Click the Reset button.
Confirm that you wish to reset Internet Explorer settings to default by clicking the Reset button.
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 browser add-ons, select these entries and click the trash can icon.
If you continue to have problems with removal of the jsminer-c malware, 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 plug-ins from Mozilla Firefox:
Click the Firefox menu (at the top right corner of the main window), select "Add-ons". Click "Extensions", in the opened window, remove all recently-installed suspicious browser plug-ins.
Computer users who have problems with jsminer-c malware 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.
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 add-ons from Microsoft Edge:
Click the three horizontal dots icon (at the top right corner of Microsoft Edge), select "Extensions". Look for any recently-installed suspicious extensions, right click your mouse on these entries and click "Uninstall".
Click the three horizontal dots icon (at the top right corner of Microsoft Edge), and select Settings.
In the opened tab, click the "Choose what to clear" button.
Click Show more and select everything, and then click the "Clear" button.
- If this didn't help, please follow these alternative instructions explaining how to reset Microsoft Edge browser.
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.
If you are experiencing problems while trying to remove jsminer-c malware from your computer, please ask for assistance in our malware support forum.
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