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How to remove apps promoting iosdfnc.com?

Also Known As: iosdfnc.com pop-up
Type: Mac Virus
Distribution: Low
Damage level: Medium

How to remove apps opening pages like iosdfnc[.]com?

What is iosdfnc[.]com?

Iosdfnc[.]com is a deceptive website using scare tactics to trick its visitors into downloading and installing a potentially unwanted application (PUA), or applications. As a rule, websites like iosdfnc[.]com display fake virus or error notifications encouraging to immediately fix the problem (remove viruses, errors) using an app that can be downloaded via the provided links. Either way, iosdfnc[.]com, and similar pages should be ignored. It is worthwhile to mention that users do not visit websites like iosdfnc[.]com on purpose. Usually, these pages get opened when users click on shady ads, visit other unreliable pages, or have some PUA installed on a web browser (or the operating system).

iosdfnc[.]com scam

There are at least two versions of the iosdfnc[.]com website. One version displays a fake system notification claiming that the device has been compromised and encourages to take immediate action. It claims that the device got infected with a virus after visiting an adult website, and that virus has recorded a screen. Iosdfnc[.]com claims that the virus is not going to be removed in two minutes, then all photos stored on a device and the recorded video will be leaked. In order to fix this "problem", iosdfnc[.]com encourages to download some VPN client via the "Remove Virus" button. Another iosdfnc[.]com variant suggests that the Internet connection may not be secure and offers to secure it by downloading and installing Norton Secure VPN. This app is a legitimate NortonLifeLock product. However, it should not be downloaded via websites like iosdfnc[.]com. It is common that scammers monetize pages like iosdfnc[.]com by earning a commission from the product sale. However, it is important to know that legitimate companies do not allow rogue affiliates to advertise their products (or services) using deceptive methods (scare tactics) like fake notifications on the iosdfnc[.]com website. Apps should be downloaded from legitimate pages or platforms like App Store.

As mentioned in the first paragraph, pages like iosdfnc[.]com tend to be promoted via potentially unwanted applications. Quite often, PUAs collect browsing data, and other information and (or) generate advertisements as well. They often gather details like IP addresses, websites of visited pages, entered search queries, and geolocations. Sometimes they can access sensitive, confidential information. Examples of ads that PUAs generate are coupons, banners, surveys, pop-up ads. Those ads cannot be trusted. They often are used to promote questionable sites. Moreover, sometimes those ads can be designed to download, install unwanted applications by running certain scripts. If any PUA is installed on a browser or the operating system, then it should be removed.

Threat Summary:
Name iosdfnc.com pop-up
Threat Type Phishing, Scam, Mac malware, Mac virus
Fake Claim iPhone has been compromised/infected with a virus
Detection Names alphaMountain.ai (Suspicious), Fortinet (Phishing), Cartego (Suspicious), Full List (VirusTotal)
Serving IP Address 165.22.6.204
Promoted Application Norton Secure VPN
Symptoms Your Mac becomes slower than normal, you see unwanted pop-up ads, you are redirected to dubious websites.
Distribution methods Deceptive pop-up ads, free software installers (bundling), fake Flash Player installers, torrent file downloads.
Damage Internet browser tracking (potential privacy issues), display of unwanted ads, redirects to dubious websites, loss of private information.
Malware Removal (Mac)

To eliminate possible malware infections, scan your Mac with legitimate antivirus software. Our security researchers recommend using Combo Cleaner.
▼ Download Combo Cleaner for Mac
To use full-featured product, you have to purchase a license for Combo Cleaner. Limited three days free trial available.

More examples of websites similar to iosdfnc[.]com are optavut[.]com, landoseseq[.]com, and security-protect[.]systems. Most of them pretend to be official Apple websites, display legitimate notifications, etc. Although these pages have nothing to do with any of the official Apple pages and all their messages, notifications are fake. It is worthwhile to mention that websites of this kind can be used to trick visitors into installing browser hijackers, adware-type applications, or other PUAs.

How did potentially unwanted applications install on my computer?

Quite often, potentially unwanted apps are distributed through deceptive advertisements and downloaders, installers for other programs. There are advertisements on the Internet that, if clicked, can run certain scripts designed to download (or even install) unwanted software. In other cases, users unintentionally download or install PUAs together with other wanted programs. To be more precise, when users do not check downloaders, installers for "Custom", "Advanced" or other settings that could be used to decline undesired offers. In other words, users allow for PUAs that are included in downloaders, installers to be downloaded or installed when they leave those settings unchanged. This distribution method is called "bundling".

How to avoid installation of potentially unwanted applications?

It is recommended to download all programs from official websites and via direct links and avoid using sources. For example, third-party downloaders, torrent clients, eMule (and other Peer-to-Peer networks), unofficial websites. Third-party installers should not be used as well. They can be used to trick users into installing malware. Also, it is advisable to check if there are any "Advanced", "Custom" and other similar settings that could be used to decline unwanted offers before finishing downloads and installations. Additionally, it is recommended not to click on advertisements that appear while visiting shady websites. Those ads can cause downloads, installations of unwanted applications, or open various unreliable pages. Unknown, unwanted, or suspicious extensions, plug-ins, or add-ons installed on a browser or programs of this kind installed on the operating system should be removed/uninstalled. If your computer is already infected with PUAs, we recommend running a scan with Combo Cleaner Antivirus for macOS to automatically eliminate them.

Text in the fake system pop-up message:

YOUR IPHONE HAS BEEN COMPROMISED
Immediate Action Is Required!
[OK]

Text in the background:

Apple Security
Warning!
Your iPhone was hacked by a virus after visiting an adult website and your screen was recorded!
If this problem is not resolved within two minutes, the video recording and all your photos might be leaked.

In order to fix the problem you must download trusted VPN app and activate data protection.

1 minutes and 53 seconds
[Remove Virus]
Detected by Apple

Screenshot of the second iosdfnc[.]com variant:

iosdfnc.com pop-up scam second variant

Text in this page:

Your Internet Connection May be Not Secure!

Install Norton Secure VPN From the Appstore For Free and Protect Your Internet Connection!

How to Protect Your Connection:

Step 1. Click on the Button “Download” Below and Install the Recommended Application from the Appstore (Free)

Step 2. Open the Installed Application and Protect Your Internet Connection

DOWNLOAD

Screenshot of the app promoted via second iosdfnc[.]com variant:

iosdfnc.com pop-up scam application advertised on second variant

To enable pop-up blocking, fraudulent website warnings, and remove web browsing data in mobile Apple devices, follow these steps:

First, go to "Settings", and then scroll down to find and tap "Safari".

remove pop-ups and clear cache step 1

Check if the "Block Pop-ups" and "Fraudulent Website Warning" toggles are enabled. If not, enable them immediately. Then, scroll down and tap "Advanced".

disable pop-ups and clear cache step 2

Tap "Website Data" and then "Remove All Website Data".

disable pop-ups and clear cache step 3

Instant automatic Mac malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Combo Cleaner is a professional automatic malware removal tool that is recommended to get rid of Mac malware. Download it by clicking the button below:
▼ DOWNLOAD Combo Cleaner for Mac By downloading any software listed on this website you agree to our Privacy Policy and Terms of Use. To use full-featured product, you have to purchase a license for Combo Cleaner. Limited three days free trial available.

Quick menu:

Video showing how to remove adware and browser hijackers from a Mac computer:

Potentially unwanted applications removal:

Remove potentially unwanted applications from your "Applications" folder:

mac browser hijacker removal from applications folder

Click the Finder icon. In the Finder window, select "Applications". In the applications folder, look for "MPlayerX", "NicePlayer", or other suspicious applications and drag them to the Trash. After removing the potentially unwanted application(s) that cause online ads, scan your Mac for any remaining unwanted components.

Remove iosdfnc.com pop-up related files and folders:

Finder go to folder command

Click the Finder icon, from the menu bar. Choose Go, and click Go to Folder...

step1Check for adware-generated files in the /Library/LaunchAgents folder:

removing adware from launch agents folder step 1

In the Go to Folder... bar, type: /Library/LaunchAgents

removing adware from launch agents folder step 2
In the “LaunchAgents” folder, look for any recently-added suspicious files and move them to the Trash. Examples of files generated by adware - “installmac.AppRemoval.plist”, “myppes.download.plist”, “mykotlerino.ltvbit.plist”, “kuklorest.update.plist”, etc. Adware commonly installs several files with the same string.

step2Check for adware generated files in the /Library/Application Support folder:

removing adware from application support folder step 1

In the Go to Folder... bar, type: /Library/Application Support

removing adware from application support folder step 2
In the “Application Support” folder, look for any recently-added suspicious folders. For example, “MplayerX” or “NicePlayer”, and move these folders to the Trash.

step3Check for adware-generated files in the ~/Library/LaunchAgents folder:

removing adware from ~launch agents folder step 1


In the Go to Folder bar, type: ~/Library/LaunchAgents

removing adware from ~launch agents folder step 2

In the “LaunchAgents” folder, look for any recently-added suspicious files and move them to the Trash. Examples of files generated by adware - “installmac.AppRemoval.plist”, “myppes.download.plist”, “mykotlerino.ltvbit.plist”, “kuklorest.update.plist”, etc. Adware commonly installs several files with the same string.

step4Check for adware-generated files in the /Library/LaunchDaemons folder:

removing adware from launch daemons folder step 1
In the Go to Folder... bar, type: /Library/LaunchDaemons

removing adware from launch daemons folder step 2
In the “LaunchDaemons” folder, look for recently-added suspicious files. For example “com.aoudad.net-preferences.plist”, “com.myppes.net-preferences.plist”, "com.kuklorest.net-preferences.plist”, “com.avickUpd.plist”, etc., and move them to the Trash.

step 5 Scan your Mac with Combo Cleaner:

If you have followed all the steps in the correct order you Mac should be clean of infections. To be sure your system is not infected run a scan with Combo Cleaner Antivirus. Download it HERE. After downloading the file double click combocleaner.dmg installer, in the opened window drag and drop Combo Cleaner icon on top of the Applications icon. Now open your launchpad and click on the Combo Cleaner icon. Wait until Combo Cleaner updates it's virus definition database and click "Start Combo Scan" button.

scan-with-combo-cleaner-1

Combo Cleaner will scan your Mac for malware infections. If the antivirus scan displays "no threats found" - this means that you can continue with the removal guide, otherwise it's recommended to remove any found infections before continuing.

scan-with-combo-cleaner-2

After removing files and folders generated by the adware, continue to remove rogue extensions from your Internet browsers.

iosdfnc.com pop-up removal from Internet browsers:

safari browser iconRemove malicious extensions from Safari:

Remove iosdfnc.com pop-up related Safari extensions:

safari browser preferences

Open Safari browser, from the menu bar, select "Safari" and click "Preferences...".

safari extensions window

In the preferences window, select "Extensions" and look for any recently-installed suspicious extensions. When located, click the "Uninstall" button next to it/them. Note that you can safely uninstall all extensions from your Safari browser - none are crucial for normal browser operation.

  • If you continue to have problems with browser redirects and unwanted advertisements - Reset Safari.

firefox browser iconRemove malicious plug-ins from Mozilla Firefox:

Remove iosdfnc.com pop-up related Mozilla Firefox add-ons:

accessing mozilla firefox add-ons

Open your Mozilla Firefox browser. At the top right corner of the screen, click the "Open Menu" (three horizontal lines) button. From the opened menu, choose "Add-ons".

removing malicious add-ons from mozilla firefox

Choose the "Extensions" tab and look for any recently-installed suspicious add-ons. When located, click the "Remove" button next to it/them. Note that you can safely uninstall all extensions from your Mozilla Firefox browser - none are crucial for normal browser operation.

  • If you continue to have problems with browser redirects and unwanted advertisements - Reset Mozilla Firefox.

chrome-browser-iconRemove malicious extensions from Google Chrome:

Remove iosdfnc.com pop-up related Google Chrome add-ons:

removing malicious google chrome extensions step 1

Open Google Chrome and click the "Chrome menu" (three horizontal lines) button located in the top-right corner of the browser window. From the drop-down menu, choose "More Tools" and select "Extensions".

removing malicious Google Chrome extensions step 2

In the "Extensions" window, look for any recently-installed suspicious add-ons. When located, click the "Trash" button next to it/them. Note that you can safely uninstall all extensions from your Google Chrome browser - none are crucial for normal browser operation.

  • If you continue to have problems with browser redirects and unwanted advertisements - Reset Google Chrome.

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About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for pcrisk.com since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

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Malware activity

Global malware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

QR Code
iosdfnc.com pop-up QR code
A QR code (Quick Response Code) is a machine-readable code which stores URLs and other information. This code can be read using a camera on a smartphone or a tablet. Scan this QR code to have an easy access removal guide of iosdfnc.com pop-up on your mobile device.
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