If your Mac faces the threat of the “This file was downloaded on an unknown date” pop-up, prompt action is crucial. This guide aims to help you eliminate the malicious adware and reinforce your Mac’s defenses.
This file was downloaded on an unknown date Mac
This specific adware targets Mac users through intrusive pop-ups. Such intrusive pop-ups usually are generated by either a Pirrit or an AdLoad malware variant, both known to target Mac users. Once it infiltrates your system, be prepared for a barrage of ads, unexpected redirects, and the potential installation of other unwanted applications.
Details
| Name | PUP, Adware |
| Type | Adware / Potentially Unwanted Application / Mac Virus |
| Removal Time | Around 5 Minutes |
| Detection Tool |
See if the System is impacted by This file was downloaded on an unknown date
Down Load
Malware Removal Tool
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How Did I Get It?
This pop-up and its associated software often infiltrate Mac systems bundled with other software or through deceptive prompts on untrustworthy websites, catching users off guard.
It commonly employs a tactic associated with AdLoad malware, using misleading “Update Adobe Flash Player” alerts to deceive users.
What Does It Do?
“This file was downloaded on an unknown date” is designed to flood your web experience with ads, tweaking browser settings in Mozilla Firefox, Google Chrome, Internet Explorer, and Safari. The result is an overwhelming amount of advertising.
These changes can lead to reduced Mac performance and the threat of malicious redirects. In addition, the pop-up engages in covert data collection, tracking your activities and extracting personal data. Swift removal is advised to stop its ad onslaught and safeguard your privacy.
Is It a Mac Virus?
While not classified as a virus in the traditional sense, removing Nbp from your Mac is vital to prevent security risks. With its adware features, potentially unwanted program (PUP) characteristics, and the possibility of backdoor exploits, it presents a significant concern.
Remove “This file was downloaded on an unknown date” Pop-ip from Your Mac
To counter the threats posed by this app, follow the comprehensive removal guide below. It’s essential to perform a thorough scan of your Mac using reliable anti-malware software to locate and eliminate any traces of this adware.
Ventsislav Krastev
Ventsislav is a cybersecurity expert at SensorsTechForum since 2015. He has been researching, covering, helping victims with the latest malware infections plus testing and reviewing software and the newest tech developments. Having graduated Marketing as well, Ventsislav also has passion for learning new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management, Network Administration and Computer Administration of System Applications, he found his true calling within the cybersecrurity industry and is a strong believer in the education of every user towards online safety and security.
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Steps to Prepare Before Removal:
Before starting to follow the steps below, be advised that you should first do the following preparations:
- Backup your files in case the worst happens.
- Make sure to have a device with these instructions on standy.
- Arm yourself with patience.
- 1. Scan for Mac Malware
- 2. Uninstall Risky Apps
- 3. Clean Your Browsers
Step 1: Scan for and remove This file was downloaded on an unknown date files from your Mac
When you are facing problems on your Mac as a result of unwanted scripts and programs such as This file was downloaded on an unknown date, the recommended way of eliminating the threat is by using an anti-malware program. SpyHunter for Mac offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.
Quick and Easy Mac Malware Video Removal Guide
Bonus Step: How to Make Your Mac Run Faster?
Mac machines maintain probably the fastest operating system out there. Still, Macs do become slow and sluggish sometimes. The video guide below examines all of the possible problems that may lead to your Mac being slower than usual as well as all of the steps that can help you to speed up your Mac.
Step 2: Uninstall This file was downloaded on an unknown date and remove related files and objects
1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:
2. Find Activity Monitor and double-click it:
3. In the Activity Monitor look for any suspicious processes, belonging or related to This file was downloaded on an unknown date:
4. Click on the "Go" button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.
5. In the Applications menu, look for any suspicious app or an app with a name, similar or identical to This file was downloaded on an unknown date. If you find it, right-click on the app and select “Move to Trash”.
6. Select Accounts, after which click on the Login Items preference. Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to This file was downloaded on an unknown date. Check the app you want to stop from running automatically and then select on the Minus (“-“) icon to hide it.
7. Remove any leftover files that might be related to this threat manually by following the sub-steps below:
- Go to Finder.
- In the search bar type the name of the app that you want to remove.
- Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
- If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.
In case you cannot remove This file was downloaded on an unknown date via Step 1 above:
In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:
1. Click on "Go" and Then "Go to Folder" as shown underneath:
2. Type in "/Library/LauchAgents/" and click Ok:
3. Delete all of the virus files that have similar or the same name as This file was downloaded on an unknown date. If you believe there is no such file, do not delete anything.
You can repeat the same procedure with the following other Library directories:
→ ~/Library/LaunchAgents
/Library/LaunchDaemons
Tip: ~ is there on purpose, because it leads to more LaunchAgents.
Step 3: Remove This file was downloaded on an unknown date – related extensions from Safari / Chrome / Firefox
This file was downloaded on an unknown date-FAQ
What is This file was downloaded on an unknown date on your Mac?
The This file was downloaded on an unknown date threat is probably a potentially unwanted app. There is also a chance it could be related to Mac malware. If so, such apps tend to slow your Mac down significantly and display advertisements. They could also use cookies and other trackers to obtain browsing information from the installed web browsers on your Mac.
Can Macs Get Viruses?
Yes. As much as any other device, Apple computers do get malware. Apple devices may not be a frequent target by malware authors, but rest assured that almost all of the Apple devices can become infected with a threat.
What Types of Mac Threats Are There?
According to most malware researchers and cyber-security experts, the types of threats that can currently infect your Mac can be rogue antivirus programs, adware or hijackers (PUPs), Trojan horses, ransomware and crypto-miner malware.
What To Do If I Have a Mac Virus, Like This file was downloaded on an unknown date?
Do not panic! You can easily get rid of most Mac threats by firstly isolating them and then removing them. One recommended way to do that is by using a reputable malware removal software that can take care of the removal automatically for you.
There are many Mac anti-malware apps out there that you can choose from. SpyHunter for Mac is one of the reccomended Mac anti-malware apps, that can scan for free and detect any viruses. This saves time for manual removal that you would otherwise have to do.
How to Secure My Data from This file was downloaded on an unknown date?
With few simple actions. First and foremost, it is imperative that you follow these steps:
Step 1: Find a safe computer and connect it to another network, not the one that your Mac was infected in.
Step 2: Change all of your passwords, starting from your e-mail passwords.
Step 3: Enable two-factor authentication for protection of your important accounts.
Step 4: Call your bank to change your credit card details (secret code, etc.) if you have saved your credit card for online shopping or have done online activiites with your card.
Step 5: Make sure to call your ISP (Internet provider or carrier) and ask them to change your IP address.
Step 6: Change your Wi-Fi password.
Step 7: (Optional): Make sure to scan all of the devices connected to your network for viruses and repeat these steps for them if they are affected.
Step 8: Install anti-malware software with real-time protection on every device you have.
Step 9: Try not to download software from sites you know nothing about and stay away from low-reputation websites in general.
If you follow these reccomendations, your network and Apple devices will become significantly more safe against any threats or information invasive software and be virus free and protected in the future too.
More tips you can find on our MacOS Virus section, where you can also ask any questions and comment about your Mac problems.
About the This file was downloaded on an unknown date Research
The content we publish on SensorsTechForum.com, this This file was downloaded on an unknown date how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific macOS issue.
How did we conduct the research on This file was downloaded on an unknown date?
Please note that our research is based on an independent investigation. We are in contact with independent security researchers, thanks to which we receive daily updates on the latest malware definitions, including the various types of Mac threats, especially adware and potentially unwanted apps (PUAs).
Furthermore, the research behind the This file was downloaded on an unknown date threat is backed with VirusTotal.
To better understand the threat posed by Mac malware, please refer to the following articles which provide knowledgeable details.