I dont know what happened, suddenly every window I open, opens another window with this address http://dataloading.net/j/pne
that keeps popping up constantly even when I close it
do I need an antivirus? what should I do? this morning a window opened informing my computer has a trojan that i had 30 seconds to clean before losing forever information... what to think and do?
MacBook Air (11-inch, Early 2014), macOS Sierra (10.12.4)
Fixes for Adware and Pop-ups
Fixing Safari from Popups
[The following comes from user stevejobsfan0123. I have made minor changes to adapt to this presentation.]
Fix Some Browser Pop-ups That Take Over Safari
Common pop-ups include a message saying the government has seized your computer and you must pay to have it released (often called "Moneypak"), or a phoney message saying that your computer has been infected, and you need to call a tech support number (sometimes claiming to be Apple) to get it resolved. First, understand that these pop-ups are not caused by a virus and your computer has not been affected. This "hijack" is limited to your web browser. Also, understand that these messages are scams, so do not pay any money, call the listed number, or provide any personal information. This article will outline the solution to dismiss the pop-up.
Quit Safari
Usually, these pop-ups will not go away by either clicking "OK" or "Cancel." Furthermore, several menus in the menu bar may become disabled and show in gray, including the option to quit Safari. You will likely have to force quit Safari. To do this, press Command + option + ESC, select Safari, and press Force Quit.
Relaunch Safari
If you relaunch Safari, the page will reopen. To prevent this from happening, hold down the 'Shift' key while opening Safari. This will prevent windows from the last time Safari was running from reopening.
This will not work in all cases. The shift key must be held at the right time, and in some cases, even if done correctly, the window reappears. In these circumstances, after force quitting Safari, turn off Wi-Fi or disconnect Ethernet, depending on how you connect to the Internet. Then relaunch Safari normally. It will try to reload the malicious web page, but without a connection, it won't be able to. Navigate away from that page by entering a different URL, i.e. www.apple.com, and trying to load it. Now you can reconnect to the Internet, and the page you entered will appear rather than the malicious one.
Fixes for Adware and Pop-ups
Fixing Safari from Popups
[The following comes from user stevejobsfan0123. I have made minor changes to adapt to this presentation.]
Fix Some Browser Pop-ups That Take Over Safari
Common pop-ups include a message saying the government has seized your computer and you must pay to have it released (often called "Moneypak"), or a phoney message saying that your computer has been infected, and you need to call a tech support number (sometimes claiming to be Apple) to get it resolved. First, understand that these pop-ups are not caused by a virus and your computer has not been affected. This "hijack" is limited to your web browser. Also, understand that these messages are scams, so do not pay any money, call the listed number, or provide any personal information. This article will outline the solution to dismiss the pop-up.
Quit Safari
Usually, these pop-ups will not go away by either clicking "OK" or "Cancel." Furthermore, several menus in the menu bar may become disabled and show in gray, including the option to quit Safari. You will likely have to force quit Safari. To do this, press Command + option + ESC, select Safari, and press Force Quit.
Relaunch Safari
If you relaunch Safari, the page will reopen. To prevent this from happening, hold down the 'Shift' key while opening Safari. This will prevent windows from the last time Safari was running from reopening.
This will not work in all cases. The shift key must be held at the right time, and in some cases, even if done correctly, the window reappears. In these circumstances, after force quitting Safari, turn off Wi-Fi or disconnect Ethernet, depending on how you connect to the Internet. Then relaunch Safari normally. It will try to reload the malicious web page, but without a connection, it won't be able to. Navigate away from that page by entering a different URL, i.e. www.apple.com, and trying to load it. Now you can reconnect to the Internet, and the page you entered will appear rather than the malicious one.
The "dataloading" site is one that is known to be associated with the VSearch adware. You're almost certainly infected. Malwarebytes will take care of that problem for you.
The window that said you were infected was a scam. Ignore it. It was attempting to scare you into either calling a phone number, to be scammed into paying for "service," or downloading a scam app. It's possible this was the result of a bad ad injected in your web browser by VSearch, or it may simply be that you stumbled across a bad site.
No. It sounds like you have adware installed on your Mac. Try download and installing from www.malwarebytes.org
See if it can remove the adware from you Mac.
do I need an antivirus for MacBook Air?
