A random window pops up at random times

[monitony]

Hello I've bought a fresh Macbook and after Sonoma installation I faced a problem – a small window pops up at different times. I have no idea what is it but it looks like spam window without any content.

 

[webbga]

Just curious. When it pops up is there an application name in the upper left corner by any chance?

 

[monitony]

I will check next time

 

[monitony]

So I've got it again. Seems like it's Mail thing 🤨

 

[monitony]

Okay it seems that this window doesn't belong to Mail or any other app. It's just a random ahh window that appear at random times. My wife has the same problem after updating to Sonoma

 

[diego.caraballo]

Hello I've bought a fresh Macbook and after Sonoma installation I faced a problem – a small window pops up at different times. I have no idea what is it but it looks like spam window without any content.

Hi!
Check for malware on both machines: https://www.malwarebytes.com/

Also, check the DNS information of your network: Apple logo > System preferences > "DNS" on search box > click on "DNS servers" result. A list should appear (repeat if not)
Normally you should find your router IP address here (and a second entry for the IPV6 version of it).
Any other random IP could signal a compromised router.

 

[monitony]

Hi!
Check for malware on both machines: https://www.malwarebytes.com/

Also, check the DNS information of your network: Apple logo > System preferences > "DNS" on search box > click on "DNS servers" result. A list should appear (repeat if not)
Normally you should find your router IP address here (and a second entry for the IPV6 version of it).
Any other random IP could signal a compromised router.

Thanks for the suggestion. I did a scan and checked DNS. No luck nothing suspicious there

 

[fisherking]

consider, too, what apps you might have installed that are on both macs...

 

[diego.caraballo]

Thanks for the suggestion. I did a scan and checked DNS. No luck nothing suspicious there

Right-click on the message shows something?

Also, try to open Activity Monitor when the window appears.
You will need two occurrences, the first one to identify the process name (you will know after killing the process and the message disappears).
In the second occurrence, click on the process name, then Info, then Open Files and Ports.
A list of files will open and then you can pinpoint something out of place.

If the affected process is Safari, then check Safari Extensions and also enable the Developer Mode (in Safari Settings), and click "Empty Caches" on the Developer menu.

 

[monitony]

Right-click on the message shows something?

Also, try to open Activity Monitor when the window appears.
You will need two occurrences, the first one to identify the process name (you will know after killing the process and the message disappears).
In the second occurrence, click on the process name, then Info, then Open Files and Ports.
A list of files will open and then you can pinpoint something out of place.

If the affected process is Safari, then check Safari Extensions and also enable the Developer Mode (in Safari Settings), and click "Empty Caches" on the Developer menu.

Yes here's the right click popup. When I hit it nothing happens. Also identifying the right process is difficult in my case because Activity monitor contains lots and lost of processes.

 

[diego.caraballo]

Yes here's the right click popup. When I hit it nothing happens. Also identifying the right process is difficult in my case because Activity monitor contains lots and lost of processes.

If you can, install XCode. Then open the Accessibility Inspector, use the crosshair and select the offending window.

Other options are mentioned here:

How to identify which process is running which window in Mac OS X?

I’d like to know if it is possible to identify which process is responsible for creating/managing a window in Mac OS X. For example, when multiple instances of an application are started, how can...

superuser.com

Also, check if you have Adobe Air and/or Flash Player installed.
Finder > Applications > Utilities.
Uninstall both. If they are too old, you will need to download an uninstaller from the Adobe web.