I am seeing a window briefly appear and immediately disappear before I can see any details about it. It happens very infrequently, maybe around every 4 hours but I can't confirm it's on a regular interval. It does seem to be a white background and not a console window, but it's so fast, I can't even be sure of that. I've seen it happen with Chrome or Firefox open so it's not specific to one browser if it's browser-related at all. I'm using Windows 10 Pro x64.
My laptop is only a few months old and I haven't done much that should've been very risky. The riskiest things I can think of are:
- I've visited a couple websites that were very pop-up ad-heavy. I always just closed the browser window without interacting with the content. I use Chrome which is currently updating from v58.0.3029.110.
- I've been getting a lot of spam in Outlook 2010. When I click a message to delete it, it automatically opens it in the reading pane. Any images are automatically blocked. I haven't opened any attachments if there have been any.
- I've downloaded a few Visual Studio 2013 extensions listed in the VS Gallery. A couple of those I did have to visit the developers' websites to download and then run an installer myself.
- Downloaded and opened a visual studio project from here: https://github.com/mehdime/DbContextScope.
- Installed FreeConferenceCall.com windows app and Chrome plugin.
- Downloaded and run ILSpy from github.
- Installed KeePass from https://superb-dca2.dl.sourceforge.net/project/keepass.
- Installed Paint.NET with a few user created plugins that I had been using for a long time on Windows 7.
- Installed Share.IT from the Windows store (for transferring files with iphone)
And maybe a few other things along these lines. The Paint.NET plugins are probably the biggest risk, though I would be surprised if they were dirty.
I tried my old go-to from a decade ago, Spybot Search & Destroy, but it failed to install its virus definitions so I uninstalled it. That made me more suspicious of malware. I've also noticed Chrome will lock up after I delete a range of browser history. For instance if I search google.com and delete all results. I assumed it was a Chrome bug, but now am wondering if that's malware too. Windows defender has real-time protection on and didn't find anything in a quick scan. Any tips for a way to identify this popup window or a good scan to run?
Edited by xr280xr, 14 June 2017 - 04:25 PM.