I keep getting a popup that disappears as soon as it shows up which may be a virus

OK SO basically I got an email from a “FEDEX agent” that I idiotically opened on a school computer (my teacher disconnected and fixed the computer thankfully, and was nice about it, it’s just that I was waiting on a parcel that never arriv… Continue reading I keep getting a popup that disappears as soon as it shows up which may be a virus

What is the best way to screen potentially compromised USB or flash devices?

I’ve got some flash devices. It is a bit like playing Russian roulette. The devices are of unknown origin containing information of unknown value. However, the potential value is great enough to be worth the effort to recover… Continue reading What is the best way to screen potentially compromised USB or flash devices?

What do "Mac Ads Cleaner" and "Mac App Cleaner" do while installed?

Recently I responded to a suggestion that I “upgrade Flash” on my macOS system only do end up with several applications running, and intruding into my browser and desktop that I did not (mean to) install:

  • Mac Ads Cleaner
  • Mac App Cleaner
  • Porn Cleaner

I followed instructions I found online for removing these apps and believe they are gone (Bitdefender’s virus and malware virus scan shows no remaining malicious software).

However, I wonder what they did while they were on my machine. What I could see is that they were very intrusive: launching themselves, setting themselves up to re-launch on start, resetting my browser’s homepage to a spoof “safe” search engine — even popping up a window when they were installed by moving to the Trash. But I would like to know what else they did while installed *that I couldn’t see.

What do these apps do? Have they done any lasting damage? Or are they only a nuisance while installed?


Note that this is not a duplicate of this question. Here the question is what these specific (and common and well known) apps did when installed. (For example, did they capture passwords, erase files, etc.?)

Continue reading What do "Mac Ads Cleaner" and "Mac App Cleaner" do while installed?