Virus or Something Else?

I help troubleshoot and maintain a couple of iMacs for friend's company. They called me the other day because their 2017 iMac Pro running OS 12.6.? suddenly slowed to a crawl and they were getting the constant beachball that would spin for thirty seconds or so then it would let you work for maybe 15-20 seconds then it would lock up again.


I did all the typical checking, looked at activity monitor, checked available hard drive space, etc. Nothing seemed out of place. They did get a Adobe Creative Cloud error message, when we used the "Fix" button on that error is got to about 40% then locked up and had to have a hard restart. I researched Adobe's website and reloaded the creative cloud from there. It would run and Photoshop would run after that, but the beachball persisted.


When I checked their TM backup TM couldn't access the disk. I checked the drive and it showed zero items and the entire 4TB available. I know for a fact that time machine had been working for a few months.


This sounds to me like, virus, malware, ransomware, or whatever the latest evil is out there. I'm just wondering if there is something I am missing. Can anyone think of another explanation for these symptoms?


I am checking today to see if there is a software update available but if everything is up to date or that fix doesn't work I'm going to be left with a lot of work doing a clean install and getting them back to where they were. Suggestions?

iMac Pro

Posted on Jan 19, 2023 8:45 AM

Reply
Question marked as Top-ranking reply

Posted on Jan 19, 2023 8:57 AM

PBFTom wrote:

This sounds to me like, virus, malware, ransomware, or whatever the latest evil is out there. I'm just wondering if there is something I am missing. Can anyone think of another explanation for these symptoms?

While such things do exist, the typically don't do anything like what you describe. Plus, they are ridiculously easy to spot. A more likely explanation is some kind of hardware failure. iMacs are notorious for mechanical hard drives with poor performance. Another likely explanation is any of a number of "clean up", "utility", or "security" apps. Pound for pound, these apps cause far more problems than all officially "malicious" software combined.

I am checking today to see if there is a software update available but if everything is up to date or that fix doesn't work I'm going to be left with a lot of work doing a clean install and getting them back to where they were. Suggestions?

If the computer is already having problems, a software update will only make those problems worse. A clean install isn't that much work and is the quickest way to isolate the problem between hardware and software. Just make sure when you restore from back to only restore user files and user accounts. Do not restore any apps, system settings, or "other files". Manually reinstall only those 3rd party apps that are absolutely necessary. If it still has problems, then it is probably a hardware failure.

Similar questions

3 replies
Question marked as Top-ranking reply

Jan 19, 2023 8:57 AM in response to PBFTom

PBFTom wrote:

This sounds to me like, virus, malware, ransomware, or whatever the latest evil is out there. I'm just wondering if there is something I am missing. Can anyone think of another explanation for these symptoms?

While such things do exist, the typically don't do anything like what you describe. Plus, they are ridiculously easy to spot. A more likely explanation is some kind of hardware failure. iMacs are notorious for mechanical hard drives with poor performance. Another likely explanation is any of a number of "clean up", "utility", or "security" apps. Pound for pound, these apps cause far more problems than all officially "malicious" software combined.

I am checking today to see if there is a software update available but if everything is up to date or that fix doesn't work I'm going to be left with a lot of work doing a clean install and getting them back to where they were. Suggestions?

If the computer is already having problems, a software update will only make those problems worse. A clean install isn't that much work and is the quickest way to isolate the problem between hardware and software. Just make sure when you restore from back to only restore user files and user accounts. Do not restore any apps, system settings, or "other files". Manually reinstall only those 3rd party apps that are absolutely necessary. If it still has problems, then it is probably a hardware failure.

This thread has been closed by the system or the community team. You may vote for any posts you find helpful, or search the Community for additional answers.

Virus or Something Else?

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.