I think i opened a malicious file a long time ago can I be part of a botnet without my knowledge?

Some years ago ( around 2017-18) I got an email about a parking ticket with the “proof” attached as a file that didn’t open in my PC. I figured out it was a scam – malware as the file was a sort of executable

Anyways I just deleted the file and continued with my life as the file didn’t make anything notable.

Yesterday I was reading that this sort of emails are the main way of distributing trickbot and I’m afraid my PC might be part of a botnet without my knowledge as it’s been present since 2016

I want to backup my files and nuke the PC but how I’m i sure I don’t backup the potential hidden virus aswell.

How can I create a clean backup so i can nuke my PC and restore the backup?

submitted by /u/Papux200
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