Can there be a Trojan inside your system even if the anti-malware don´t detects any?

HuskyJ

Estimable
Dec 4, 2015
5
0
4,520
1
[strike]Sorry long title.[/strike]

Story

Recently I found a password stealer while doing a PC cleaning. It was the strangest kind of malware as it was stuck to an file that would never be executed at all. So my system technically had a malware but it wasn´t doing anything. Not that it mattered much since I haven´t used this pc for months since I download said file. Since then however I have had this feeling of paranoia of my system actually being infected and I just don´t notice. I ran a malware scan almost twice daily for a week and even now it says that nothing was found. Is it completely safe?

Info

I use malware bytes as my anti-malware. I run a threat scan and a custom check all computer scan whenever I can and nothing as been detected for a month.

The file in question came with a torrent file. I´ll leave the details out, just now it was a file that would´ve never been executed.
 

HuskyJ

Estimable
Dec 4, 2015
5
0
4,520
1


You mean malware? Nothing. That's what I find so sketchy. The trojan was attached to one, and only one file, and on top of that it was a non executable file so it would never trigger an infection. I have downloaded other torrent files from the same source about 5 times, let alone all other files I've downloaded via torrent, and this was the only warning I've ever gotten. I guess it could've been a fake positive but you can never be sure when it comes to malware.
 

HuskyJ

Estimable
Dec 4, 2015
5
0
4,520
1


I believe it was a dll file. The anti-malware said it quarentined and deleted it. This happened a month ago and I've already deleted all related files.
 
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