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Windows 7: What is "mrt" and "mrtstub"?


06 Apr 2010   #1

Windows 7 Ultimate x64
 
 
What is "mrt" and "mrtstub"?

I was browsing through an external hard drive on my computer. The OS was not installed on it or anything. I saw this folder with a lock on it and inside are two files. mrt and mrtstub.

I Googled it but nothing really came up that helped me. Just things like "Is this maleware?" or "How can I prevent it from re-installing?" and it's made me worried now because I never installed anything on that drive. Just got files stored there.

I'm using Windows 7 x64 Ultimate.

Thank you.

Edit: I'm really scared now. It looks like this is a virus or something from I'm seeing in Google's searches!

My System SpecsSystem Spec
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06 Apr 2010   #2

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, clean install, upgrade disc
 
 

Welcome

Not to worry, that is part of MS update, which included the malicious software removal tool. Definately not a problem, but can help avoid one.

Just to reassure you, I found this for you.
http://www.mydigitallife.info/2007/0...-2000-and-2k3/

But since you are concerned just run a good A/v scan and this
http://www.malwarebytes.org/mbam.php

The two that you mentioned are ok, but if you did not scan for a while you may have others.
My System SpecsSystem Spec
06 Apr 2010   #3

Windows 7 Ultimate x64
 
 

Ahhhhhh....you don't know how much of a relief it is to hear you tell me that. Phew...

I actually didn't do a full scan but I will do one tonight as you suggested. I did scan the two items though with Kaspersky and according to Kaspersky they're clean. Plus, I'm reading that article now and I definitely feel much, much better.

I can't say thank you enough!

Thank you very much!

PS: Edit: It just had struck me as odd is all as I never installed anything on that drive. I'm on Windows 7. (Just wanted to throw that in there.)
My System SpecsSystem Spec
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06 Apr 2010   #4

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, clean install, upgrade disc
 
 

Maybe, I should thank you. All the members here volunteer to help others; but the real reward and payoff comes when someone, like yourself shows so much enthusiasm, makes me feel good.

Incidentally, that malwarebytes is excellent. Download and run a scan once a week. Many have used the big pay A/V and malwarebyts has found additional.
My System SpecsSystem Spec
06 Apr 2010   #5

Windows 7 Ultimate x64
 
 

Aw, haha. Well, that makes two of us!!

Okay, so I should go ahead and use it as it might show viruses/trojans or whatever that Kaspersky won't notice?
My System SpecsSystem Spec
06 Apr 2010   #6

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, clean install, upgrade disc
 
 

Yes, your A/V is basically for virus. Malware, which can include virus, is meant to mean something different. Malwarebytes is one of the best. I have it on my computer.

Furthermore when your subscription is up with your A/V, download and use Miscrosoft Security Essentials, it was made just for windows and its free. I think that you will like it better.
My System SpecsSystem Spec
06 Apr 2010   #7

Windows 7 Ultimate x64
 
 

Oh, I thought Kaspersky scanned for everything!! That's kinda scary knowing it only scans for viruses. I went ahead and am doing a Full Scan using MRT.exe right now.

I'll go and get Malwarebytes. Do you know if it will conflict, (for lack of a better word), with Kaspersky or anything? And is it easy to use? Also, is there anything else I should know? Are worms and trojans something different too or will Kaspersky take notice of them?

I had MSE before but I changed to Kaspersky thinking it was better then MSE.

Thank you for the suggestions.

Edit: Could you please provide a link to Malwarebytes? I would like to download it from a place you recommend.
My System SpecsSystem Spec
06 Apr 2010   #8

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, clean install, upgrade disc
 
 

Yes, it scans for everything, but MB does a much better job in the opinion of many of the members. Its free just run the scan once a week.

You can read this, too.

How to Use Windows Malicious Software Removal Tool (MRT.EXE) in Vista, XP, 2000 and 2K3 My Digital Life
Igave you the MB site that I use.
My System SpecsSystem Spec
06 Apr 2010   #9

Windows 7 Ultimate x64
 
 

Oops, I didn't notice that you already posted the link to Malwarebytes. Sorry about that! I did read that article though. It showed me how to get MRT started.

I'll scan with Kaspersky. I'll scan with MB. And I'll scan with MRT. Does that sound good and all? Is there more that I should do? Also, is the free MB good enough? Another thing, I read in that article that MRT scans behind the scenes so I don't have to schedule that or anything right?

Edit: I'll install and use MB tomorrow. I don't want to install anything while MRT is scanning. Don't want to mess anything up. I'm going to bed anyhow.

Thanks so much for your time and assistance! I really appreciate it. Without this site and it's helpful members I would truly be lost!!
My System SpecsSystem Spec
06 Apr 2010   #10

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, clean install, upgrade disc
 
 

It is not difficult to take care of the computer, normal maintenance and stay away from those sites that you know will cause trouble and do not use any registry cleaners; stay away from registry.
My System SpecsSystem Spec
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 What is "mrt" and "mrtstub"?




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