Unknown User Account?

Hi i’ve had a severe mbr rootkit infection and got rid off it a few days ago.

I was able to clean it with aswmbr and after that avast(boot-time scan) and malwarebytes couldn’t find anymore infections
Today tough i wanted to change my (limited) account rights for malwarebytes so i could start the program without always typing the admin password always, however it showed me i have two unknown user accounts and in brackets a long row of numbers beginning with S
They are the same characters except the last number is 1000 by one and 1002 by the other

Are they intended?
Can i remove them?
If yes how?
What will happen if i click remove?

I have a system which is german
But i guess it won’t make a difference

Unbekanntes Konto (S-1-5-21-471189788-2949073569-851638926-1000) and
Unbekanntes Konto (S-1-5-21-471189788-2949073569-851638926-1002)
they both have special rights

Tell me if you need a screeny
I hope someone knows what this is. ???

Edit: Also i can’t uncheck the box which says special rights

another edit: Seems like these are the remains if 2 accounts i’ve deleted before
guess it doesn’t matter.

Hi TribeWars,

This could wel have been through your own actions after a system restore. Re the discussion I found here:
http://www.vistaheads.com/forums/microsoft-public-de-windows-vista-sicherheit/71546-unbekanntes-konto.html

Die Einträge können auf verschiedene Weisen entstehen: Neuinstallation des Betriebssystems, Freigabe über ein Netzwerk, gemeinsame Nutzung externer Fesplatten an mehreren Rechner... Also immer dann, wenn unter einem Konto auf die Dateien zugegriffen wird, dieses Konto auf dem aktuellen System aber nicht vorhanden ist.
source of quote: Jan Tittel, MS answers -source link can be found here: http://answers.microsoft.com/de-de/windows/forum/windows_7-security/unbekanntes-konto/f2448b97-42b3-424e-b9d7-0884ceee021c

polonus

Thats right, i did system restore cause of the infection posted above

Hi TribeWars, sorry I don’t have a suggestion for your malware problem.

Please go to your profile and hide your gmail address so a mail spammer can’t get it.

Regards

Btw, the problem is solved
Just saying
Thx for the E-mail-hiding-tip

You’re welcome. It is now hidden. :slight_smile: