win32:sality-o

[cafe]

Avast detected this trojan win32:sality-o . However, we have been not able to delete it. I looked for some info here, but we found nothing. Is there anyone, please, that help up to have a clue how to delete it from our computer. We are currently using the last version of the professional edition.

[FreewheelinFrank]

http://www.ca.com/us/securityadvisor/virusinfo/virus.aspx?id=52797

Try a boot time scan with avast! Right click the scanner screen, select 'schedule a boot time scan' and reboot when requested.

It's a file infector, so you may find various .exe's infected. Don't know if avast! will be able to repair them.

[DavidR]

What is the infected file name, where was it found e.g. (C:\windows\system32\infected-file-name.xxx) ?  Check the avast! Log Viewer (right click the avast 'a' icon), Warning section, this contains information on all avast detections.

Why couldn't you delete it, what errors were displayed, etc. ?
As Frank said a boot time scan should be able to get round this problem, if it was permissions or in use errors that stopped you.
Or do you mean it keeps coming back ?

Deletion isn't really a good first option (you have none left), 'first do no harm' don't delete, send virus to the chest and investigate.