Der er slet ingen tvivl om en virus.
http://securityresponse.symantec.com/avcenter/venc/data/backdoor.schoolbus.b.html
Start your Symantec antivirus program, and make sure that it is configured to scan "ALL" the files.
3. Reversing the changes made to the registry
CAUTION: Symantec strongly recommends that you back up the registry before you make any changes to it. Incorrect changes to the registry can result in permanent data loss or corrupted files. Modify the specified keys only. Read the document, "How to make a backup of the Windows registry," for instructions.
Click Start, and then click Run. (The Run dialog box appears.)
Type regedit and then click OK. (The Registry Editor opens.)
Navigate to the key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
In the right pane, delete the value:
rundll "c:\windows\system\rundll.exe"
Navigate to the key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Active Setup\
Installed Components\Rundll
In the right pane, delete the value:
rundll "c:\windows\system\rundll.exe"
rundll32 "c:\windows\system\rundll32.exe"
Exit the Registry Editor.
VH Palle Hansen