| Name: | NumLock |
| Aliases: | Win32.HLLW.Nulock, |
| Ports: | |
| Files: | |
| Created: | |
| Requires: | |
| Actions: | Worm / Destructive trojan |
| It spreads through floppies inserted in A:\. On Tuesdays the wormdeletes User.dat, System.dat, User.da0 and System.da0. | |
| Versions: | |
| Registers: | HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKEY_CLASSES_ROOT\dllfile\shell\open\command |
| Notes: | Works on Windows. |
| Country: | |
| Program: | Written in Delphi. |