This is a dangerous memory resident encrypted parasitic virus. It hooks INT 21h and writes itself to the end of EXE files that are accessed. The virus does not infect the files: EMM386, SCAN, F-PROT. While installing memory resident the virus also infects the C:WINDOWSCOMMAND.COM and C:COMMAND.COM files (they are of EXE format in DOS 7.x).
The virus has a bug and may halt the system while installing memory resident. On March 27th the virus manifests themselves by a video effect.
The virus contains the text strings:
VANITAS++ v1.1 (c)GR97 by ANAX.Member of .
Everyone is Original. [E-75]Chill-Out.
