Virus.DOS.AS.594 or AS is a virus that runs on MS-DOS.
AS is not a dangerous memory resident parasitic virus. It hooks INT 21h and writes itself to the end of COM files that are executed. The infected files contain ID-word "AS" at the offset 0017h. After 16th infections the virus displays the message:
Call Ghost Busters for cure virus! Xa-Xa-Xa!!!$
The virus also contains the text string:
*** (C) Skvernuk & Company Inc. Minsk 1993 ***