It is not a dangerous memory resident parasitic virus. It hooks INT 21h and
writes itself to the end of COM and EXE files. Three hours after
installing into the memory the virus displays the message:
This playgame was writen by Nguyen The Quang, Nacentra Co.
101 – Hai Ba Trung, St.1 – Ho Chi Minh City, Phone: 96282
Press any key to Continue!