Dalian stays resident in memory and infects EXE files when they are listed with the DIR command.
Dalian contains this text:
Gene_1991_in DUT (Dalian China)
It randomly displays 'Gene !' on screen. Otherwise the virus just spreads.
This virus was distributed on a game CD produced in China in July 1997.
Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.
Description Created: Mikko Hypponen, F-Secure