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Details
WorkHard.1664
It is a dangerous memory resident parasitic virus. It patches DOS kernel, hooks 21h and writes itself to the end of COM and EXE files that are executed, opened, closed or accessed by DOS functions FindFirst/Next FCB (DIR command). The virus patches DOS kernel in not correct way and may halt the computer. Before return to host program the virus infects the C:COMMAND.COM file.
The virus also hooks INT 8 (timer) and on each timer tick checks the video mode. If video mode is No 13h (graphic mode) during half an hour, the virus in displays the message and halts the computer:
Don't play game !
Work hard for China ! |
