It is not a dangerous nonmemory resident parasitic virus. It writes itself to the middle of COM files. The virus infects files only when they are executed by another application (file commander or manager), i.e. when files are executed by the "COMMAND /c FileName" instruction. To realize this way of infection the virus first of all search for path to the COMMAND.COM file and infects its. The virus then scans the command for file name and infects it (if such string and file exist).
Depending on the current time and under debugger the virus disables the keyboards and displays the text:
I'm Sleep-walker.(LOCUST-3)