It is a dangerous not memory resident encrypted parasitic virus. It searches for .COM-files and writes itself to their ends. It contains the internal text string:
*.COM SC:DOS*.COM
C:COMMAND.COM C:CHKLIST.CPS C:DOSCHKLIST.CPS C:SENTRY.LOG C:NAV_._NO
HeyHeyHeyHeyHeyHeyHeyHeyHeyHeyHeyHeyHeyHeyHeyHeyHeyHeyHeyHeyHeyHeyHey
HowDo YouDo HowDo YouDo HowDo YouDo HowDo YouDo HowDo YouDo HowDo
LayOf LayOf LayOf LayOf LayOf Lay Of Lay Of Lay Off layofffffffff/up/fffff
v[V]=r[ê]*i[A]
Hey Hey Hey Hey Hey Hey Hey Hey
Froll
and deletes the files from the second line, manifests itself with the sound and video noise and halts PC.