Additional Details
JH stays resident in memory and infects EXE files. The files get
infection almost every time they are accessed. Copying or
renaming is will do the job. Virus avoids infecting some
anti-virus programs.
The virus activates any time at September. It shows the following
text in the middle of the screen written in red colour:
-=> ERROR Virus Version 0.1B (C) 1994 JH <=-
[Analysis: Mikko Hypponen, F-Secure]