This is a dangerous non-memory resident parasitic virus. It searches for the files *.COM, A:README.COM, C:DOSCHKDSK.COM, COMMAND.COM, and overwrites them. On Friday, it decrypts and displays the following message:
This ain't no party, this ain't no disco, this ain't no foolin' around!
It also contains the encrypted text:
Copyright (C) 1991 Talking Heads Fan Club