This is a Portuguese encrypted macro virus. It contains only one macro AutoOpen and replicates itself on opening documents.
In January in 2000 the virus erases all files on the C: drive, but cancels erasing if any of files presents on disk:
C:DOSMASTERPC.TXT
C:WINDOWSMASTERPC.TXT
C:WINDOWSSYSTEMMASTERPC.TXT
While deleting the virus displays the messages:
SEARCHING TEMPORARY FILE TYPE all
PROBABLE TEMPORARY FILE FOUND
Delete this file
DELETING FILE...
Files Deleted. Keep your Hard Drive cleaned !