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- Zipper.2779
-
- ---------------------------------------------------------------------------
- It's a harmless memory resident parasitic virus. It is encrypted in
- COM-files. On installation it hits \COMMAND.COM and \DOS\FORMAT.COM files,
- then it hooks INT 21h and writes itself at the end of COM- and EXE-files
- that are accessed. It contains a bug, as the result in some cases infected
- files halt PC on execution. It contains the internal text strings:
-
- \COMMAND.COM \DOS\FORMAT.COM
- ZIPPER.ASM
- >>*>> Use PKUNZIP *.EXE immediately! <<*<<
-
- It contains the data block that is of ZIP format. After extracting of that
- block and renaming with ZIP extension, it stays as ZIP-file containing the
- ZIPPER.ASM file with source code of some virus.
-