ZAccess 1

Introduction

ZAccess 1 is a computer virus written for the Commodore Amiga. It is a bootvirus and clone of The 16Bit Crew.
For further information please go to The 16Bit Crew.

Summary

• Overwriting the original bootblock unprotected disk while booting
• It is not crypted
• Hooks DoIO()-vector from the exec.library
• Makes itself reset resident by using the CoolCapture

Details

Compared to its original only the visible text in the bootblock have been changed, everything else is the same:

01d0h: 00 00 00 82 FF 7E 5A 41 43 43 45 53 53 20 56 31 ; ...‚ÿ~ZACCESS V1
01e0h: 2E 30 20 2F 20 31 39 39 31 00 00 00 00 00 03 EC ; .0 / 1991......ì

Clones and variants

None