Amiga Virus Encyclopedia
QRDL v1.1 Link Virus
QRDL V1.1 Linkvirus:
This virus makes an infected file 2300 bytes longer. It creates an
own first hunk (like the "classic" viruses like CCCP, Smilie
The CoolCapture is set sometimes. The following pointers will be
- Exec: DoIO / NewOpenLibrary
- Intuition: OpenWindow (-$CA)
- $78 (Exec)
Called this way because of a little ASCII text in the virusfile.
Sometimes the bitmap of the just inserted disk will be filled with
$FFFFFF. This routine will only be started if an old filesystem
disk (DOS0) will be used. The result is that the OS thinks that
the disk is empty and if you write on the disk, all other files on
disk became cleared.
move.l #$00000370,d0 ; 880 = Rootblock
.loop move.l #$FFFFFFFF,(a0)+ ; fill with -1
move.w #$0002,$001C(a1) ; TD " WRITE "
sector: move.l #$00000200,$0024(a1)
It is possible that infected files will not work anymore because of
a bad hunk detection routine in the virus. I cannot rescue such
files at the moment.
The repair routine has only been tested on one file because I could
not spread the virus on my disks!
Detection and termination tested on 21.11.92
Test by Markus Schmall...