Mosh 1.0 Bootblock virus:
(Caution: There are 2 viruses with the name Dr.Mosh in
circulation, this are different ones!!!)
Patched vectors: DOIO, KickTag, -$58(dos)
Doio is alway pointing at $7f964 and the Kicktag pointer is
also always pointing to $7fbde.
This virus works only under Kickstart 2.0 and higher, caused
This virus copies its code to $7f800 (without allocation) and
overwrites the original bootblock. Caused by a missing checking
routine for "trackdisk.." the virus is able to destroy to RDB
of your HD, too. After 5 infections the sector 880 will be
trashed (exactly this block). At normal DD disks, this is the
location for the rootblock. As a result your disk is not
useable anymore. Try to use DiskSalf etc. to recover your data.
In the same process the block $2800/$200 will be trashed.
A file, which is located in this block, is not repairable
Caution: Due to the missing memoryallocation, it can happen,
that the patched DOIO routine will be overwritten and the
Example: VirusWorkshop crashed on an A500+ based on this
The virus contains some texts at the end, which are crypted:
'HEY ! I`M MOSH version 1.0'
'FIRST SILESIAN VIRUS' <- other possible Name !?!
'Written by the best M.G.F'