ASBV
Description ASBV
It is a very dangerous memory resident stealth boot virus. It hooks INT 9, 13h and writes itself to the MBR of the hard drive and the boot sector of the floppy disks. Depending on its counter that virus erases the sectors of the floppy disks. The virus intercepts warm reboot (Alt-Ctrl-Del) and tries to stay memory resident ever while loading from not infected disk. The virus contains the text strings:
I'm ASBV
No System!
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NoHook.48
Description NoHook.48
These are very dangerous memory resident overwriting viruses. They copy themselves to the Interrupt Vectors Table, hook INT 85h and patch DOS kernel with INT 85h call. Then they overwrite files that are executed. Major versions of these viruses contain the text:
it's not necessary 2 hook int 21h!
Noiembrie.610
Description Noiembrie.610
This is a relatively harmless, non-memory resident encrypted parasitic virus. It searches for .COM files, then writes itself to the end of the file. It displays the following messages and returns to DOS:
On November 9th: 9 Noiembrie 1979 - Ziua Lui Cosmin
NoNov - HCA Romania September 1996
On Sundays: Sunday error 262 at 7053:0122
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