Backdoor.Dest
Description Backdoor.Dest
This program executes a DoS attack on a remote computer by using a third computer ("mediator"). The program is sent to the mediator computer and installs itself in there. Then it waits for host connection and on command, attacks a victim's computer that is directed by the host. To attach, the Trojan sends a bomb packet to the computer (the bomb is an IP packet 60K in length) that causes the victim's machine to crash in the case that the computer is run under Win9x/NT without the latest ServicePacks.
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AntiEXE.a
Description AntiEXE.a
These are very dangerous, memory-resident boot viruses. They hook INT 13h, and infect the MBR of the hard drive and the boot sectors of the floppy disks. They check the accessed sectors for an EXE header (MZ/ZM stamp), and corrupt some EXE files that are executed or while reading/writing from/to these files.
AntiFort.1110
Description AntiFort.1110
This is a very dangerous memory resident encrypted parasitic virus. It hooks INT 21h and writes itself to the end of COM and EXE files that are executed. While executing a file with the name F77*.*, the virus deletes that file. On Mondays, the virus writes the following string to the end of the C:AUTOEXEC.BAT file:
@ECHO Y | FORMAT D:
On Tuesdays, the virus modifies the Interrupt Timer by writing to the timer ports. The virus also contains the internal text strings:
ANTI FORTRAN OF OVER-X
C:AUTOEXEC.BAT
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