TrapDoor.338
Description TrapDoor.338
It is a very dangerous nonmemory resident encrypted parasitic virus. Being executed it searches for .COM files, then writes itself to the end of the file. Depending on the system timer it hooks INT 21h, stays memory resident and deletes the files that are executed. The virus contains the text string:
The Trap Door Virus*.com
Check other viruses! Be aware! Use Antiviral Software
Primus Family
Description Primus Family
These are dangerous memory resident parasitic viruses. They copy themselves to the Interrupt Vectors Table, hooks INT 21h and write themselves to the end of COM and EXE files that are accessed. The virus do not perform any harm actions, but while infecting a file they corrupt the BIOS data area at address 0000:0400, that may crash the system. The virus contain the text strings:
"Primus.512":
AcTiOnBoX vIrUs 3
PrImUs
(A)bort, (R)etry, (C)ry
"Primus.528":
Alien Nation Virus
PrImUs
Make My Day Monkey Boy!
PrintDevil.716
Description PrintDevil.716
It is not a dangerous memory resident encrypted parasitic virus. It hooks INT 21h and writes itself to the end of COM files that are executed. While installing memory resident the virus also infects the C:COMMAND.COM file. On October 31 the virus also hooks INT 17h (printer) and while printing changes each 102nd symbol. The virus contains the text string:
This is the Print Devil Virus!
|