VSP3.443
Description VSP3.443
It is a harmless memory resident parasitic virus. It copies itself into DOS data area at the address 0000:0534, hooks INT 21h and writes itself to the beginning of COM files that are executed. The virus contains the text:
VSP3
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Int_FF.1024
Description Int_FF.1024
It is a harmless memory resident parasitic virus. It hooks INT 21h and writes itself to the end of COM and EXE files that are executed. While installing the virus sets INT FFh vector to INT 21h original address and while infecting the virus uses INT FFh calls instead of INT 21h.
Int10 Family
Description Int10 Family
These are not dangerous memory resident boot viruses. They hook INT 10h, 13h and 1Ch. Int 10h is used for INT 13h interception, INT 1Ch - for trigger routine, INT 13h - for infection. They hit MBR of hard drive and boot-sectors of floppy-disks. The viruses encrypt original sector before saving it. Sometimes they call some video effect.
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