Virus Database

TPVO.3345

Description TPVO.3345

This is a relatively harmless memory resident polymorphic and stealth parasitic virus. It hooks INT 21h, and writes itself to the end of COM and EXE files that are accessed. The infected files contain ID-text at the file end:
TPVO
The virus turns off its stealth routines if one of these utilities is executed:
SCANDISK
CHKDSK
PKZIP
LHARC
ARJ
RAR
LHA
UUC
UC
On the 30th of any month and on the 3rd of August, the virus displays the following message:
Declaration of establish of "Taiwan PowerVirus Organization"
==============================================================
We are member of TPVO, we apologize for interrupt your work,
we would like to let you know some important message, THE TPVO
HAD BEEN ESTABLISHED.
Due to illegal copy of software and false advertising, we
will make many perfect virus to spread in the world, for your
own benefit and support of "you paid for what you use" concept,
please support the legal copy of software program,please notice
false advertisement, for ex: Taiwan local anti-virus program
"ZLOCK", they claim "they can prevent any kind of future virus"
, we will take out their false mask under general public.
Please watch out any new information about our cool computer
virus.
[T.P.V.O]

Check other viruses! Be aware! Use Antiviral Software

Dragon.414

Description Dragon.414

It is a harmless memory resident parasitic virus. It copies itself into Interrupt Vectors Table, hooks INT 21h and writes itself to the end of COM files that are executed or accessed by the DOS call FindFirst ASCII. While infecting COMMAND.COM file the virus does not increases the file size. The virus contains the encrypted strings:
COMMAND.COM
Quick Dragon v.7

Dragon1

Description Dragon1

It is a very dangerous memory resident stealth boot virus. It hooks INT 13h and writes itself to the MBR of the hard drive and to the boot sector of floppy disks. The stealth procedure is buggy, and the virus may corrupt the files while reading/writing from/to infected floppy.
While infecting 12th disk the virus manifests itself by a video effect - it changes video palette. Under debugger it halts the computer.
The virus contains the text strings:
Dragon 1
(C) Snake's.
Death

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