Virus Database

Ghost_2.5000

Description Ghost_2.5000

This is a very dangerous memory resident encrypted parasitic stealth-virus. It hooks INT 21h and 25h, and writes itself to the beginning of COM- and EXE-files that are executed, opened or closed. If the resulting COM-file length is out of segment (64K), the virus converts the file to EXE format.
While installing its TSR copy, if there is no free system memory, the virus displays the following message, and exits to DOS:
Swap file creation error at 0FAD:2DEC.
Program aborted.

The virus contains code that overwrites .PAS- and .CPP-files with the following text:
There is nothing in the world that I ever wanted more than to never feel
breaking apart all my programs again. The spiderman is always hungry

but this code is never executed.
In January, the virus corrupts the data on the hard drive, and then displays the following message (there may be any random digit instead of "000000000"), and "drops snow" on the screen:
Happy New Year !
Ghost 1.0 is terminating its work now. Please waitall
Write down this number : 0000000000 and pray for your data rescue.

The virus also contains the internal text strings:
COMMAND.COM
.COM.EXE.PAS.CPP
I feel so tired.
The way the rain comes down how it`s how I feel inside.
I`ve been living so long with my pictures of you
Remembering you standing quiet in the rain

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Pcflu.2141

Description Pcflu.2141

This is a not dangerous memory resident parasitic polymorphic virus. It hooks INT 21h, 27h and writes itself to the end of EXE files and to the beginnings of COM files, some "Pcflu" infects only EXE files. While executing it checks the system and sometimes displays the message:
Incorrect DOS version
Then it returns to DOS.
The virus contains the text string:
PC-FLU Mk II by Wizard 1991
Some of the viruses from this family hooks INT 8 (timer) and 9 (keyboard) sometimes. Then they periodically 'skip' the keys that are entered.

Pcflu.2156

Description Pcflu.2156

This is a not dangerous memory resident parasitic polymorphic virus. It hooks INT 21h, 27h and writes itself to the end of EXE files and to the beginnings of COM files, some "Pcflu" infects only EXE files. While executing it checks the system and sometimes displays the message:
Incorrect DOS version
Then it returns to DOS.
The virus contains the text string:
PC-FLU Mk II by Wizard 1991
Some of the viruses from this family hooks INT 8 (timer) and 9 (keyboard) sometimes. Then they periodically 'skip' the keys that are entered.

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