Virus Database

Bleah.a

Description Bleah.a

This is a harmless memory resident boot virus. It infects the MBR of the hard drive and boot sector of floppy disks. While loading from infected disk it decreases the size of system memory (the word at address 0000:0413), copies itself to there, hooks INT 8 (timer), waits for DOS loading process, then restores the size of system memory and hooks INT 13h to infect the disks. As a result, the virus places itself to the block of system memory that is cut, but it does not change the total size of conventional memory.

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LunchTime.2050

Description LunchTime.2050

It is not a dangerous memory resident parasitic virus. It hooks INT 21h and when any program is executed, the virus searches for EXE files on the C: drive and writes itself to the end of the file. The virus does not infect files with the name MKS* (Polish anti-virus).
The virus deletes the anti-virus data files: CHKLIST.MS, CHKLIST.CPS. Starting from 12:00 till 14:00 the virus displays the message:
+--------------------------------------------------------+
| Po co tak ciezko pracujesz ? |
| Zrób sobie przerwe i idz na lunch. |
| Twój dysk twardy zostal zakodowany do godziny 14:00. |
| O tej godzinie zostanie odkodowany. Jesli wylaczysz |
| komputer wczesniej, stracisz na nim dane bezpowrotnie. |
| |
| Czas do konca przerwy : 1:59:00 |
| |
| NIE WYLACZAJ ANI NIE RESETUJ KOMPUTERA !!! |
+--------------------------------------------------------+

The virus also contains the text strings:
Jakze tu wszedles,powiedz i dlaczego?
Nielatwo wspiac sie na ten mur wysoki.
I smierc tu znajdziesz,zwazywszy, kim
jestes, Jesli cie spotka którys z moich krewnych.
Lunchtime Kraków -styczen 97

LungHua.2589

Description LungHua.2589

It is not a dangerous memory resident multipartite virus. It hooks INT 13h, 21h and writes itself to the MBR of the hard drive, to boot sector of floppy disks and to the end of EXE files that are accessed. Depending on the system timer the virus displays the message:
hello! This is <Lung-Hua 1.0> virus.
Don't worry, It's just a virus, It never damages your computer,
It's written by a Lung-Hua's student.
This is a test, I just want to know how far as virus can reach
and how fast as virus can sprend.
Specilly thanks to Dark Slayer (we are close friends), He teaches
me so many virus skills, This is my first virus, It's a quite
simple virus.
At last, I want to say "Hay! Teachers, Don't down a lof of
students, If you down them, They will very sad and cry, soall Don't
make their heart break."
PS.1. I recommand the assembly language's teachers, I hope you can
teach students "How to write viruses".
2. please send your comment to network (CC2 server, set file name
to comment.xxx, If you are supervisor, please set it to read
only and keep it many days, I'll receive it on the server)
3. keep my name "Blue Rose" in your mind, watch out my next virus,
I'll be back, Enjoy my first virus now, Have fun! :)
Blue Rose of TPVO (a sweet little girl) - 1995.06.18

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