Virus Database

Kyokushinkai

Description Kyokushinkai

It's a dangerous memory resident multipartite virus. On execution it infects MBR and installs itself into the memory. It hooks INT 12h, 13h, 1Ch, 21h and on execution of any program it searches for EXE-files and writes itself at their ends. It is stealth virus on accessing to infected MBR. Depending on system time it overwrites the disk sectors with the string:
+++++++ Kÿöküshïñkäï +++++++.- 39-mynrazCmeroizóJdanogewogninertuzoboogeintelóktáimapaN-OLYKaúysezrpuzoboogeúacaldainezcyºenzcedreS
[Note: some characters not displayable in HTML]

Kysia.1536
It's the variant of "Kyokushinkai" virus. This one hits first Boot-sector of hard drive. Depending on system time it displays the message:
(c) 1993 Kysia Software Co.
Your fucking PC is infected !
I'm formating your hard disk now.
I'm lucky.
FUCK'AM ALL
Bezplatna reklama kapeli ZOD ze Szczecina.

Check other viruses! Be aware! Use Antiviral Software

Lamento.2690

Description Lamento.2690

It is a very dangerous memory resident encrypted parasitic virus. It hooks INT 21h and writes itself to the end of COM and EXE files that are accessed. While installing the virus also infects the C:COMMAND.COM and C:DOSMODE.COM files. The virus checks the file name, and does not infect the files that begin with any of the strings:
PCVIR CENTINEL SCAN CLEAN VSHIELD ATM TB CPAV MSAV TNT FINDVIR VC VREMOVE
VSMENU VSCHK MM. KEYB.

On January 21st the virus sets the system date to January, 20th, then deletes C:AUTOEXEC.BAT and C:CONFIG.SYS files, renames to the random names all the files in subdirectories of C: drive:
DOS MSDOS SYS DRDOS IBMDOS
WINDOWS WIN WIN3 WIN30 WIN31 WIN311

While processing Windows' directories the virus looks also for SYSTEM subdirectory. Then the virus displays the messages:
Lamento tener que comunicarle que hoy es 21 de Enero all
... ha sido una cortes¡a de Woi

Lamerman

Description Lamerman

It is a very dangerous memory resident multipartite virus. It infects the MBR of the hard drive and overwrites EXE files that are created or copied, i.e. the virus does not affect existing EXE files but newly created/modified files only.
When an infected file is executed the virus affects the MBR and halts the computer, while infecting the virus fools the BIOS virus protection by a simple keyboard trick. On rebooting the virus stays memory resident, hooks INT 13h and overwrites EXE files on writing to them.
The virus contains the text string:
Lamerman .01

Home