Virus Database

Galeocerdo.600

Description Galeocerdo.600

This is a relatively harmless non-memory resident parasitic virus. It searches for COM-files and writes itself to their end. It searches and infects the files that are of internal COM-format, but with a .EXE file name extension, these files are infected in the same way as .COM-files. It adds 100 to the year value of the system date. On Thursdays, it corrupts the system BIOS data. It contains the following internal text string:
Victim of Galeocerdo cuvieri

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BrokenHeart.445

Description BrokenHeart.445

It's a dangerous memory resident companion virus. It hooks INT 21h and on execution of .EXE-files it creates companion .COM-files. Depending on the system timer it deletes C:CONFIG.SYS file, overwrites C:AUTOEXEC.BAT file with the strings:
@ECHO OFF
C:SANDRINE.COM

then the virus creates C:SANDRINE.COM file and writes into it the program which overwrites MBR of hard drive by the string
Sandrine Baillieux thoughts of you are in my mind (c)1994 by BrokenHeart

This string is displayed also several times.

Brontozavr.1280

Description Brontozavr.1280

It is a dangerous memory resident parasitic virus. It hooks INT 10h, 21h and writes itself to the end of files that are executed. The virus contains lot of bugs, and it is necessary to arrange a special environment to force the virus to infect a file. The virus infects the files as COM (it writes itself to the end of the file, and overwrites first three bytes of the file with CALL Virus instruction), but it infects only the files that have not "COM" file name extension. There also are mistypings in virus assembler code, and as a result the virus rather corrupts the files that infects them.
The virus contains the text strings:
AIDSTEST.EXE
Virus BRONTOZAVR ,04.04.94 ,by CRAZY
COMMAND.COM

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