Virus Database

CLME.Ming.1952

Description CLME.Ming.1952

It is a dangerous memory resident parasitic virus. It hooks INT 21h and writes itself to the end of COM files that are accessed. Under a debugger it erases the disk sectors and halts the computer. It contains a bug and halts the system under some environments. It displays the message:
*Amoeba v1.00*
Written by Crazy Lord (Ming)
Made in Hong Kong

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Bolek.1326

Description Bolek.1326

It's a not dangerous memory resident parasitic virus. It writes itself at the end of EXE-files. On execution it searches for the EXE-files and hits them, then it hooks INT 21h and infects EXE-files that are executed. It hooks INT 1, 3, 9, 15h, 1Ch also, depending on several conditions it displays different characters. This virus also contains the internal text string "Bolek".

Bolero.1000

Description Bolero.1000

These are very dangerous memory resident encrypted parasitic viruses. They hook INT 21h and write themselves to the end of .COM files (except COMMAND.COM) that are executed, opened or accessed with FindFirst/Next DOS functions. The viruses have bugs, and may corrupt the files while infecting them, and infect data files.
The viruses also hook Write DOS function, and depending on the system timer corrupt the files that are saved on disk. The viruses overwrite them with the strings:
"Bolero.1000.a": RAVEL - BOLERO.
"Bolero.1000.b": HANDEL - Carmelite Vesperes.
"Bolero.1254": Divide Overflow
"Bolero.1300": divide overflow
"Bolero.1470": Divide Overflow

Being executed "Bolero.1300" also infects C:DOSFORMAT.COM. When any of the CHKDSK.EXE, SCANDISK.EXE, NDD.EXE programs are executing, this virus does not perform any action with the files.

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