Kuku.448
Description Kuku.448
It is a very dangerous nonmemory resident parasitic virus. It searches for .COM files, then writes itself to the beginning of the file. Depending on the system time (with the probability of 1/8) the virus overwrites the files with the program, being executed that program disables keyboard, decrypts and displays plenty of colorful lines "Kuku!".
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Olga.483
Description Olga.483
It is a dangerous memory resident multipartite virus. It writes itself to the MBR of the hard drive and into the header of EXE files, if there is free space. When an infected file is executed, the virus infects the MBR and returns to the host program. While loading from infected MBR the virus hooks INT 13h and then infects EXE headers that are accessed. On December 27 the virus erases the disk sectors. The virus contains the text string:
SGB:Olga++
Olgi.480
Description Olgi.480
It is a harmless memory resident parasitic virus. It hooks INT 21h and writes itself to the end of EXE files that are executed. The virus does not manifest itself in any way.
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