Dada.1356
Description Dada.1356
This is a non memory-resident harmless virus. It infects EXE-files by standard manner whenever they are loaded into the memory. At the end of infected files you can find the string in Russian: "yes,yesall" ("da,da..."). Periodically the screen flickers: all even lines are shifted cyclic to the left and all odd lines - to the right. The virus hooks INT 8, 21h.
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NoWin.2576
Description NoWin.2576
It is not a dangerous memory resident parasitic encrypted virus. It hooks INT 9, 21h and writes itself to the beginning of COM and to the end of EXE files that are executed or closed. When an infected file is opened, the virus disinfects it. While executing WIN.* file the virus reboots the computer. In some cases the virus beeps by PC speaker. The virus contains the text strings:
Copyright (c) 1993-94 XY, Zielona G¢ra.
R_H
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Nr.300
Description Nr.300
It is a dangerous memory resident parasitic virus. It hooks INT 21h and writes itself to the end of .COM files that are executed. The beginning of infected files contain the text strings "Nr". Sometimes this virus overwrites CMOS memory.
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