Cerberus.1353
Description Cerberus.1353
Cerberus.1353 is a dangerous memory resident parasitic virus. On execution it copies its body into the memory area at the address 8000:0100 without correction of the MCB blocks. It can cause the computer to hang. Then it hooks INT 21h and INT 28h. On opening the files it sets the own internal flag, then on INT 28h call it checks that flag and if it is on, the virus searches the .COM-files and writes itself into their beginnings. After 80 infections it draws the moving dog's muzzle.
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Magda.512
Description Magda.512
Magda.512 is a dangerous memory resident parasitic virus. It copies itself into Interrupt Vectors Table, hooks INT 21h and writes itself at the end of EXE-files that are executed or opened. On May, 28th it deletes the files. Depending on the system time it displays the message:
I love Magda Trawinska!
Magdzie.1056
Description Magdzie.1056
This is a benign memory resident parasitic stealth virus. It hooks INT 21h and writes itself at the end of EXE-files that are closed. On execution or opening of infected file this virus disinfects it. This virus deletes CHKLIST.* files. On May, 27 it displays the message:
Magdzie T. - jutro Twoje urodziny!
Then it manifests itself by a video effect. It also contains the internal text strings:
PH
chklist?.*
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