CD_Joke.848
Description CD_Joke.848
It is not a dangerous memory resident parasitic virus. It is encrypted in files as well as in the system memory. It hooks INT 21h and writes itself to the beginning of COM files (except COMMAND.COM) that are executed. To detect its TSR copy the virus calls INT 21h with EAX='PiVO' and compares the returned EAX with 'OUi!'.
If there is a CD drive installed, the virus also hooks INT 16h and depending on its keystrokes counter ejects or closes CD drive.
The virus contains the text string:
CD Joke II by NemO.
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AllFools.659
Description AllFools.659
It is not a dangerous nonmemory resident parasitic virus. It searches for .COM-files, then writes itself to the end of the file. On April 1st the virus displays the message:
Hey, it's All Fools Day! -- Press a key
The virus also contains the internal text string:
PV
*.COM
Alpha.2000
Description Alpha.2000
It's a not dangerous memory resident parasitic stealth virus. It hooks INT 21h and writes itself at the end of COM-, EXE- and SYS-files that are accessed. On execution or opening of infected file the virus disinfects it. Sometimes it displays the message:
"ALPHA STRIKE" Advanced Tactical Viral Implant by NEUROBASHER'93 /
Germany
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