Details
DrJohn.2000

It is not a dangerous memory resident parasitic virus. It writes itself to the end of COM and EXE files. When an infected file is executed, the virus infects the C:\COMMAND.COM file, then hooks INT 13h, 21h and infects the files that are opened. Depending on the system date (one month after infecting) the virus displays the message in Russian. The virus also contains the text strings:
c:\command.com
*Doctor John*!

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This entry was posted on Friday, September 29th, 2006 at 4:00 pm and is filed under Virus Threats.