Virus Database

LV.477

Description LV.477

This is a dangerous memory resident parasitic virus. It copies itself into the system memory at the address 99C2:xxxx, and does not fix MCB list, that might halt PC. Then the virus hooks INT 8, 21h and stays memory resident.
The virus infects only COMMAND.COM files when an infected files is executed, and from its TSR-copy when the files are opened. While infecting, the virus uses "Lehigh" method, and the length of the file does not grow.
Under infected system conditions the system speaker plays beeps (INT 10h, ax=0E07h).

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Macro.Word.TwoLines

Description Macro.Word.TwoLines

It is an encrypted macro virus. It contains five macros: MsRun, Autoexec, AutoClose, AutoOpen, FileSaveAs. The virus infects the global macros area on AutoClose and AutoOpen. Depending on the system time it sets the system timer event to the MsRun macro. Being executed this macro inserts two empty lines in current document.

Macro.Word.TZ

Description Macro.Word.TZ

This Word macro virus contains 5 macros: AutoClose, AutoExec, AutoNew, AutoOpen, TZ.
It infects the global macros area on opening an infected document (AutoOpen). Documents get infection on opening, closing and creation (AutoOpen, AutoClose, AutoNew).
The virus detects itself by empty macros TZ. The virus does not manifest itself in any way.

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