LG.a
Description LG.a
It is a dangerous memory resident parasitic virus 1024 bytes of length. It hooks INT 21h and writes itself to the end of COM and EXE files that are executed or closed. The virus contains the text strings:
(c) Light General.
LG
While infecting a file the virus does not write its complete code to the end of the file, but 146 bytes only. The rest of virus code is written to the disk sectors by direct disk-write calls. When an infected file is executed, the virus reads its rest from disk sectors and continues installation. While installing it also looks for some specific code in the system memory and patches it.
While infecting the virus may corrupt disk sectors and disk boot sector. As a result data may be lost, or disk stays as non-bootable.
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MTZ.2624
Description MTZ.2624
This is a benign memory resident parasitic polymorphic and stealth virus. Being executed it checks DOS version and installs itself as memory resident under DOS 5.0 or above. If there is free block of upper memory, this virus copies itself into UMB. This virus infects files on FindFirst/FindNext DOS calls. On opening an infected file the virus disinfects it.
The virus hooks INT 21h and writes itself to the end of EXE files (except SCAN.EXE). Depending on the system timer it displays the message:
Overkill IV Virus - By MTZ - From Italy - <Hit any key to continue>
(Cazzo! Anche oggi un altro 2 di picche, ma si puo' andare avanti cosi' ?)
MTZ.971
Description MTZ.971
This is a benign non memory-resident parasitic encrypted virus. It searches for COM files and writes itself to the end of the file. It contains the text string:
MTZ Virus 1.0 - From Italy
Sometimes it displays:
You are lucky. Full moon tonight.!
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