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"HLL." (High-Level Language): Viruses written in high-level programming languages (such as C, C++, Pascal, Basic, etc.). In some cases the code of the compiled HLL viruses is packed with different compression utilities (PKLITE, LZEXE, DIET, etc.).
There are several classes of HLL-viruses:
These are the viruses which don't have any special characteristic (such as text strings, special effects, etc.) and therefore cannot be given any unique name.
Macro Viruses for MS Office.
These viruses use the features of file formats and built-in macro languages of MS Office applications (Word Basic for MS Word 6.0-7.0; VBA3 for MS Excel 5.0-7.0; VBA5 for MS Office'97; VBA6 for MS Office'2000).
These viruses are written in different script languages. As a rule, VBS-, JS- and WScript- viruses are worms that use email services to spread.
We also use such postfixes
Viruses wriiten for different operating systems and platforms