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Details
Constructor.VCL
The virus constructor utility VCL.EXE (Virus Creation Laboratory) seems to be the most well-known virus creation tool. This constructor can generate source assembler files of the viruses, OBJ modules and infected master files. VCL contains the standard pop-up menu interface. By using VCL menus, it is possible to choose the virus type, enable or disable self encryption, anti-debugging code, and internal text strings. It also is possible to choose up to 10 effects, which are summoned upon virus execution, etc. VCL-based viruses can use a standard means for infection (they append their code to the files while infecting them), they can overwrite the files or use companion technology.
The main properties of VCL-viruses are:
they are non-memory resident;
they scan the subdirectory three or the current directory of the current drive while infecting files;
they append to COM files, or create new COM files or overwrite COM and EXE files. |
