FIND A FILE TO INFECT
Ok now I will continue my last post on the replicator part. Before you can infect a file, you have to find it first! This can be a bottleneck in the performance of the virus, so it should be done as efficiently as possible. For runtime virii, there are a few possibilities. You could infect files in only the current directory, or you could write a directory traversal function to infect files in ALL directories (only a few files per run, of course), or you could infect files in only a few select directories. Why would you choose to only infect files in the current directory? It would appear to limit the efficacy of the infections. However, this is done in some virii either to speed up the virus or to shorten the code size. Here is a directory traversal function. It uses recursion, so it is rather slow, but it does the job. This was excerpted with some modifications from The Funky Bob Ross Virus [Beta]. traverse_fcn proc near push...