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The heuristic analysis refers to a method designed to detect unknown viruses along with potential new variants of the malware that already exists on the market. While the method is employed by the some mainstream antivirus solutions, one of the major concerns with it is the considerable amount of false positives.

RHBVS is a command line tool dedicated for scanning DOS files and targets hybrid malware using the heuristic scan technology. Relying on an intelligent code analyzer, the application is capable of detecting modules for batch viruses from various categories, including scripting viruses, JavaScript, Windows Shell Scrap, IRC worms and many more. It is worth mentioning that this is among the few programs aimed at detecting IRC, HTML and VBS worms with heuristic, according to the developer.

On a side note, the reason why the program may seem to be lacking in flexibility is because it was designed to work complementary with VirScan Plus. During your scans, you may encounter some issues with checking boot sectors, the Windows system memory or the MBR.

Nevertheless, there are no limits regarding the number of drives and directories that you can scan during a single run. Following the analysis, you can take the time to browse through the detailed description of all the flags that the engine found.