Detection of files that might be found in variable locations,typically the installer archives of malware, is sometimes optimized by combining their lookup, in which case they receive this generic name.

The Download directories setting can be used to put special attention for such files on folders you use for incoming files. Spybot-S&D 1.5 also adds a few guessed locations to this internally to reduce the risk of forgetting standard download folders.

It is unnecessary, even counterproductive, to add whole drives to this setting!