Tool Testing

This post was originally published on this site

Phill recently posted regarding some testing that he’d conducted, with respect to tools for parsing Windows Recycle Bin files. From Phill’s blog post, and follow-on exchanges via Twitter, it seems that Phill tested the following tools (I’m assuming these are the versions tested):

– rifiuti2
– Jason Hale’s $I Parse – blog posts here and here
– Dan Mare’s RECYCLED_I app – the main software page states “RECYCLED_I: Program to parse the $I files extracted via a forensic software package. Special request.”, but you can download it (and get syntax/usage) from here.
– My own recbin.pl/.exe

Phill’s testing resulted in Eric Zimmerman creating RBCmd (tweet thread).

What I was able to determine after the fact is that the “needs” of a parsing tool were:

– parse Recycle Bin files from XP/2003 systems (INFO2), as well as Win7 & Win10 ($I*)
– for Win7/10, be able to parse all $I* files in a folder.

The results from the testing were (summarized):

– Some tools didn’t do everything; some don’t parse both XP- and Win7-style Recycle Bin files, and the initial versions of the tool I wrote parsed but did not display file sizes (it does now)
– The tool I wrote can optionally display tabular, CSV, and TLN output
– Eric’s RBCmd parses all file types, including directories of $I* files; from the tweet thread, it appears that RBCmd displays tabular and CSV output
– rifiuit2 was the fastest

So, if you’re looking to parse Recycle Bin index files (either INFO2 or $I* format)…there you go. 

$I* File Structures
As Jason Hale pointed out over 2 1/2 years ago, the $I* file structure changed between Win7 and Win10.  Most of the values are in the same location (the version number…the first four bytes…were updated from 1 to 2), but where Win7 had a fixed length field that included the name and original path (in Unicode) of the file, Win10 and Win2016 have a four byte name length field, followed by the file path and name, in Unicode.

Resources
SemanticScholar PDF
4n6Explorer article

November 24, 2018