File Investigator and File Finder

Ever wish there was a better way to find files than the built in Windows search? Well, I have, not to mention, doing computer forensics it is often nice to have a piece of software to identify a file type or double check another piece of software.

Doing data recovery, you have a client that is often only interesting and in finding and recovering their 50 page Word document they were working on when their computer crashed.

Well, for the situation File Investigator (http://www.robware.com/fifilefind.htm) by RobWare is a great tool. They are nice folks and very responsive.

This program identifies files by their content rather than just the extension at the end. The software also returns also returns a lot of additional file information. In also runs very fast.

If you do data recovery, computer forensics, or are just a power user that does a lot of searching; I recommend this software.Here is some more information about the program, straight from their site:

The File Investigator Engine is the core program that identifies a file by its content rather than filename extension. You might assume that it has to be slow if it opens every file, but it is almost as fast as any other program that just reads the disk directory. MS Windows and most applications only look at a file’s extension when identifying or loading it. If the file has the wrong extension or the application doesn’t recognize the extension, then you are out of luck. Unless you have an application that uses the File Investigator Engine.

Stages that we use to identify each file:

1. Match Legal Database(s) Hash Codes (optional)
2. Match File Header/Magic #
3. Match Inter-File Pattern/Signature/Magic #
4. Match Byte Value Distribution Pattern
5. Interpret & Validate Identification
6. Match Hash Codes (Our hash DB, then the Legal DB(s))
7. Floating Header Match (Secondary)
8. Match Hash Codes (Secondary, Legal DB(s) only)
9. Match File Extension
10. Read Metadata

This engine also extracts valuable information out of many different types of files. Information like: image resolutions, sound file sampling rates, document titles, and much more. It then adds general information about that particular file type/format.

We provide Software Development Kits for Windows, UNIX & Linux programmers to take advantage of the File Investigator Engine. There are also a couple of consumer applications available.

There are many uses for this type of software.

* Identify a file that a friend or colleague gave you that Windows doesn’t recognize.
* Quickly look at a file’s details when searching for a specific file, without having to wait for an edit program to open and load each file.
* List the details for many files all on one screen. Then it is easy to zero in on a file that you were looking for.
* Organize your files by their qualities or types rather than just their file names.
* Scan files for viruses intelligently, by first identifying what type of file(s) you are scanning.
* Search confiscated hard drive(s) for Computer Forensics legal evidence.
* Verify that the file your software product is about to load is in a supported format.

PureText

Have you ever wanted to copy a word document or a webpage to save the information for later use or integrate it somewhere else?  If you have, you have probably been frustrated at grabbing all the pictures and links when you tried.

Well, Steve Miller has a great little program to help out with this problem.  It is called PureText It is a small .exe program that basically strips most pictures and formatting out before executing the paste command.  Great time saver.  As a matter I used it to grab his description of what the software does to paste it into the bottom of this article.

This can be of use in computer forensics investigations.  There may be times when you want to convey the text content of a page to your end-user without giving them the pictures on the page (sometimes they could even be illegal to transmit, i.e. child porn).  This is a great little tool for that.

Passwords, What should I do?

We all have a ton on passwords to remember now. Most of us have heard that it is not a good idea to use the same password on everything. Although, you may not have been told why…

In brief, I will explain it. Passwords are transmitted through the internet in two basic forms, plain or encrypted. Most financial sites use what is called SSL (secure socket layer) encryption. This keeps your information pretty safe enroute from point to point. A lot of you social sites, forums, clubs, or small member sites even transmit the password in plain text.

Plain text password transmission allows anyone to get your password as it passes through. Without getting complicated, most all information on the internet travels through a bunch of different computers (called servers) before it reaches its destination. An unsavory administrator, or a hacker that has breached their system, can grab the password as it passes through with a “sniffer.” A sniffer is basically a program that monitors internet traffic.

How do I know which is being used, plain text password or SSL encryption? Just look at the edges of your browser. On all the browsers I am aware of, a padlock appears somewhere. It is usually in the lower right on FireFox and to the right of the address bar on Internet Explorer. If you see the padlock, you password is going through SSL encryption.

Of course, SSL encryption means the password is safe enroute. Whether you can trust the site administrators on the other end, and whether they keep there servers secure from hackers is a whole different story.

So, what should a person do? At the very least, you should use different password for your financial sites and for your “play” sorta sites where the passwords go through in plain text. For the best security, a different password should be used on every site. I know, you are going there is now way I can remember all those passwords!

Well, I have a FREE solution for you. www.passwordmaker.org. This program is great. You input your master password and the site name you are logging into. The software uses an encryption scheme to then produce a secure password! You remember one password, yet you get an individual password for every site.

Now you ask, but what is I am at a friends house who doesn’t use the software or an internet cafe? Well, they have an “online” password generator that you use to put in the same information as your application at home, and presto there is the same password.

I admit the away from the home option is a bit of a pain…. so, for the sites you would often access away from home (email, myspace, instant messaging, whatever) I would just have a password(s) you remember for them. Let password maker handle your financial sites, or any other sites that involve money or information you really need to keep private. The reason I say this is simple, if you think about the skilled hacker criminal out there… does he care what you said to your friend Sally about Bob?? NO. He is wanting to make money. The quickest way to do that is penetrate your online banking or PayPal account that has money.

So, take my advice, use passwordmaker where you need secure passwords; and sleep/ surf a little easier.

Gainesville, a little about it

Gainesville, FL.  When most people hear that, the first thing that comes to mind is the University of Florida.  That pairing with Gainesville, FL is not far off.  I have lived here for 15 years.  That is still my first thought.

 Gainesville is certainly dominated by the University of Florida.  This is not just because there are some 50,000 students and employees that make up the population.  It goes deeper than that.  One of the primary reasons for this, many of Gainesville’s (and Alachua County’s) permanent non-students; used to be UF students.

 I am in fact part of this crowd.  I came to Gainesville to attend the University of Florida.  I studied engineering there for 5 years.  I then went to the police academy.  Why the change you ask?  Well, that is probably a story for a whole different post.

 I came to Gainesville, attended UF, and meet my wife here.  We were from different home towns, with neither of us being particularly motivated to return to them.  So, we just stayed here.  Then we bought a home, had kids, built a fish pond, adopted dogs….. well, you get the idea.  Now this is home. 

 I suspect if you asked, many of the permanent Gainesville residents would tell you a similar story.

Not to mention, Gainesville is computer friendly…and I love computers.

Till next time….

Boot Utility to Delete Hard Disk Drives

I recently learned of a great SourceForge project.  Most of us know, it is dangerous to throw out or donate that old computer without “deleting” that old data off the hard drive.   If you just use an ordinary delete command, you are not actually removing the file.  The file index system is just marking that file space a available for use. 

Now days, there are  data recovery options that are available to anyone with a moderate level of computer skills.  It is not just cops and data recovery companies that can get at your private data.   There are plenty of criminals and unscrupulous individuals that have learned how to make use of your data.

 Thankfully, there is now a project on SourceForge that can help.  DBAN   DBAN is short for Darik’s Boot and Nuke.  This software will allow you to create a boot disk that can be used to wipe your entire hard drive.

 I have not personally verified the effectiveness of the software, but it looks like a really good product.  Especially considering the price, FREE.

Be aware that this will not stop the National Security Agency from recovering the data, but it will stop your common criminal and neighborhood computer geek.

 By the way… don’t throw away that old computer.  There are many non-profits that fix up old computers and give them to families that need them.  Make use of this free tool to clean the computer, and give it to people that will be grateful to have it.