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Robin Hood's
how to search
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Lessons





Fravia's Nofrill
Web design
(1998)
 

Updated
28 January 1998

A letter by Robin Hood
(which is interesting per se, exspecially if you don't know what line bombs are)

My own public answer to Robin Hood
(since he used an anonym remailer)

Robin Hood's lessons:

ZERO, an overview
ONE, search engine attacks
TWO, special engine attacks
 

Hello Fravia,



I've been working on a present for you, yes, more lessons for

your pages of reverse engineering. Though they are not about

cracking applications, they involve some "cracking" of sorts.

I appreciate all the work you have put into your site both in

the things you have written and the administration of the

+HCU essays. With no disrespect meant to you, I found a

section of your site that could use a little improvement,

namely the "searching" pages, so I've picked up the gauntlet

to "work well" and have started building a set of "Hunting

Lessons" for your site.



Everyone has his skills, talents and strong set. Considering

your vast reverse engineering skills, your time seems better

spent with real cracking issues rather than searching. I'm

not a cracker of code, well at least not yet, but I can hunt

the net fairly well.



I've kept the pages in line with ideas; small, fast loading

with a few tiny gifs for spice. I don't have the HTML skill

to do them all in edit.com but I'm not using a WYSIWYG

program either. I chose WebEdit Pro (a glorified text editor

with a viewer and HTML reference) so I could actually lean

all the various tags.



There is an irony to contend with here; I see no reason to

waste time writing the lessons unless they are something you

actually want but you'll have no idea if you want them until

you see them. To resolve this I've sent along the rough

drafts of the first three pages. They are unfinished but

should give you an idea of my work and the out line will

show you where things are headed...



...Cheers,



  ->>>--Robin-Hood---->
And the following part is also EXTREMELY INTERESTING for all those among you that never learned the 'repairing' techniques needed in order to reconstruct maimed base64 files:

Lastly the narrow character format is necessary to sucessfully

pass files through the "Cracker" remailers. You will have to

open the message as text and edit the bombs that the remailer

has installed. There are five "Content-" lines repace the

string "=3D3D" and with "=3D" (without the the quotes).



Since the remailer will alter the exaples above, I'll put 

them in text; search for "equals three capital-D" and replace 

with just the "equals" character, no spaces or quotes. There 

should be two equal signs at the end of the "Content-MD5" line.



Also search for line bombs, they are really simple to find

and repair. Search for "=3D" (the "equal" char) in the main

body of the encoded message. If you find one it will be

followed by two numbers which represent the hex value for

the character that belongs in that position. Replace the

equal sign and the numbers with the corresponding letter and

look for a second equal sign after (at the end of the line)

and delete it. The remailer tends to go after "F" Hex46 for

some reason so you'll probably find an "equals"46 at the

start of a few lines. Replace them with F and delete the

second equals sign at the end of the line. We're not supposed

to be able to pass any files through this remailer, that's the 

purpose of all this maiming, but every thing is crackable even 

the "Georgia Cracker."
Here you have some examples:

Content-MD5: uC1pqPUTQ9F00UpHDb1UWA=3D=3D



BilKDH4aBo10ruN0QuxTyhUF183Ck5wnpbhhKQNHAHKh9/RFnm3o+kn31dGGw74yL++XJeS1

=46LyZn5/7itGX6rzAqv8waXpD7t9Ztr7nYCUJmRzBJ7GPplVKwb3lS+uUFrc8frd87R3WPJF=

0

ul67VG+QchErzAl1bMgfyKRL8gbiYHMx7IqrY74sHRKoUIV9aqLLUJmq+BusTIp6zSpdOBBh

0PHATcUpX18nUPPBzS8CXjmlggI90FGH4eSJ0ZDHoCOVWgnSFy6vSXh2dpDvrCc8CVbm053N
Note the =46 at the beginning of the line. You just substitute "F" to it and eliminate the = sign at the end of the line, obtaining:

BilKDH4aBo10ruN0QuxTyhUF183Ck5wnpbhhKQNHAHKh9/RFnm3o+kn31dGGw74yL++XJeS1

FLyZn5/7itGX6rzAqv8waXpD7t9Ztr7nYCUJmRzBJ7GPplVKwb3lS+uUFrc8frd87R3WPJF0

ul67VG+QchErzAl1bMgfyKRL8gbiYHMx7IqrY74sHRKoUIV9aqLLUJmq+BusTIp6zSpdOBBh

0PHATcUpX18nUPPBzS8CXjmlggI90FGH4eSJ0ZDHoCOVWgnSFy6vSXh2dpDvrCc8CVbm053N
Remailers seem to maim files choosing a letter randomly, every time the encoded file has a line starting with that letter, it will be maimed.
Dear Robin Hood, it seems that at least some sections of my site begin to bear those fruits +ORC spoke about long ago. After the Student section, which has blossomed beyond any possible forecast, there are now a whole series of sections slowly 'taking off', or at least so I hope enduring the frozen rains of this still cold winter. Some contributions are just little snippets of knowledge, others, like yours, are more structured and promising.


You write that my time "seems better spent with real cracking issues rather than searching", and I would happily agree IF there were somebody else teaching searching matters, which is not the case, at least not until now. The simple truth is that all these activities are REALLY interrelated: cracking, searching, reversing, hacking and, in my opinion, understanding the real face of the reality as well. That's the reason I'm seriously keen, now, in developing and pushing also my 'reality cracking' section (I hope with even more help from +ORC and others): I believe that our ultimate goal must be to grow, out of a masse of gullible beginners, not only 'simple' crackers, but clever, 'ethycally' good and mighty powerful reversing wizards. We'll need their unvaluable help if we ever hope to reverse this world... reverse! Not only in order to understand its awful realities, taking profit of this, through our knowledges, for ourselves, which is a very easy thing to do, but also in order to change it, which is incredibly difficult, given the power available to those that DO NOT WANT any changement. "Crackers haben bis jetzt das Welt nur verschieden Interpretiert, es kommt aber darauf an es zu ver”ndern".

I hope you'll "work well", as I assume +ORC must have written to you, and that you'll send your complete lessons.

Two comments, about form and about content:
1) FORM
I respected your colors choices, yet, as a suggestion, I would advice you to choose black fonts on gray backgrounds for reading and printing 'obvious) reasons. Some Sherwood green can be kept using the simple table tricks I have used at the top of this very page.
2) CONTENT
A caveat: The Minnesota teacher
Searching is indeed difficult and my friend Robin Hood has been, in this case, trapped inside a false path.
The Minnesota teacher in Robin's lesson ONE is a very real chap (altough I agree that such a biography could be useful to set up a fake page). He only happen to have got the same SLOT in Geocities where a page of mine has been hosted for almost one year (until Geocities censored it, that is :-(
At the beginning the poor chap has been buried by hundred of emails from people seeking my page, and he was so kind to have a link to my new sites, link that he has now, apparently, taken away. These are the vagaries of Geocities and all other free pages providers: you never know if the slot you find was a famous craker location before (or worse :-)
Robin, you could have avoided this mistake performing a SEARCH on my pages for that URL (since you were searching for fravia)... and you would in that case have found exactly the same alta vista trick that you explain, with that very example you use, on my own searengi.htm page (I have always been too lazy to change it). So even expert searchers can be fooled, as it seems :-)
Yet this does not diminish the importance of the lesson by Robin, in fact the 'mapping/brute boting' trick is one of the methods I use myself to dump complete maps of the smut sites I want to destroy :-)
And since my knowledges in this field are far from good, I'm eagerly awaiting Robin's lessons on this matter!

Two more answers:
- The anonymizer 'real' trick is well know by those who need to know it and it is indeed NOT a good idea to go public with it. So don't speak about it in your next lessons.
- Yes it's a decoy; yes you have been fooled (at least I hope); No, I have nothing to do with MJ13 and my handle (at least in this phase) is fravia+ or fravia or Fravia
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