You have an "x" deliminated (did I just make that word up?) string ($d) of the
output of
chr() - 1
on every character of your original code. And
on that topic your original code is:
{@a=("A(Whfg)","A(nabgure)","A(crey)","A(unpxre)");for (@a){s/\(/\"/g;s/\)/ \"/g;tr/A-Ma-m]N-Zn-z]/N-Zn-z]A-Ma-m]/;s/N/print/;$_.=";";eval($_);}}
You take every element of @a and first turn the { into " and the } into a space
and a " so:
A(Whfg)
becomes ( s/\(/\"/g )
A"Whfg)
becomes ( s/\)/ \"/g )
A"Whfg "
then you use tr/A-Ma-m]N-Zn-z]/N-Zn-z]A-Ma-m]/ to turn
A"Whfg "
into
N"Just "
this works because it replaces a character, for example W, with its complement
(kinda broke explanation :) i.e. W is the 10th character in N-Z, and J is the
10th character in A-M, so J replaces W. It is case insensitive because you
say both A-M and a-m, etc. Then
N"Just "
becomes ( s/N/print/ )
print"Just "
then ; is added to the end of the string by $_.=";"; and the string is evaluated!
for my first explanation of a obfuscation, not that bad :)
-
Are you posting in the right place? Check out Where do I post X? to know for sure.
-
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big>
<blockquote> <br /> <dd>
<dl> <dt> <em> <font>
<h1> <h2> <h3> <h4>
<h5> <h6> <hr /> <i>
<li> <nbsp> <ol> <p>
<small> <strike> <strong>
<sub> <sup> <table>
<td> <th> <tr> <tt>
<u> <ul>
-
Snippets of code should be wrapped in
<code> tags not
<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).
-
Want more info? How to link
or How to display code and escape characters
are good places to start.
|
