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I think most of you have noticed the current traveling email worm called homepage.HTML.vbs. As a user of a linux-machine I found it very funny to see how often the message popped into my mailbox. On the other hand I was interested in what the source would look like, and found that it does some replacements to a quite long string. So I tried to decode it in perl, and came up with the following solution:

for (my $i = 0; $i < length($foo); $i++) { my $bar = substr($foo, $i, 1); if (ord($bar) == 15) { $bar = chr(10); } elsif (ord($bar) == 16) { $bar = chr(13); } elsif (ord($bar) == 17) { $bar = chr(32); } elsif (ord($bar) == 18) { $bar = chr(9); } else { $bar = chr(ord($bar)-2); } substr($foo, $i, 1) = $bar; } print $foo."\n";
I thought of using tr for that, but it seems to be quite tough to set up that lines.... So, any improvement are welcome - not for helping decoding (that was finished ;) but for improving personal abilities.

Like always, thanks in advance.
use signature; signature(" So long\nAlfie");

In reply to homepage.vbs decode by alfie

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • 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).
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