f you carefully encode a web shell in an image you can bypass
server-side filters and seemingly make shells materialize out of
nowhere (and I’m not talking about encoding data in comments or
metadata) – this post will show you how it’s possible to write PHP
shells into PNG IDAT chunks using only GD.
http://www.idontplaydarts.com/2012/06/encoding-web-shells-in-png-idat-chunks/
Jumat, 22 Juni 2012
Encoding Web Shells in PNG IDAT chunks
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