updated slides
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dev/bh/bh05.pdf
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dev/bh/bh05.pdf
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dev/bh/bh05.tex
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dev/bh/bh05.tex
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@ -8,7 +8,8 @@
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\usepackage[latin1]{inputenc}
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\usepackage{times}
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\usepackage[T1]{fontenc}
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% \usepackage{beamerthemeshadow}
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% I think this looks cool, but whateva! - skape
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%\usepackage{beamerthemeshadow}
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% Love from spoon
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\newcommand{\pdfpart}[1]{\label{pdfpart-#1}\pdfbookmark[0]{#1}{pdfpart-#1}\part{#1}}
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@ -21,17 +22,16 @@
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\subject{Beyond EIP}
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% Add a spacer between each part
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%\AtBeginPart{\frame{\partpage}}
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\AtBeginPart{\frame{\partpage}}
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% Turn off the navigation on the bottom yo
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\setbeamertemplate{navigation symbols}{}
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\usetheme[width=2.2cm]{Berkeley}
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\usecolortheme{sidebartab}
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% spoon hates berkeley!
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%\usetheme[width=2.2cm]{Berkeley}
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%\usecolortheme{sidebartab}
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% Kick this sucker open
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\begin{document}
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% Throw down the title
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\begin{frame}[t]
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\titlepage
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\end{frame}
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@ -41,59 +41,167 @@
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\section{Introduction}
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\begin{frame}[t]
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\frametitle{Who are we?}
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\begin{sitemize}
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\item spoonm
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\begin{sitemize}
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\item Full-time student at a Canadian university
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\item Metasploit developer since late 2003
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\end{sitemize}
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\item skape
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\begin{sitemize}
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\item Lead software developer by day
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\item Independent security researcher by night
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\item Joined the Metasploit project in 2004
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\end{sitemize}
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\end{sitemize}
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\end{frame}
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\begin{frame}[t]
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\frametitle{What will we discuss?}
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\begin{sitemize}
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\item Payload stagers
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\begin{sitemize}
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\item Windows Ordinal Stagers
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\item PassiveX
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\item Egghunt
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\end{sitemize}
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\pause
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\item Payload stages
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\begin{sitemize}
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\item Library Injection
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\item The Meterpreter
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\item DispatchNinja
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\end{sitemize}
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\pause
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\item Post-exploitation suites
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\begin{sitemize}
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\item Very hot area of research within Metasploit
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\item Suites built off advanced payloads
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\item Client-side APIs create uniform automation interfaces
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\item Primary focus of Metasploit 3.0
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\end{sitemize}
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\end{sitemize}
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\end{frame}
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\begin{frame}[t]
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\frametitle{The exploitation cycle}
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\frametitle{Background: the exploitation process}
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\begin{sitemize}
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\item \textbf{Pre-exploitation} - Before the attack
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\begin{sitemize}
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\item Find a bug and isolate it
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\item Write the exploit, payloads, and tools
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\end{sitemize}
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\pause
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\item \textbf{Exploitation} - Leveraging the vulnerability
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\begin{sitemize}
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\item Find a vulnerable target
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\item Gather information
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\item Initialize tools and post-exploitation handlers
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\item Launch the exploit
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\end{sitemize}
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\pause
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\item \textbf{Post-exploitation} - Manipulating the target
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\begin{sitemize}
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\item Command shell redirection
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\item Arbitrary command execution
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\item Pivoting
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\item Advanced payload interaction
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\end{sitemize}
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\end{sitemize}
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\end{frame}
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\section{Exploitation technology}
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\subsection{Pre-exploitation}
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\pdfpart{Exploitation Technology's State of Affairs}
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\section{Pre-exploitation}
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\begin{frame}[t]
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\frametitle{Pre-exploitation}
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\frametitle{Pre-exploitation - payload encoders}
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\begin{sitemize}
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\item Robust and elegant encoders do exist
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\begin{sitemize}
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\item SkyLined's Alpha2 x86 alphanumeric encoder
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\item Spoonm's high-permutation Shikata Ga Nai
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\end{sitemize}
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\pause
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\item Payload encoders generally taken for granted
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\begin{sitemize}
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\item Most encoders use a static decoder stub
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\item Makes NIDS signatures easy to write
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\end{sitemize}
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\end{sitemize}
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\end{frame}
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\subsection{Exploitation}
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\begin{frame}[t]
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\frametitle{Pre-exploitation - NOP generators}
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\begin{sitemize}
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\item NOP generation hasn't publicly changed much
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\begin{sitemize}
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\item Most PoC exploits use predictable single-byte NOPs (\texttt{0x90}), if any
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\item ADMmutate's NOP generator easily signatured by NIDS (Snort, Fnord)
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\item Not considered an important research topic to most
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\end{sitemize}
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\pause
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\item NIDS continues to play chase the tail
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\begin{sitemize}
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\item The mouse always has the advantage; NIDS is reactive
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\item Advanced NOP generators and encoders push NIDS to its limits
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\item Many protocols can be complex to signature (DCERPC fragmentation)
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\end{sitemize}
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\end{sitemize}
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\end{frame}
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\section{Exploitation}
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\begin{frame}[t]
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\frametitle{Exploitation}
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\begin{sitemize}
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\item Exploitation techniques have become very mature
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\begin{sitemize}
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\item Linux/BSD/Solaris techniques are largely unchanged
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\item Windows heap overflows can be made more reliable (Oded/Shok)
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\item Windows SEH overwrites make exploitation easy, even on XPSP2
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\end{sitemize}
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\pause
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\item Exploitation vectors have been beaten to death
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\pause
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\item ...so we wont be talking about them
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\end{sitemize}
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\end{frame}
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\subsection{Post-exploitation}
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\section{Post-exploitation}
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\begin{frame}[t]
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\frametitle{Post-exploitation}
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\begin{sitemize}
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\item Very hot area of research within Metasploit
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\item Commonly used payloads are limited
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\begin{sitemize}
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\item Command shells (cmd.exe) have poor automation support
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\end{sitemize}
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\end{sitemize}
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\end{frame}
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\part{Exploitation technology}
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\pdfpart{Payload Stagers}
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\section{Pre-Exploitation}
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\subsection{NOP Generation}
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\begin{frame}[t]
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\frametitle{Opty2}
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\end{frame}
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\subsection{Payload Encoding}
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\begin{frame}[t]
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\frametitle{Standard XOR}
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\end{frame}
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\begin{frame}[t]
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\frametitle{Additive Feedback XOR}
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\end{frame}
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\begin{frame}[t]
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\frametitle{Shikata Ga Nai}
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\end{frame}
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\section{Post-Exploitation Stagers}
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\begin{frame}[t]
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\frametitle{What are post-exploitation stagers?}
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\end{frame}
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\subsection{Windows Ordinal Stagers}
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\section{Windows Ordinal Stagers}
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\begin{frame}[t]
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\frametitle{Overview}
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\end{frame}
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\begin{frame}[t]
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\frametitle{Implementation: reverse stager}
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\end{frame}
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\subsection{PassiveX}
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\section{PassiveX}
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\begin{frame}[t]
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\frametitle{Overview}
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\end{frame}
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\begin{frame}[t]
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\frametitle{Pros \& cons}
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\end{frame}
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\subsection{Egghunt}
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\section{Egghunt}
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\begin{frame}[t]
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\frametitle{Overview}
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\end{frame}
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\frametitle{Hunting for eggs with system calls}
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\end{frame}
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\section{Post-Exploitation Stages}
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\pdfpart{Payload Stages}
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\begin{frame}[t]
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\frametitle{What are post-exploitation stages?}
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\end{frame}
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\subsection{Library Injection}
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\section{Library Injection}
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\begin{frame}[t]
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\frametitle{Overview}
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\end{frame}
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\begin{frame}[t]
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\frametitle{Library injection in action: VNC}
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\end{frame}
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\subsection{Meterpreter}
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\section{Meterpreter}
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\begin{frame}[t]
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\frametitle{Overview}
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\end{frame}
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\begin{frame}[t]
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\frametitle{Meterpreter extensions in action: Stdapi}
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\end{frame}
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\subsection{DispatchNinja}
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\section{DispatchNinja}
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\begin{frame}[t]
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\frametitle{Cool dN stuff here}
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\end{frame}
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\part{Advanced Post-Exploitation Suites}
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\pdfpart{Post-Exploitation Suites}
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\section{Post-Exploitation Suites}
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\subsection{Motivations \& Goals}
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