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@christoofar
christoofar / main.md
Last active May 14, 2024 04:16
Wrapping a C library call in a defensive Go routine
This study focuses on the strategies used by the "xz backdoor", an extremely
complex piece of malware that contains its own x64 disassembler inside of it 
to find critical locations in your code and hijacks it by swapping out your 
code with its own as it runs.  Because this a machine-code based attack,
all code written in any program language can be attacked and is vulnerable.

Instead of targeting sshd directly, the xz 
backdoor injects itself in the parent systemd process then hijacks the 
GNU Dynamic Linker (ld), before sshd is even started or libcrypto.so is 
@MohamedAlaa
MohamedAlaa / tmux-cheatsheet.markdown
Last active July 29, 2024 16:03
tmux shortcuts & cheatsheet

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname
@davejlong
davejlong / ant-git.xml
Created March 17, 2011 15:30
A simple ant script that will commit and push to a git repo.
<?xml version="1.0"?>
<project name="Demo" default="version" basedir=".">
<macrodef name="git">
<attribute name="command" />
<attribute name="dir" default="" />
<element name="args" optional="true" />
<sequential>
<echo message="git @{command}" />
<exec executable="git" dir="@{dir}">