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

broestls

# This script will manually rip out all VMware Tools registry entries and files for Windows 2008-2019
# Tested for 2019, 2016, and probably works on 2012 R2 after the 2016 fixes.

# This function pulls out the common ID used for most of the VMware registry entries along with the ID
# associated with the MSI for VMware Tools.
function Get-VMwareToolsInstallerID {
    foreach ($item in $(Get-ChildItem Registry::HKEY_CLASSES_ROOT\Installer\Products)) {
        If ($item.GetValue('ProductName') -eq 'VMware Tools') {
            return @{
                reg_id = $item.PSChildName;

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>

BugHunter001

site.com/file.php
response = nothing

http://site.com/file.php~
response = source
-------------------------------------
https://github.com/kleiton0x00/CRLF-one-liner
------------------------------------------
try to add admin as your user,
change his email to yours, 

jthuraisamy

#include <Windows.h>
#include <ImageHlp.h>
#include <strsafe.h>
#include "loaded_psp_drivers.h"

#include <set>
#include <string>
#include <algorithm>

#pragma comment(lib, "crypt32.lib")

GeneralTesler

#include <Windows.h>
#include <iostream>
#include <DbgHelp.h>
#include <processsnapshot.h>
#include <TlHelp32.h>
#include <processthreadsapi.h>

//process reflection stuff copied from: https://github.com/hasherezade/pe-sieve/blob/master/utils/process_reflection.cpp
//minidump/process searching copied from: https://ired.team/offensive-security/credential-access-and-credential-dumping/dumping-lsass-passwords-without-mimikatz-minidumpwritedump-av-signature-bypass
//compile using: cl.exe refl.cpp /DUNICODE

mihaiserban

# This file contains pin mappings for the Creality Ender 5 Plus.
# Ender 5 Plus stock uses a Creality v2.2 board, similar to CR-20 Pro.
# To use this config, the firmware should be compiled for the AVR atmega2560.

# See the example.cfg file for a description of available parameters.

[stepper_x]
step_pin: PF0
dir_pin: PF1
enable_pin: !PD7

mgeeky

//
// Simple Shellcode loader implemented in Golang.
//
// Compilation:
//      $ go build -o foo.exe shellcodeLoader.go
//
// Mariusz B. / mgeeky (@mariuszbit), '20 
// <mb@binary-offensive.com>
//

mgeeky

Download Cradles

0) Extra goodies

• Obfuscated FromBase64String with -bxor nice for dynamic strings deobfuscation:

$t=([type]('{1}{0}'-f'vert','Con'));($t::(($t.GetMethods()|?{$_.Name-clike'F*g'}).Name).Invoke('Yk9CA05CA0hMV0I=')|%{$_-bxor35}|%{[char]$_})-join''

• The same as above but for UTF-16 base64 encoded strings:

monoxgas

' Need to add project references to C:\Windows\Microsoft.NET\Framework\v2.0.50727\mscoree.tlb and mscorlib.tlb

Private Declare PtrSafe Function DispCallFunc Lib "oleaut32.dll" (ByVal pv As LongPtr, ByVal ov As LongPtr, ByVal cc As Integer, ByVal vr As Integer, ByVal ca As Long, ByRef pr As Integer, ByRef pg As LongPtr, ByRef par As Variant) As Long
Private Declare PtrSafe Sub RtlMoveMemory Lib "kernel32" (Dst As Any, Src As Any, ByVal BLen As LongPtr)
Private Declare PtrSafe Function VarPtrArray Lib "VBE7" Alias "VarPtr" (ByRef Var() As Any) As LongPtr

#If Win64 Then
Const LS As LongPtr = 8&
#Else
Const LS As LongPtr = 4&