welcome to Angelina Juilia blog: April 2020

Saturday, April 25, 2020

Malicious USB Drives Infect 35,000 Computers With Crypto-Mining Botnet

Cybersecurity researchers from ESET on Thursday said they took down a portion of a malware botnet comprising at least 35,000 compromised Windows systems that attackers were secretly using to mine Monero cryptocurrency. The botnet, named "VictoryGate," has been active since May 2019, with infections mainly reported in Latin America, particularly Peru accounting for 90% of the compromised

via The Hacker News

Thursday, April 23, 2020

Httpgrep - Scans HTTP Servers To Find Given Strings In URIs

A python tool which scans for HTTP servers and finds given strings in URIs.

Usage

$ httpgrep -H

--==[ httpgrep by nullsecurity.net ]==--

usage

  httpgrep -h <args> -s <arg> [opts] | <misc>

opts

  -h <hosts|file>   - single host or host-range/cidr-range or file containing
                      hosts, e.g.: foobar.net, 192.168.0.1-192.168.0.254,
                      192.168.0.0/24, /tmp/hosts.txt
  -p <port>         - port to connect to (default: 80)
  -t                - use TLS/SSL to connect to service
  -u <URI>          - URI to search given strings in, e.g.: /foobar/, /foo.html
                      (default /)
  -s <string|file>  - a single string or multile strings in a file to find in
                      given URIs, e.g. 'tomcat 8', '/tmp/igot0daysforthese.txt'
  -b <bytes>        - num bytes to read from response. offset == response[0].
                      (default: 64)
  -x <threads>      - num thre   ads for concurrent checks (default: 50)
  -c <seconds>      - num seconds for socket timeout (default: 2.5)
  -i                - use case-insensitive search
  -v                - verbose mode (default: quiet)

misc

  -H                - print help
  -V                - print version information

Author
noptrix

Notes

quick'n'dirty code
httpgrep is already packaged and available for BlackArch Linux
My master-branches are always stable; dev-branches are created for current work.
All of my public stuff you find are officially announced and published via nullsecurity.net.

License
Check docs/LICENSE.

Disclaimer
We hereby emphasize, that the hacking related stuff found on nullsecurity.net are only for education purposes. We are not responsible for any damages. You are responsible for your own actions.

Download Httpgrep

via KitPloitRelated posts

Wednesday, April 22, 2020

Snmpcheck

"snmpcheck is a free open source utility to get information via SNMP protocols. It works fine against Windows, Linux, Cisco, HP-UX, SunOS systems and any devices with SNMP protocol support. It could be useful for penetration testing or systems monitoring. snmpcheck has been tested on GNU/Linux, *BSD, Windows systems and Cygwin. snmpcheck is distributed under GPL license and based on Athena-2k script by jshaw. " read more...

Website: http://www.nothink.org/perl/snmpcheck

Tuesday, April 21, 2020

THC-Hydra

"A very fast network logon cracker which support many different services. Number one of the biggest security holes are passwords, as every password security study shows. Hydra is a parallized login cracker which supports numerous protocols to attack. This tool is a proof of concept code, to give researchers and security consultants the possibility to show how easy it would be to gain unauthorized access from remote to a system." read more...

Website: http://freeworld.thc.org/thc-hydra

More information

Monday, April 20, 2020

Ask And You Shall Receive

I get emails from readers asking for specific malware samples and thought I would make a mini post about it.

Yes, I often obtain samples from various sources for my own research.

I am sometimes too lazy/busy to post them but don't mind sharing.
If you are looking for a particular sample, feel free to ask. I might have it.

Send MD5 (several or few samples). I cannot provide hundreds/thousands of samples or any kind of feeds. If you ask for a particular family, I might be able to help if I already have it.

Unfortunately, I do not have time to do homework for students and provide very specific sets for malware with specific features as well as guarantee the C2s are still active. Send your MD5(s) or at least malware family and I check if I have it :) If i have it, I will either send you or will post on the blog where you can download.

If you emailed me in the past and never got an answer, please remind me. Sometimes emails are long with many questions and I flag them to reply to later, when I have time and they get buried or I forget. It does not happen very often but accept my apologies if it happened to you.

Before you ask, check if it is already available via Contagio or Contagio Mobile.
1. Search the blog using the search box on the right side
2. Search here https://www.mediafire.com/folder/b8xxm22zrrqm4/BADINFECT
3. Search here https://www.mediafire.com/folder/c2az029ch6cke/TRAFFIC_PATTERNS_COLLECTION
4. Search here https://www.mediafire.com/folder/78npy8h7h0g9y/MOBILEMALWARE

Cheers, Mila

OWASP Announcement

🕬 OWASP Announcement:

The OWASP Foundation has been chosen to be 1 of 50 Open Source Organizations to participate in the inaugural year of the Google Season of Docs program.

The goal of Season of Docs is to provide a framework for technical writers and open source projects to work together towards the common goal of improving an open source project's documentation. For technical writers who are new to open source, the program provides an opportunity to gain experience in contributing to open source projects. For technical writers who're already working in open source, the program provides a potentially new way of working together. Season of Docs also gives open source projects an opportunity to engage more of the technical writing community.

We would like to thank the OWASP members that donate their time and knowledge as administrators and mentors. It would not be possible if not for these individuals:

Spyros, Fabio, and Konstantinos

Nmap: Getting Started Guide

Nmap is a free utility tool for network discovery, port scanning and security auditing, even though we can use it for more than that but in this article we will learn how to do these three things with nmap.

The original author of nmap is Gordon Lyon (Fyodor). Nmap is licensed under GPL v2 and has available ports in many different languages. Nmap is available for Linux, Windows, and Mac OS X. You can download your copy of nmap from their website.

Lets get started with nmap.

When performing pentests we always look for networks we are going to attack. We need to identify live hosts on the network so that we can attack them. There are plenty of tools available for finding live hosts on a network but nmap is one of the best tools for doing this job.

Lets start with simple host (target) discovery scans i,e scans that will tell us which ip address is up on our target network. Those ip addresses which are up on our target network are the ones that are assigned to a device connected on our target network. Every device on the network is going to have a unique ip address.
To perform a simple host discovery scan we use the following command

nmap -v -sn 10.10.10.0/24

flags we used in the above command are
-v for verbose output
-sn to disable port scan (we don't want to scan for ports right now)

Following the flags is the ip address of the target network on which we want to look for live hosts. The /24 at the end of the ip address is the CIDR that specifies the subnet of the network on which we are looking for live hosts.

After running the above command you should get a list of live hosts on your target network.
If you just want to know the list of ip addresses your command is going to scan, you can use the -sL flag of the nmap like this.

nmap -sL 10.10.10.0/24

this command will simply output the list of ip addresses to scan.

We sometimes want to do dns resolution (resolving ip addresses to domain names) when performing our network scans and sometimes we don't want dns resolution. While performing a host discovery scan with nmap if we want to perform dns resolution we use -R flag in our command like this:

nmap -v -sn -R 10.10.10.0/24

And if we don't want to perform dns resolution of hosts during our scan we add the -n flag to our command like this:

nmap -v -sn -n 10.10.10.0/24

After we have discovered the hosts that are up on our target network, we usually put the ip addresses of these hosts into a file for further enumeration.

Next step in our enumeration would be to detect which operating system and which ports are running on these live hosts, for that we run this command:

nmap -O -v 10.10.10.119

here we use -O (capital o not zero) for operating system detection and by default nmap performs SYN Scan for port discovery. However nmap scans for 1000 ports only by default of a particular host.

To make nmap go over a list of ip addresses in a file we use -iL flag like this:

nmap -O -v -iL targetlist

where targetlist is the name of the file which contains ip addresses that we want to perform port scan on.

To make nmap scan all the ports of a target we use the -p flag like this:

nmap -p- -v 10.10.10.121

We can also specify a range of ports using the -p flag like this:

nmap -p1-500 -v 10.10.10.121

here 1-500 means scan all the ports from 1 to 500.

We can use a number of scan techniques to discover open ports on our network but I will only discuss some of them for brevity.

We can perform a TCP SYN scan using nmap with -sS flag like this:

nmap -sS -v 10.10.10.150

We have also flags for TCP connect and ACK scans which are -sT -sA

nmap -sT -v 10.10.10.150

nmap -sA -v 10.10.10.150

We can also perform UDP scan as well instead of TCP scan using -sU flag

nmap -sU -v 10.10.10.150

We can perform TCP Null, FIN, and Xmas scans using the flags -sN, -sF, -sX

nmap -sN -v 10.10.10.150

nmap -sF -v 10.10.10.150

nmap -sX -v 10.10.10.150

If you don't know what these scans are then please visit Port Scanning Techniques and Algorithms for explanation.

After discovering the open ports on our target host, we want to enumerate what services are running on those open ports. To enumerate services and versions information on open ports we use the -sV flag like this:

nmap -sV -v 10.10.10.118

This should give us information about what services are running on what ports and what versions of those services are running on the target host.

nmap has an interesting feature called NSE nmap scripting engine. It allows users to write their own scripts, using the Lua programming language, to automate a wide variety of networking tasks. nmap ships with a diverse set of scripts which are very helpful to enumerate a target. To use the nmap default set of scripts while enumerating the target, we use the -sC flag like this:

nmap -sC -sV -v 10.10.10.118

We can also save the results of our nmap scans to a file using the -o flag like this

nmap -sC -sV -v -oA defaultscan 10.10.10.119

here -oA tells the nmap to output results in the three major formats at once and defaultscan is the name of the file that will be prepended to all the three output files.

This is the end of this short tutorial see you next time.

References:
https://nmap.org/book/scan-methods-null-fin-xmas-scan.html

Related word

Bypass Hardware Firewalls

This is just a collection of links about my DEF CON 22 presentation, and the two tools I released:

Slides:
http://www.slideshare.net/bz98/defcon-22-bypass-firewalls-application-white-lists-secure-remote-desktops-in-20-seconds

Tools:
https://github.com/MRGEffitas/Write-into-screen
https://github.com/MRGEffitas/hwfwbypass

Presentation video from Hacktivity:
https://www.youtube.com/watch?v=KPJBckmhtZ8

Technical blog post:
https://blog.mrg-effitas.com/bypass-hardware-firewalls-def-con-22/

Have fun!

More info

Voodoo-Kali - Kali Linux Desktop On Windows 10

How it works?
* Kali Linux with XFCE Desktop Environment in Windows Subsystem for Linux (WSL)
* VcXsrv X Server for Windows is doing the hard GUI lifting
* XFCE is started natively in WSL and displayed by VcXsrv

Install Voodoo-Kali:
1, Enable WSL and install Kali Linux from the Microsoft Store. Read Install Kali Linux desktop on Windows 10 from Microsoft Store

2, To start Kali Linux in Windows 10, open Command Prompt and enter the command: kali

3, Enter this commands:
  apt install wget -y
  wget https://raw.githubusercontent.com/Re4son/WSL-Kali-X/master/install-WSL-Kali-X
  bash ./install-WSL-Kali-X

4, Download and install VcXsrv Windows X Server from SourceForge

5, Start VcXsrv, accept change in firewall rules, exit VcXsrv

Run Voodoo-Kali:
Start kali in Windows as normal user (that's default), and launch Voodoo-Kali:
* as normal user: ./start-xfce
* as root: sudo /root/xtart-xfce

Run Kali Desktop in an RDP session:
In Kali Linux WSL, type: sudo /etc/init.d/xrdp start
In Windows 10, open Run and enter mstsc.exe and connect to "127.0.0.1:3390"

Status: Voodoo-Kali is in its infancy and it is far from being elegant. I'm working on it though and step by step I'll push out improvements. Below a snippet of the To-Do list:
* Clean up and comment the scripts
* Make for a cleaner exit
* Better error handling and dependency checking (get rid of sleep, etc.)
* Improve stability of Java programs
* Improve the looks??
* …

Any help is truly appreciated, in any shape or form – from tips to pull requests.
Why don't you join the forums to discuss?

Further Information:
* Offsec – Kali Linux in the Windows App Store
* MSDN – Windows Subsystem for Linux Overview

Download Voodoo-Kali

welcome to Angelina Juilia blog

Saturday, April 25, 2020

Malicious USB Drives Infect 35,000 Computers With Crypto-Mining Botnet

Related links

ShellShock Payload Sample Linux.Bashlet