Vulcan DoS Vs Akamai

In the past I had to do several DoS security audits, with múltiples types of tests and intensities. Sometimes several DDoS protections were present like Akamai for static content, and Arbor for absorb part of the bandwith.

One consideration for the DoS/DDoS tools is that probably it will loss the control of the attacker host, and the tool at least has to be able to stop automatically with a timeout, but can also implement remote response checks.

In order to size the minimum mbps needed to flood a service or to retard the response in a significant amount of time, the attacker hosts need a bandwith limiter, that increments in a logarithmic way up to a limit agreed with the customer/isp/cpd.

There are DoS tools that doesn't have this timeouts, and bandwith limit based on mbps, for that reason I have to implement a LD_PRELOAD based solution: bwcontrol

Although there are several good tools for stressing web servers and web aplications like apache ab, or other common tools used for pen-testing, but I also wrote a fast web flooder in c++ named wflood.

As expected the most effective for taking down the web server are the slow-loris, slow-read and derivatives, few host were needed to DoS an online banking. 

Remote attacks to database and highly dynamic web content were discarded, that could be impacted for sure.

I did another tool in c++ for crafting massive tcp/udp/ip malformed packets, that impacted sometimes on load balancers and firewalls, it was vulcan, it freezed even the firewall client software.

The funny thing was that the common attacks against Akamai hosts, where ineffective, and so does the slow-loris family of attacks, because are common, and the Akamai nginx webservers are well tunned. But when tried vulcan, few intensity was enough to crash Akamai hosts.

Another attack vector for static sites was trying to locate the IP of the customer instead of Akamai, if the customer doesn't use the Akamai Shadow service, it's possible to perform a HTTP Host header scan, and direct the attack to that host bypassing Akamai.

And what about Arbor protection? is good for reducing the flood but there are other kind of attacks, and this protection use to be disabled by default and in local holidays can be a mess.

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$$$ Bug Bounty $$$

What is Bug Bounty ?

A bug bounty program, also called a vulnerability rewards program (VRP), is a crowdsourcing initiative that rewards individuals for discovering and reporting software bugs. Bug bounty programs are often initiated to supplement internal code audits and penetration tests as part of an organization's vulnerability management strategy.




Many software vendors and websites run bug bounty programs, paying out cash rewards to software security researchers and white hat hackers who report software vulnerabilities that have the potential to be exploited. Bug reports must document enough information for for the organization offering the bounty to be able to reproduce the vulnerability. Typically, payment amounts are commensurate with the size of the organization, the difficulty in hacking the system and how much impact on users a bug might have.


Mozilla paid out a $3,000 flat rate bounty for bugs that fit its criteria, while Facebook has given out as much as $20,000 for a single bug report. Google paid Chrome operating system bug reporters a combined $700,000 in 2012 and Microsoft paid UK researcher James Forshaw $100,000 for an attack vulnerability in Windows 8.1.  In 2016, Apple announced rewards that max out at $200,000 for a flaw in the iOS secure boot firmware components and up to $50,000 for execution of arbitrary code with kernel privileges or unauthorized iCloud access.


While the use of ethical hackers to find bugs can be very effective, such programs can also be controversial. To limit potential risk, some organizations are offering closed bug bounty programs that require an invitation. Apple, for example, has limited bug bounty participation to few dozen researchers.

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TERMINOLOGIES OF ETHICAL HACKING

What is the terminologies in ethical hacking?

Here are a few key terms that you will hear in discussion about hackers and what they do:

1-Backdoor-A secret pathway a hacker uses to gain entry to a computer system.

2-Adware-It is the softw-are designed to force pre-chosen ads to display on your system.

3-Attack-That action performs by a attacker on a system to gain unauthorized access.

4-Buffer Overflow-It is the process of attack where the hacker delivers malicious commands to a system by overrunning an application buffer.

5-Denial-of-Service attack (DOS)-A attack designed to cripple the victim's system by preventing it from handling its normal traffic,usally by flooding it with false traffic.

6-Email Warm-A virus-laden script or mini-program sent to an unsuspecting victim through a normal-looking email message.

7-Bruteforce Attack-It is an automated and simplest kind of method to gain access to a system or website. It tries different combination of usernames and passwords,again & again until it gets in from bruteforce dictionary.

8-Root Access-The highest level of access to a computer system,which can give them complete control over the system.

9-Root Kit-A set of tools used by an intruder to expand and disguise his control of the system.It is the stealthy type of software used for gain access to a computer system.

10-Session Hijacking- When a hacker is able to insert malicious data packets right into an actual data transmission over the internet connection.

11-Phreaker-Phreakers are considered the original computer hackers who break into the telephone network illegally, typically to make free longdistance phone calls or to tap lines.

12-Trojan Horse-It is a malicious program that tricks the computer user into opening it.There designed with an intention to destroy files,alter information,steal password or other information.

13-Virus-It is piece of code or malicious program which is capable of copying itself has a detrimental effect such as corrupting the system od destroying data. Antivirus is used to protect the system from viruses.

14-Worms-It is a self reflicating virus that does not alter  files but resides in the active memory and duplicate itself.

15-Vulnerability-It is a weakness which allows a hacker to compromise the security of a computer or network system to gain unauthorized access.

16-Threat-A threat is a possible danger that can exploit an existing bug or vulnerability to comprise the security of a computer or network system. Threat is of two types-physical & non physical.

17-Cross-site Scripting-(XSS) It is a type of computer security vulnerability found in web application.It enables attacker to inject client side script into web pages viwed by other users.

18-Botnet-It is also known as Zombie Army is a group of computers controlled without their owner's knowledge.It is used to send spam or make denial of service attacks.

19-Bot- A bot is a program that automates an action so that it can be done repeatedly at a much higher rate for a period than a human operator could do it.Example-Sending HTTP, FTP oe Telnet at a higer rate or calling script to creat objects at a higher rate.

20-Firewall-It is a designed to keep unwanted intruder outside a computer system or network for safe communication b/w system and users on the inside of the firewall.

21-Spam-A spam is unsolicited email or junk email sent to a large numbers of receipients without their consent.

22-Zombie Drone-It is defined as a hi-jacked computer that is being used anonymously as a soldier or drone for malicious activity.ExDistributing Unwanted Spam Emails.

23-Logic Bomb-It is a type of virus upload in to a system that triggers a malicious action when certain conditions are met.The most common version is Time Bomb.

24-Shrink Wrap code-The process of attack for exploiting the holes in unpatched or poorly configured software.

25-Malware-It is an umbrella term used to refer a variety of intrusive software, including computer viruses,worms,Trojan Horses,Ransomeware,spyware,adware, scareware and other malicious program.

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Medusa: A Speedy, Parallel And Modular Login Brute-forcing Tool

About Medusa
   Medusa is a speedy, parallel, and modular, login brute-forcer. The goal is to support as many services which allow remote authentication as possible. The author considers following items as some of the key features of this application:

   Thread-based parallel testing. Brute-force testing can be performed against multiple hosts, users or passwords concurrently.

   Flexible user input. Target information (host/user/password) can be specified in a variety of ways. For example, each item can be either a single entry or a file containing multiple entries. Additionally, a combination file format allows the user to refine their target listing.

   Modular design. Each service module exists as an independent .mod file. This means that no modifications are necessary to the core application in order to extend the supported list of services for brute-forcing.

   Multiple protocols supported. Many services are currently supported (e.g. SMB, HTTP, MS-SQL, POP3, RDP, SSHv2, among others).

   See doc/medusa.html for Medusa documentation. For additional information:

• Medusa | Foofus.Net
• Medusa Parallel Network Login Auditor

Building on macOS

#getting the source
git clone https://github.com/jmk-foofus/medusa
cd medusa

#macOS dependencies
brew install freerdp
$ export FREERDP2_CFLAGS='-I/usr/local/include'
$ export FREERDP2_LIBS='-I/usr/local/lib/freerdp'

#building
./configure
make

#executing

./src/medusa
Medusa's Installation
   Medusa is already installed on Kali Linux, Parrot Security OS, BlackArch and any other Linux distros based for security pentesting purposes.

   For Debian-based distro users, open your Terminal and enter this command:
sudo apt install medusa
   For Arch Linux-based distro users, enter this command: sudo pacman -S medusa

About the author:

• Email: jmk@foofus.net
• Github: jmk-foofus
• Website: Foofus.net

You might like these similar tools:

• BruteDum: Brute Force attacks SSH, FTP, Telnet, PostgreSQL, RDP, VNC with Hydra, Medusa and Ncrack
• FTPBruter: A FTP Server Brute forcing tool written in Python 3
• Blazy - Crack Website Logins in seconds with Bruteforce attacks
• SocialBox: A Bruteforce Attack Framework for Social Networks
• Ncrack: An High-speed Open-source Network cracking tool
• BruteSpray: A Brute-forcer From Nmap Output And Automatically Attempts Default Creds On Found Services

Download Medusa

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How To Build A "Burner Device" For DEF CON In One Easy Step

TL;DR: Don't build a burner device. Probably this is not the risk you are looking for.

Introduction

Every year before DEF CON people starts to give advice to attendees to bring "burner devices" to DEF CON. Some people also start to create long lists on how to build burner devices, especially laptops. But the deeper we look into the topic, the more confusing it gets. Why are we doing this? Why are we recommending this? Are we focusing on the right things?

What is a "burner device" used for?

For starters, the whole "burner device" concept is totally misunderstood, even within the ITSEC community. A "burner device" is used for non-attribution. You know, for example, you are a spy and you don't want the country where you live to know that you are communicating with someone else. I believe this is not the situation for most attendees at DEF CON. More info about the meaning of "burner" https://twitter.com/Viss/status/877400669669306369

Burner phone means it has a throwaway SIM card with a throwaway phone, used for one specific operation only. You don't use the "burner device" to log in to your e-mail account or to VPN to your work or home.

But let's forget this word misuse issue for a moment, and focus on the real problem.

The bad advice

The Internet is full of articles focusing on the wrong things, especially when it comes to "burner devices". Like how to build a burner laptop, without explaining why you need it or how to use it.

The problem with this approach is that people end up "burning" (lame wordplay, sorry) significant resources for building a secure "burner device". But people are not educated about how they should use these devices.

The threats

I believe the followings are some real threats which are higher when you travel:

1. The laptop getting lost or stolen.

2. The laptop getting inspected/copied at the border.

These two risks have nothing to do with DEF CON, this is true for every travel.

Some other risks which are usually mentioned when it comes to "burner devices" and DEF CON:

3. Device getting owned via physical access while in a hotel room.

4. Network traffic Man-in-the-middle attacked. Your password displayed on a Wall of Sheep. Or having fun with Shellshock with DHCP. Information leak of NTLM hashes or similar.

5. Pwning the device via some nasty things like WiFi/TCP/Bluetooth/LTE/3G/GSM stack. These are unicorn attacks.

6. Pwning your device by pwning a service on your device. Like leaving your upload.php file in the root folder you use at CTFs and Nginx is set to autostart. The author of this article cannot comment on this incident whether it happened in real life or is just an imaginary example. 

How to mitigate these risks? 

Laptop getting stolen/lost/inspected at the border?

1. Bring a cheap, empty device with you. Or set up a fake OS/fake account to log in if you really need your day-to-day laptop. This dummy account should not decrypt the real files in the real account.

Device getting owned while in a hotel room with physical access

1. Don't bring any device with you.

2. If you bring any, make it tamper-resistant. How to do that depends on your enemy, but you can start by using nail glitter and Full Disk Encryption. Tools like Do Not Disturb help. It also helps if your OS supports suspending DMA devices before the user logs in.

3. If you can't make the device tamper-resistant, use a device that has a good defense against physical attackers, like iOS.

4. Probably you are not that important anyway that anyone will spend time and resources on you. If they do, probably you will only make your life miserable with all the hardening, but still, get pwned.

Network traffic Man-in-the-middle attacked

1. Don't bring any device with you.

2. Use services that are protected against MiTM. Like TLS.

3. Update your OS to the latest and greatest versions. Not everyone at DEF CON has a 0dayz worth of 100K USD, and even the ones who have won't waste it on you. 

4. Use fail-safe VPN. Unfortunately, not many people talk about this or have proper solutions for the most popular operating systems.

5. For specific attacks like Responder, disable LLMNR, NBT-NS, WPAD, and IPv6 and use a non-work account on the machine. If you don't have the privileges to do so on your machine, you probably should not bring this device with you. Or ask your local IT to disable these services and set up a new account for you.

Pwning the device via some nasty thing like WiFi/TCP/Bluetooth/LTE/3G/GSM stack

1. Don't bring any device with you.

2. If you bring any, do not use this device to log in to work, personal email, social media, etc.

3. Don't worry, these things don't happen very often. 

Pwning your device by pwning a service on your device

Just set up a firewall profile where all services are hidden from the outside. You rarely need any service accessible on your device at a hacker conference.

Conclusion

If you are still so afraid to go there, just don't go there. Watch the talks at home. But how is the hotel WiFi at a random place different from a hacker conference? Turns out, it is not much different, so you better spend time and resources on hardening your daily work devices for 365 days, instead of building a "burner device".

You probably need a "burner device" if you are a spy for a foreign government. Or you are the head of a criminal organization. Otherwise, you don't need a burner device. Maybe you need to bring a cheap replacement device.

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How To Automatically Translate Any Android App Into Any Language

There is the number of applications which are not having the features of translating apps to your favorite languages. This makes it difficult for the users to translate apps into their native language. Today, I am going to tell you about an application which will help you to Automatically Translate Any Android App into Any Language.

Nowadays there are around hundreds of application on play store which is having the feature of translate but some applications don't have this features. This is just because they don't have proper developers or sometimes translators.

There is an application launched by Akhil Kedia from XDA Developer which made it possible for all the users to translate the application to any language you need. This is something which everyone needs it.

Akhil Kedia built an Xposed module in which users can easily change the language of any application to whichever they like or love. Personally, we all love English language but there are peoples in many parts of the world they are suitable for other languages.

Automatically Translate Any Android App into Any Language

Automatically Translate Any Android App into Any Language

The best part about this Xposed Module is that it translates the application to any language whichever you like and there are around many languages which you can try it. The other best part about this application is that the user interface which is amazing.

In an Android application, the best thing is the user interface. This is something which helps users to download the module or application to run again and again. There are about many settings which can be changed from the application.

Read also;- How To Hack and Track any Phone

The setup process is a bit different from other applications but if you will look at the application you will definitely love it. Just because of too many settings and features available in the application and you can turn it to any language without any crashing issues of the application.

Requirements:

• Rooted Android Phone
• Xposed Framework installed on your phone.
• Android 5.0 or higher.
• Unknown Source enabled (You might be knowing it)

How to Automatically Translate Any Android App into Any Language

• Download the module called as All Trans from here: Download

• Now, after installation, it will ask you to reboot your phone to activate the module
• Now, you need to get the API Key to get it you need to sign up with Yandex first so sign up: Yandex Sign up

• Then after sign up you will get the API key just enter the API key in the All-Trans application.

• Open All Trans Application and the swipe right to Global Settings.

• Click on Enter Yandex Subscription key and then enter your key.

• In Global Settings click on Translate from and select the Language the application is already in. (Eg: English)

• Now, click on translate to and select your favorite language. This will change the language.

• Swipe left and select the applications which you need to translate and done.

• After selecting just open the application and the language is translated automatically.

Final Words:

This is the best and easy way to Automatically Translate Any Android App into Any Language. I hope you love this article.Share this article with your friends and keep visiting for more tips and tricks like this and I will meet you in the next one.

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