Direito - Unip - DNA 2,03/08

Direito Unip - DNA 2,3/08 · às 8/29/2020

Secrete Hack codes for Android Mobile phones

Secret hack codes are usually hidden from users to prevent misuse and exploit. Android is a very new platform so there aren't many hack codes for Androids available. Today I will share all of the hack codes of Android cellphones that I know. I have tested these codes on my Samsung Galaxy with the Android OS version 2.2. I am sure these will work on all previous versions.

Secret Hack Codes for Android Mobile Phones:

1. Complete Information About Your Phone

*#*#4636#*#*

This code can be used to get some interesting information about your phone and battery. It shows the following 4 menus on the screen:

Phone information
Battery information (How to maximize or boost battery life in android phones)
Battery history
Usage statistics

2. Factory data reset

*#*#7780#*#*

This code can be used for a factory data reset. It'll remove the following things:

Google account settings stored in your phone
System and application data and settings
Downloaded applications

It will NOT remove:

Current system software and bundled application
SD card files e.g. photos, music files, etc.

Note: Once you give this code, you will get a prompt screen asking you to click on the "Reset phone" button, giving you the chance to cancel your operation.

3. Format Android Phone

*2767*3855#

Think before you input this code. This code is used for factory formatting. It will remove all files and settings, including the internal memory storage. It will also reinstall the phone firmware.

Note: Once you give this code, there is no way to cancel the operation unless you remove the battery from the phone.

4. Phone Camera Update

*#*#34971539#*#*

This code is used to get information about phone camera. It shows following 4 menus:

Update camera firmware in image (Don't try this option)
Update camera firmware in SD card
Get camera firmware version
Get firmware update count

WARNING: NEVER use the first option. Your phone camera will stop working and you will need to take your phone to a service center to reinstall camera firmware.

5. End Call/Power

*#*#7594#*#*

This one is my favorite. This code can be used to change the action of the "End Call/Power" button. Be default, if you hold the button down for a long time, it shows a screen asking you to select between silent mode, airplane mode, and power off.

Using this code, you can enable this button to power off without having to select an option, saving you some time.

6. File Copy for Creating Backup

*#*#273283*255*663282*#*#*

This code opens a file copy screen where you can backup your media files e.g. images, sound, video and voice memo.

7. Service Mode

*#*#197328640#*#*

This code can be used to enter into service mode. In service mode, you can run various tests and change settings.

8. WLAN, GPS and Bluetooth Secret Hack Codes for Android:

*#*#232339#*#* OR *#*#526#*#* OR *#*#528#*#* – WLAN test (Use "Menu" button to start various tests)

*#*#232338#*#* – Shows WiFi MAC address

*#*#1472365#*#* – GPS test

*#*#1575#*#* – Another GPS test

*#*#232331#*#* – Bluetooth test

*#*#232337#*# – Shows Bluetooth device address

9. Codes to get Firmware version information:

*#*#4986*2650468#*#* – PDA, Phone, H/W, RFCallDate

*#*#1234#*#* – PDA and Phone

*#*#1111#*#* – FTA SW Version

*#*#2222#*#* – FTA HW Version

*#*#44336#*#* – PDA, Phone, CSC, Build Time, Changelist number

10. Codes to launch various Factory Tests:

*#*#0283#*#* – Packet Loopback

*#*#0*#*#* – LCD test

*#*#0673#*#* OR *#*#0289#*#* – Melody test

*#*#0842#*#* – Device test (Vibration test and BackLight test)

*#*#2663#*#* – Touch screen version

*#*#2664#*#* – Touch screen test

*#*#0588#*#* – Proximity sensor test

*#*#3264#*#* – RAM version

@EVERYTHING NT

More information

Direito Unip - DNA 2,3/08 · às 8/29/2020

Preface

As I wrote in a previous blog post, I had an engagement last year where my task was to exfiltrate data from a workstation on some sort of storage media. The twist in that task was Lumension Sanctuary Device Control, and the version was 4.3.2, but I am not sure how newer version work and this seems to be a more general problem with device control solution, for example with Symantec products.

But what is a device control solution? In short, they audit I/O device use and block the attempts to use unauthorized devices. This includes hardware such as USB, PS/2, FireWire, CD/DVD so basically every I/O port of a computer. In my opinion, these are pretty good things and they offer a better looking solution than de-soldering the I/O ports from the motherboards or hot-gluing them, but on the other hand, they can be bypassed.

Bypass

OK, so what is the problem? Well the way these device control solutions work is that they load a few kernel drivers to monitor the physical ports of the machine. However... when you boot up the protected computer in safe mode, depending on the device control solution software, some of these drivers are not loaded (or if you are lucky, none of those modules will be loaded...) and this opens up the possibility to exfiltrate data.

In theory, if you have admin (SYSTEM maybe?) privileges, you might as well try to unload the kernel drivers. Just do not forget, that these device control solutions also have a watchdog process, that checks the driver and automatically loads it back if it is unloaded, so look for that process and stop or suspend it first.

In my case with the Lumension Sanctuary Device Control, I have found that when I boot the Workstation protected by the device control software in Safe Mode where, software's key logger protection module is not running... so I was still unable to use a USB stick, or a storage media, but I could plug in a keyboard for example...hmmm :)

As some of you probably already figured it out, now it is possible to use a pre-programmed USB HID, for example a Teensy! : ) I know about three different project, that uses this trick like these two mentioned in a Hackaday post, or this one. Unfortunately, the site ob-security.info no longer seems to be available (well, at least it is no longer related to infosec :D ), but you can still find the blog post and the files with the Wayback Machine.

For the hardware part, the wiring of the Teensy and the SD card adaptor is the same as I showed in the post on Making a USB flash drive HW Trojan or in the Binary deployment with VBScript, PowerShell or .Net csc.exe compiler post, so I will not copy it here again.

I have to note here that there are other ways to bypass these device control solutions, like the method what Dr. Phil Polstra did with the USB Impersonator, which is basically looks for an authorized device VID/PID and then impersonates that devices with the VID/PID.

Mitigation

Most probably, you will not need safe mode for the users, so you can just disable it... I mean, it is not that easy, but luckily there is a great blog post on how to do that. BTW, the first page of the post is for Windows XP, but you are not using XP anymore, aren't you? ;)

Alternatively, as I mentioned at the beginning, you might as well use some physical countermeasure (de-soldering/hot-gluing ports). That shit is ugly, but it kinda works.

Conclusion

Next time you will face a device control solution, try out these tricks, maybe they will work, and if they do, well, that's a lot of fun. :)

But don't get me wrong, these device control solutions and similar countermeasures are a good thing and you should use something like this! I know that they make doing business a bit harder as you are not able to plugin whatever USB stick you want, but if you buy a pile of hardware encrypted flash drives, and only allow those to be plugged in, you are doing it right ;)

Related word

Direito Unip - DNA 2,3/08 · às 8/29/2020

Social engineering is a nontechnical method of breaking into a system or network. It's the process of deceiving users of a system and convincing them to perform acts useful to the hacker, such as giving out information that can be used to defeat or bypass security mechanisms. Social engineering is important to understand because hackers can use it to attack the human element of a system and circumvent technical security measures. This method can be used to gather information before or during an attack.

A social engineer commonly uses the telephone or Internet to trick people into revealing sensitive information or to get them to do something that is against the security policies of the organization. By this method, social engineers exploit the natural tendency of a person to trust their word, rather than exploiting computer security holes. It's generally agreed that users are the weak link in security; this principle is what makes social engineering possible.

The most dangerous part of social engineering is that companies with authentication processes, firewalls, virtual private networks, and network monitoring software are still wide open to attacks, because social engineering doesn't assault the security measures directly. Instead, a social-engineering attack bypasses the security measures and goes after the human element in an organization.

Types of Social Engineering-Attacks

There are two types of Social Engineering attacks

Human-Based

Human-based social engineering refers to person-to-person interaction to retrieve the desired information. An example is calling the help desk and trying to find out a password.

Computer-Based

Computer-based social engineering refers to having computer software that attempts to retrieve the desired information. An example is sending a user an email and asking them to reenter a password in a web page to confirm it. This social-engineering attack is also known as phishing.

Human-Based Social Engineering

Human-Based further categorized as follow:

Impersonating an Employee or Valid User

In this type of social-engineering attack, the hacker pretends to be an employee or valid user on the system. A hacker can gain physical access by pretending to be a janitor, employee, or contractor. Once inside the facility, the hacker gathers information from trashcans, desktops, or computer systems.

Posing as an Important User

In this type of attack, the hacker pretends to be an important user such as an executive or high-level manager who needs immediate assistance to gain access to a computer system or files. The hacker uses intimidation so that a lower-level employee such as a help desk worker will assist them in gaining access to the system. Most low-level employees won't question someone who appears to be in a position of authority.

Using a Third Person

Using the third-person approach, a hacker pretends to have permission from an authorized source to use a system. This attack is especially effective if the supposed authorized source is on vacation or can't be contacted for verification.

Calling Technical Support

Calling tech support for assistance is a classic social-engineering technique. Help desk and technical support personnel are trained to help users, which makes them good prey for social-engineering attacks.

Shoulder Surfing

Shoulder surfing is a technique of gathering passwords by watching over a person's shoulder while they log in to the system. A hacker can watch a valid user log in and then use that password to gain access to the system.

Dumpster Diving

Dumpster diving involves looking in the trash for information written on pieces of paper or computer printouts. The hacker can often find passwords, filenames, or other pieces of confidential information.

Computer-Based Social Engineering

Computer-based social-engineering attacks can include the following:

Email attachments
Fake websites
Pop-up windows

Insider Attacks

If a hacker can't find any other way to hack an organization, the next best option is to infiltrate the organization by getting hired as an employee or finding a disgruntled employee to assist in the attack. Insider attacks can be powerful because employees have physical access and are able to move freely about the organization. An example might be someone posing as a delivery person by wearing a uniform and gaining access to a delivery room or loading dock. Another possibility is someone posing as a member of the cleaning crew who has access to the inside of the building and is usually able to move about the offices. As a last resort, a hacker might bribe or otherwise coerce an employee to participate in the attack by providing information such as passwords.

Identity Theft

A hacker can pose as an employee or steal the employee's identity to perpetrate an attack. Information gathered in dumpster diving or shoulder surfing in combination with creating fake ID badges can gain the hacker entry into an organization. Creating a persona that can enter the building unchallenged is the goal of identity theft.

Phishing Attacks

Phishing involves sending an email, usually posing as a bank, credit card company, or other financial organization. The email requests that the recipient confirm banking information or reset passwords or PINs. The user clicks the link in the email and is redirected to a fake website. The hacker is then able to capture this information and use it for financial gain or to perpetrate other attacks. Emails that claim the senders have a great amount of money but need your help getting it out of the country are examples of phishing attacks. These attacks prey on the common person and are aimed at getting them to provide bank account access codes or other confidential information to the hacker.

Online Scams

Some websites that make free offers or other special deals can lure a victim to enter a username and password that may be the same as those they use to access their work system.
The hacker can use this valid username and password once the user enters the information in the website form. Mail attachments can be used to send malicious code to a victim's system, which could automatically execute something like a software keylogger to capture passwords. Viruses, Trojans, and worms can be included in cleverly crafted emails to entice a victim to open the attachment. Mail attachments are considered a computer-based social-engineering attack.