Minggu, 30 Agustus 2020

CEH Practical: Gathering Target Information: Reconnaissance And Competitive Intelligence

CEH Exam Objectives:

Describe Reconnaissance. 

Describe aggressive/competitive intelligence.


Reconnaissance

 Reconnaissance is the process of gathering informative data about a particular target of a malicious hack by exploring the targeted system. Basically two types of Reconnaissance exist i.e. Active and Passive. Active reconnaissance typically related to port scanning and observing the vulnerabilities about the targeted system (i.e., which ports are left vulnerable and/or if there are ways around the firewall and routers). Passive reconnaissance typically you will not be directly connected to a computer system. This process is used to gather essential information without ever interacting with the target systems.

Understand Aggressive Intelligence 

Competitive intelligence means information gathering about competitors' products, marketing, and technologies. Most competitive intelligence is non intrusive to the company being investigated and is benign in nature. It's used for product comparison or as a sales and marketing tactic to better understand how competitors are positioning their products or services.

Online tools to gather competitive intelligence

Exercise 1.1

Using KeywordSpy 

To use the KeywordSpy online tool to gather competitive intelligence information:  
  • Go to the www.keywordspy.com website and enter the website address of the target in the search field 

  • Review the report and determine valuable keywords, links, or other information.

 

Exercise 1.2

Using spyfu

  • Go to your browser and type www.spyfu.com and enter the website address of the target in the search field.

Exercise 1.3

Using the EDGAR Database to Gather Information

1. Determine the company's stock symbol using Google.

2. Open a web browser to www.sec.gov.

3. On the right side of the page, click the link EDGAR Filers. 

4. Click the Search For Filings menu and enter the company name or stock  symbol to search the filings for information. You can learn, for example, where the company is registered and who reported the filing.

5. Use the Yahoo! yellow pages ( http://yp.yahoo.com ) to see if an address or phone number is listed for any of the employee names you have located.

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Russian Arrested After Offering $1 Million To U.S. Company Employee For Planting Malware

Hackers always find a way in, even if there's no software vulnerability to exploit. The FBI has arrested a Russian national who recently traveled to the United States and offered $1 million in bribe to an employee of a targeted company for his help in installing malware into the company's computer network manually. Egor Igorevich Kriuchkov, 27-year-old, entered the United States as a tourist

via The Hacker News
This article is the property of Tenochtitlan Offensive Security. Verlo Completo --> https://tenochtitlan-sec.blogspot.com
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Sabtu, 29 Agustus 2020

How To Hack Any Whatsapp Account In 2020

The article will also be broken down into different subtopics and subcategories. This to make it easy for those who are just interested in skimming through the article to pick the part of WhatsApp hack they are most interested in. Just incase you don't have enough time to go through the entire article.

Search queries like these are a common place; Can WhatsApp be hacked? Can you read WhatsApp messages? How safe is the most popular trade fair in the world? This article gives you all the solution you need to hack any WhatsApp account, as well as how to protect yourself from a WhatsApp hack attack.

Although the messenger is now on an end-to-end encryption, WhatsApp is still not totally safe from espionage. WhatsApp chats and messages can still be accessed and read remotely, and old &deleted WhatsApp chats and messages retrieved.

WhatsApp Spy: Hack WhatsApp Chats and Messages

A very simple solution is to use a software that can hack WhatsApp remotely. All manufacturers offer to read the WhatsApp messages an extra web portal. In addition to the Whatsapp messages but can also spy on other messengers. So you can also have access to social media accounts.

The software may only be installed on a smartphone. If the user of the smartphone has been informed about the installation and effects.

WhatsApp Hacker: 3 Steps to Hack WhatsApp in 2020

You can hack Whatsapp using a second cell phone. No extra SIM card is necessary for this. The guide also works with a tablet. With this method, the other phone only needs to clone WhatsApp messages is internet connection.

The trick to hack Whatsapp successfully is not a software bug. It's the way WhatsApp has developed the setup wizard. Since there are no user accounts with passwords and you log in via the mobile number, here lies the vulnerability. But you can also protect yourself from the Whatsapp hack.

Hack WhatsApp Chat with the Best WhatsApp Hacking Tool

To read Whatsapp messages, the mobile phone number of the target must be known. The cell phone can remain locked. There is no need to install software to hack and read Whatsapp messages. Even with the PIN or fingerprint, the Whatsapp account can be hacked.

STEP 1: Create a New WhatsApp Account

To hack an account from Whatsapp, the app from the App Store must be installed on the second cell phone. After the installation of Whatsapp, target's phone number is entered. A confirmation request must be waited until access to the smartphone of the victim exists.

STEP 2: WhatsApp Account Confirmation

The confirmation of the Whatsapp account is the actual security risk of the messenger. Whatsapp usually confirms the registration via SMS. Occasionally the confirmation will also be sent by automated phone call via a phone call.

Calls and text messages can be read and taken by anyone even when the screen is locked. So that the WhatsApp hack does not stand out, the SMS must be removed from the start screen by swiping.

STEP 3: Enter Confirmation

The stolen verification PIN is now entered on the second smartphone. As a result, the WhatsApp account has been taken over by you. You can read the WhatsApp messages, which respond to this mobile phone number.

The downside to this trick is that the victim immediately notices the Whatsapp hack as soon as Whatsapp is opened. If the victim goes through the sign-in process again. The attacker loses access to the messages and no Whatsapp messages can be read.

How to Hack Someone's WhatsApp in 2020

A good way to hack a WhatsApp account is to hack whatsapp online. Here you can read WhatsApp messages via a browser and also write. The target user can continue to use his cell phone (works for iOS, Android phone etc) and does not notice the WhatsApp hack.

STEP 1: Access the Cell Phone

In order to be able to read WhatsApp messages by installing software. Access to the unlocked smartphone is required for a short time. In addition, cell phone, a computer or laptop is necessary. On this the Whatsapp messages will be read later.

STEP 2: Access WhatsApp Web

If you have access to the unlocked smartphone, Whatsapp must be started there. The Whatsapp settings include Whatsapp Web . If this is selected, Whatsapp opens a QR code scanner with the hint to open WhatsApp Web in the browser.

If the QR code is scanned in the browser with the smartphone. There is a permanent connection and Whatsapp messages can be read. If you want to hack Whatsapp in this way. You have full access to all incoming messages and you can even write messages yourself.

STEP 3: Read WhatsApp Messages

The target usually sees this Whatsapp hack only when the settings are invoked to Whatsapp Web in the app. Whatsapp messages can be read via the browser. Regardless of whether the smartphone is on home Wi-Fi or on the move. You can also hack group chats admin by just having any of the contact details.

WhatsApp Hack: How to Hack any WhatsApp account

Which is the most popular messaging app globally? Of course, you can use different apps from Android or iOS to send and receive messages. But Whatsapp remains everyone's favorite globally!

Whatsapp is one of the popular apps in the world. There are more than 2 billion active users on Whatsapp, messaging daily with the app. Why do people love WhatsApp? Whatsapp is very convenient and easy to use.

Other messaging apps like Facebook Messenger, still needs a special account to sign up for this app. If you change a new app, you'll need to add another account. This can be stressful, as you have to remember a lot of new passwords and usernames.

HACKER NT

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Exploiting Golang Unsafe Pointers


There are situations when c interacts with golang for example in a library, and its possible to exploit a golang function writing raw memory using an unsafe.Pointer() parameter.

When golang receive a null terminated string on a *C.Char parameter, can be converted to golang s tring with  s2 := C.GoString(s1) we can do string operations with s2 safelly if the null byte is there.

When golang receives a pointer to a buffer on an unsafe.Pointer() and the length of the buffer on a C.int, if the length is not cheated can be converted to a []byte safelly with b := C.GoBytes(buf,sz)

Buuut what happens if golang receives a pointer to a buffer on an unsafe.Pointer() and is an OUT variable? the golang routine has to write on this pointer unsafelly for example we can create a golangs memcpy in the following way:



We convert to uintptr for indexing the pointer and then convert again to pointer casted to a byte pointer dereferenced and every byte is writed in this way.

If b is controlled, the memory can be written and the return pointer of main.main or whatever function can be modified.

https://play.golang.org/p/HppcVpLfuMf


The return addres can be pinpointed, for example 0x41 buffer 0x42 address:



We can reproduce it simulating the buffer from golang in this way:


we can dump the address of a function and redirect the execution to it:


https://play.golang.org/p/7htJHJp8gUJ

In this way it's possible to build a rop chain using golang runtime to unprotect a shellcode.

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