Stealing NTLM hash with BadPDF - A Technique to bypass AV and Endpoint protections

On April 26, 2018 checkpoint research team discovered the malicious exploit which can be embedded in PDF files to send further to the victims. After opening the malicious PDF file, victim’s machine will leak NTLM hash via SMB protocol.

I created the malicious PDF and tested on my personal machine which was fully equipped with cutting edge end-point protection technology. It leaked NTLM hash to the attacker. If SMB protocol is opened on victim’s machine, it will leak the hash through it.

I thought disabling SMB protocol will patch this issue. So I turned off the SMB protocol on the machine, downloaded the PDF via the web browser and opened it through the Chrome browser only. In that case, the browser made an HTTP request to attacker’s machine for leaking the NTLM hash value.

Android OS/Phone Security Hardening Guide

In this article, I am going to list down all security features which can be hardened for any Android phone operating system in order to improve the security of user phone. I believe that there are plenty of articles available online for the same, however, they are missing one or other thing. Hence, my try here is to list down every possible feature that we can use to improve Android phone security.

Datasploit usage using docker container - OSINT

Datasploit performs automated OSINT on a domain / email / username / IP and find out relevant information from different sources. Easy to contribute OSINT Framework. Code for Banner, Main and Output function. Datasploit automatically do rest of the things for you. Useful for Pen-testers, Bug Bounty Hunters, Cyber Investigators, Product companies, Security Engineers, etc.Collaborate the results, show them in a consolidated manner. Tries to find out credentials, api-keys, tokens, sub-domains, domain history, legacy portals, usernames, dumped accounts, etc. related to the target. Can be used as library, automated scripts or standalone scripts.Can generate lists which can be feeded to active scan tools.Generates HTML, along with text files.

Less perks and more pitfalls of cryptocurrency

I was always wondering to invest or not to invest in cryptocurrency. I started looking all articles that exist on the internet. Majority of articles were reflecting the same in terms of advantages and disadvantages. However, after reviewing almost 50 different articles, what I have analyzed is there are more pitfalls with fewer perks.

So I gathered all pitfalls of bitcoin to cover them in the single article. Those are as follows. Thanks to the industry contributors.