Showing posts with label Tips n Tricks. Show all posts
Showing posts with label Tips n Tricks. Show all posts

Tuesday, August 22, 2017

Are TOR Hidden Services really hidden? Demystifying HS Directory surveillance by injecting Decoys inside TOR!


Recently, I spoke at the C0C0N X Security & Hacking Conference 2017 held at Le Meridien, Kochi. The talk focussed on the 'Hiddenness' of TOR Hidden Services specific to the detection of HS Directory Surveillance by injecting Decoys or Honeypots inside the TOR network. Here’s the digest of the presentation.


What is TOR?
The Onion Router – Gateway to Anonymity
How TOR works?
Establishing the Circuit
Directory Authorities - The Gatekeepers of TOR

Introduction to TOR Hidden Services (HS)
Why run a TOR HS? - Sneak peek into HS features
How TOR HS works? - HS Rendezvous Protocol

Analysis of hiddenness of TOR HSs 
Research Hypothesis - Are TOR HS really Hidden?
The HS Honeypot Approach
Setting up the Onion Decoy Project

Live Demo
Hosting Tor Hidden Service in seconds with Docker Containers
How to setup Honeypots (aka Onion Decoys) inside TOR Network
Live probing of Onion Decoys to detect intrusions by attackers

Results of the Onion Decoy Experiment 
Private Hidden Services are not really hidden

Conclusion & Takeaways
Everything can be a Honeypot, if you don’t know it fully
The more you hide, The more somebody wants to know why



The Source Code of the Onion Decoy Project is available at https://github.com/OnionDecoy


Below is the presentation for the delivered talk.

Wednesday, October 14, 2015

Installing Mac OS X El Capitan 10.10 on Vmware ESXi 6.0


After a long struggle of 48 hours, I could finally able to install the Apple's latest Mac OS X El Capitan v10.11  on a Virtual Machine (VM). The experiment was conducted on Vmware ESXi 6.0 virtualization platform running over physical IBM Server X3650 M3.


Following are the installation steps:

Setting up ESXi for running Apple Mac OS X 

Vmware ESXi 6.0 doesn’t support OS X out of the box.
  1. So, the first thing you need to do is to customise the hypervisor layer by executing

Friday, April 17, 2015

Signing Java .jar Files with CLI Command Jarsigner using Hardware Token in Windows

How to Configure Java JDK to Use the eToken

  1. Download the JDK from Oracle.com.
    Note:    Even if you are using a 64-bit version of Windows, the 32-bit JDK is required.
  2. Open a text editor (such as Notepad) and do the following:
    1. Copy and paste the following 2 lines into the text (Notepad) document:
      name=eToken
      library=c:\WINDOWS\system32\eTPKCS11.dll
    2. Save this file as eToken.cfg in the appropriate directory for your version of the JDK, for example:
      • JDK 1.8
        C:\Program Files (x86)\Java\jdk1.8.0_20\bin
      Note:    If you are running a 32-bit version of Windows, the Java JDK is installed in C:\Program Files\Java\....

Saturday, January 21, 2012

3 Ways to URL Redirection from HTML page

Sometimes, it's  useful & inevitable to redirect the End-user from a web page to a completely different URL automatically. So in this tutorial I'll be presenting the 3 most efficient ways to URL Redirection from a HTML webpage.

1. Using 'meta' refresh tag

Thursday, January 12, 2012

Android Offline Installation Procedure (Windows)


In this tutorial, I'll show the 'Android Offline Installation Procedure' for computers on a Windows Platform which do not have a direct Internet Connection.

1. Install Android SDK Manager, Revision 16.
  - The Android SDK Tools Package is the only package that gets installed.


2. Close the Android SDK Manager & Go to the SDK Installation folder "C:\Program Files\Android\android-sdk".

Sunday, July 10, 2011

Get Google+ Invitation now....

Is it that you just can not resist the urge to use the brand new Social Networking gaint Google+ by Google? So here comes the end of your awaitment. Get Started with the Amazing experience of Circles, Hangouts and Sparks of Google+. Just provide your Google email-id in our wall and get the invitation in seconds.

Saturday, October 30, 2010

Get SMS alerts of your Emails on your cellphone in real-time


I recently discovered a trick used by some on how to get message alerts of our emails on your mobile phones & that too in real-time(soon as they happen), and also without any rentals to cellphone operators.

Sunday, August 22, 2010

KeyPass Password Manager - Control your passwords


KeyPass Password Safe
Most of the people just use the same password for all host of services the World Wide Web(www) offers including forums, email sevices, social networking sites, image hosting services etc. This is certainly a very 'risky' thing to do, coz if one account gets compromised, or you are mislead into signing up on a bogus site(Phishing), all your accounts may get hacked.

So, as a mordern day user, one has to keep track of more than one password for different websites which can quickly get very complicated & hard to manage. Hence, we need a password 'Safe Room' such as KeyPass Pasword Manager to keep all password secure & available at any time.

Thursday, August 5, 2010

Hard Disk Maintenance - Windows Tools, Don't ignore


Don't ignore your Hard Disk maintenance.
Inner view of a Hard disk
Are you really ignoring? If yes, then the life span of your hard disk is decreasing each day, & sooner you'll be facing the blue problem of Hard Disk Crash which may lead to a nightmare if worse conditions so prevail that Data Recovery becomes impossible even with Recovery tools like Pandora Recovery.

Hence,  there's a need of some routine maintenance of hard disks for fast, smooth, & healthy performance. The heuristic part is that every OS offers maintenance tools, but a handful of Enthusiasts use them.

Here, I'll discuss about 2 predefined tools in Windows OS viz.

Wednesday, August 4, 2010

Blue print- Facebook Mafia War

Recently, I viewed a very good Blue print of Cheats & Tricks on the worldwide popular Facebook game called Mafia War.

What you can do from it:-
  • Learn Top Mistakes
  • Legally Upgrade Mafia to over 500+ players (within 7 days)
  • Get the rarest, most powerful Weapons for your Badass Gang
  • Force the best players beg you to let them join your Mafia
  • Fight the China vs. Taiwan Way
  • How to never lose a fight or get robbed again
  • Stockpile your Godfather points, regardless of your level
  • Discover the hidden secrets & loopholes
  • Master every level at top speed
  • And much more....

Tuesday, August 3, 2010

Recover Permanently Deleted Data (Shift+Del or Empty Recycle Bin)


Today I will share a trick for newbies on how to recover lost data, deleted permanently using the Shift+Del scheme or Empty Recycle Bin scheme in Windows.
Well, when you delete files like this, the files never get Permanently deleted (though Windows says so, Misnomer). It still exists on the hard disk. This is termed as 'Data Remanance'. The file names only are deleted from the system directory. Hence, you can use a wonderful freeware tool called

Thursday, July 29, 2010

How to Resize a Hard Disk Partition


Windows doesn't allow you to resize or partition a drive without losing data. Fortunately, there is an Award-winning Freeware application called EASEUS Partition Master that allows you to resize, reorder, move & basically manipulate the free space in a partition, that too quite easily with the user-friendly graphical interface (GUI).

Suppose you have enough unused free space inside a previously created partition (say D:\ drive) but you are running out of free space in another partition (say E:\ drive). Now, if you want to shift or move that free space from drive D:\ to E:\ or you want to make a new drive (say F:\) for that unused free space of D:\ drive, then you surely need this software.

Monday, July 26, 2010

How to Install Windows 7 from USB Drive

Bootable Non-Live way - Only for installation.

Here, I give a short & simple way to install Windows 7 into your system from a USB drive.The benefit you get with this native support for USB installation is that you can easily install Windows 7 on ultra portable machines & netbooks which don't have optical drives and at the same time, the speed you get while installing from a USB drive is much faster than installing it from an optical drive. So why not give it a try.

Follow the following steps to start off:

Saturday, July 24, 2010

Multiple File Selection using Checkboxes in Windows 7


Windows 7 logo
Today I will share a very useful trick to tweak the Multiple File Selection procedure in Windows 7. Whenever you need to select multiple files in Windows platform, you have to keep the [Ctrl] key pressed while as you click on different filenames. Isn't it?

But, how many times has it happened that you forgot to press the [Ctrl] key before selecting the other file & all of your previous selection was lost? It's very irritating I guess, & that too when dealing with large number of files.

So, now as a rescue, Windows 7 comes with Checkboxes which allows you to select multiple files without the need to hold down the [Ctrl] key everytime.

Just follow the simple steps

Thursday, July 22, 2010

How to type the new Indian Currency Rupee Symbol from your keyboard


Recently, India released the new Rupee symbol & I think each one of us Indians are excited and
curious to know how to use this new symbol in our Electronic life. Today, here I will show you a unique way on how to type this new Indian Currency Symbol using your keyboard while from a laptop or a desktop. So you don't have to wait for a new standard Indian keyboard.

A Mangalore based company Foradian Technologies Pvt Ltd. has introduced a new font called the 'Rupee_Foradian' that allows you to type the new symbol in your computer.

Just follow the simple steps below on how to do it:

Remote Desktop Connection to Abhinav's Mac On Cloud.