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RESOURCE · 23/11/2024

A Hacker's Arsenal

Exploring the tools, techniques and tactics behind a hacker's ability to stay anonymous and undetected - An ethical perspective

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A Hacker's Arsenal
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How the Heck Do Hackers Stay Undetected for So Long?

This blog dives into how hackers manage to stay under the radar, exploring the tools and techniques they use to stay anonymous.

1. OpSec

The first step to staying anonymous is all about physical security. Operational security (OpSec) is a process of preventing sensitive information from slipping into the wrong hands. Hackers, like anyone else concerned with security, have to think like their enemies—identifying potential leaks and vulnerabilities.

OpSec is widely used by the military and competitive companies to protect critical data. For hackers, however, it’s non-negotiable. Oversharing, even accidentally, can blow their cover. For instance, bragging about illegal accomplishments on LinkedIn would be a very bad idea.

Take Ross Ulbricht, for example—the creator of Silk Road, a dark market on the dark web. How did he get caught? While investigators worked to infiltrate the dark web, it was his poor OpSec that ultimately led to his arrest. He used the alias 'Dread Pirate Roberts', which was tied back to a forum post where he’d revealed his email address. Investigators noticed his chat activity lined up with Pacific Time, helping them narrow down his location.

2. The Hacking Machine

Hacking on your personal machine isn’t really a great idea. First off, Windows doesn’t have the proper tools for hacking, and being a product of Big Tech, it’s not exactly the most trusted option for anonymity. Enter Linux—an open-source operating system that hackers swear by.

There are several Linux-based hacking distributions like Kali Linux and Parrot OS. But here’s the thing—it’s risky to boot these on your primary PC. What if you accidentally download malware that takes down your entire system? Rookie mistake.

That’s where virtual machines (VMs) come in. They give you a contained, virtual environment for testing and hacking, so even if something goes catastrophically wrong, your primary system remains safe. You can just reset the VM and start fresh.

For next-level anonymity, consider live operating systems. These run directly from a USB drive without leaving any permanent traces on your hardware—perfect for keeping your activities under wraps.

Tails OS is a prime example:
Tails (short for The Amnesic Incognito Live System) is a privacy-focused, Debian-based Linux distribution. It’s designed to ensure complete anonymity and security. Here’s how it works:

  • Statelessness: It doesn’t save data to your hard drive.
  • Automatic Tor routing: All internet traffic is routed through Tor.
  • Encryption tools: Protects your files and communications.
  • Hard disk avoidance: It uses only your USB drive and system memory.

To use Tails:

  1. Download the ISO file from the official website.
  2. Use a tool like Balena Etcher to burn the ISO to a USB drive.
  3. Adjust your BIOS settings to boot from USB.

Once booted, you’ll have Snowden-level security. Do your work, shut it down, and voila—all traces are gone.

Read about Edward Snowden

3. VPN and MAC Changers

IP addresses and MAC addresses are like digital fingerprints—they’re used to identify your device on a network. Here is a breakdown:

VPNs

Your IP address is how the internet knows where to send the data packets that are meant for you. But here's the catch — your IP can also reveal your approximate location to every website you visit. Hackers, obviously, can't afford to have their location traced.

VPNs (Virtual Private Networks) create an encrypted "tunnel" for your internet connection, masking your IP address and providing some much-needed anonymity.

⚠️ But beware! Using a VPN means trusting it as an intermediary for all your traffic. If a VPN logs your data, it can sell it to the highest bidder—or hand it over to authorities (Oh no!!!) . Always choose trusted providers like Proton VPN or Surfshark, which have a no-log policy.

MAC Changers

Your MAC (Media Access Control) address is hardwired into your device. Think of it as your device's unique ID on the network.

Format:
XX:XX:XX:XX:XX:XX
The first three pairs identify the manufacturer, and the last three are unique to your device.

To check your MAC address:

ifconfig eth0  

While MAC addresses are "burned in," they can still be spoofed. Hackers—or even privacy-conscious users—can change their MAC to randomize it or mimic another device.

Command for randomizing on Kali Linux:

macchanger -r eth0  

Why Use It?

MAC spoofing helps bypass network restrictions, evade tracking tools, or even get around MAC address bans. Ethical use? Sure, but it’s a favorite trick in the hacker playbook for staying stealthy.

4. Tools and Examples

Tor Browser

The Tor Browser uses "onion routing" to anonymize your browsing. Your connection passes through several nodes, ensuring privacy. It also grants access to .onion sites—part of the dark web.

How It Works:

  1. Entry Node: Tor connects to an entry node that decrypts the first encryption layer, revealing the middle node.
  2. Middle Node: The middle node decrypts the next layer and forwards the request.
  3. Exit Node: The exit node decrypts the final layer and sends the request to the destination server.

⚠️ Warning: Malicious actors can operate nodes to monitor traffic. Use best practices, like combining Tor with Tails OS or a virtual machine for added security.

ProxyChains

ProxyChains reroute your internet traffic through multiple proxies to mask your origin.

SOCKS5 Proxy

SOCKS5 is a proxy protocol that routes traffic through a remote server before reaching its destination. It supports UDP, IPv6, and can bypass firewalls.

  • Look up free SOCKS5 proxies and add them to your configuration file:
    sudo nano /etc/proxychains4.conf  
    
  • Example Configuration:
    socks5 127.0.0.1 9050  
    
    (Choose proxies from privacy-focused countries like the Netherlands, Russia, or Germany.)
  • Example use:
proxychains firefox www.duckduckgo.com

Practical Use Case

Combine Tor, VPN, and ProxyChains for a multi-layered approach to anonymity. This setup ensures your origin is nearly impossible to trace.

⚠️ Note: This process can be slow due to multiple routing layers. Patience is crucial!

UVCE,
K. R Circle,
Bengaluru 01