BeginnerMaltego

How to Install Maltego on Kali Linux, Windows & macOS

Step-by-step installation guide for Maltego on all major platforms. Includes Java setup, first launch configuration, account creation, and transform setup.

#maltego#installation#kali-linux#windows#macos#setup#java

# How to Install Maltego on Kali Linux, Windows & macOS

Maltego is a Java-based application that runs on all major operating systems. This guide provides detailed installation instructions for Kali Linux, Windows, and macOS, along with post-installation configuration to get you investigating in minutes.

Prerequisites

Before installing Maltego, ensure your system meets these requirements:

System Requirements

| Component | Minimum | Recommended |

|-----------|---------|-------------|

| RAM | 4 GB | 8 GB+ |

| Disk Space | 2 GB free | 10 GB+ free |

| Java | JDK 11 or later | JDK 17 LTS |

| CPU | Dual-core | Quad-core+ |

| Display | 1280x720 | 1920x1080+ |

| Internet | Required for transforms | Broadband recommended |

Java Installation

Maltego requires Java to run. The recommended version is JDK 17 LTS.

Kali Linux

# Update package lists
sudo apt update

# Install JDK 17
sudo apt install -y openjdk-17-jdk

# Verify installation
java -version

# Set JAVA_HOME
echo 'export JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64' >> ~/.bashrc
source ~/.bashrc

Windows

Download JDK 17 from [Adoptium](https://adoptium.net) or [Oracle](https://www.oracle.com/java/technologies/downloads/)

Run the installer

Follow the installation wizard

Ensure Java is added to PATH

Verify by opening Command Prompt and running:

java -version

macOS

# Using Homebrew (recommended)
brew install openjdk@17

# Set JAVA_HOME
echo 'export JAVA_HOME=/opt/homebrew/opt/openjdk@17' >> ~/.zshrc
source ~/.zshrc

# Or download from Adoptium
# Download the .pkg installer and run it

Installation on Kali Linux

Kali Linux often comes with Maltego pre-installed. If not, follow these steps.

Method 1: Using apt (Recommended)

# Update package lists
sudo apt update

# Install Maltego
sudo apt install -y maltego

# Launch Maltego
maltego

Method 2: Manual Download

Visit [maltego.com](https://www.maltego.com)

Download the Linux .deb package

Install with: `sudo dpkg -i maltego_*.deb`

Fix dependencies: `sudo apt install -f`

Installation on Windows

Download the Windows installer from [maltego.com](https://www.maltego.com)

Run the .msi installer

Follow the installation wizard

Choose installation directory

Complete the installation

Launch Maltego from Start Menu

Installation on macOS

Download the macOS .dmg file from [maltego.com](https://www.maltego.com)

Open the .dmg file

Drag Maltego to Applications folder

Launch Maltego from Applications

If blocked by Gatekeeper: System Preferences > Security & Privacy > Open Anyway

First Launch Configuration

Account Setup

Launch Maltego

Select "Maltego Community Edition" (free) or enter license key

Create an account at maltego.com if you don't have one

Log in with your credentials

Accept the terms of service

Transform Configuration

Go to Transform Hub (Window > Transform Hub)

Install essential transforms:

- DNS (Domain Name System)

- WHOIS

- IP Address

- Email Address

Configure API keys for paid transforms if needed

Test transforms by running a simple domain investigation

Performance Tuning

# Edit Maltego memory settings (if needed)
# Find maltego.conf or bin/maltego
# Increase Java heap size:
# -Xmx4g (for 4GB RAM)
# -Xmx8g (for 8GB+ RAM)

Verification

Test your installation:

Create a new graph

Drag a Domain entity onto the graph

Right-click > Run Transform > To DNS Name

Verify results appear connected to the domain

Check Transform Hub for available transforms

Common Installation Issues

| Issue | Cause | Solution |

|-------|-------|----------|

| Java not found | JAVA_HOME not set | Set JAVA_HOME environment variable |

| Maltego won't start | Insufficient memory | Increase Java heap size in config |

| Transforms fail | No internet or API keys | Check connectivity and API key configuration |

| Gatekeeper blocks (macOS) | unsigned app | Allow in System Preferences > Security |

| Blank screen | Java version mismatch | Ensure JDK 17 is installed and JAVA_HOME points to it |

Getting Started with Maltego: Complete Beginner Guide

Maltego Community Edition: Free OSINT Tool Guide

Maltego Transforms Explained: How the Transform Engine Works

Frequently Asked Questions

What are the system requirements for Maltego?

Maltego requires at minimum 4 GB RAM, 2 GB free disk space, JDK 11 or later (JDK 17 recommended), dual-core CPU, and 1280x720 display. For best performance, use 8+ GB RAM, 10+ GB disk, quad-core CPU, and broadband internet for transforms.

How do I install Maltego on Kali Linux?

Run `sudo apt update && sudo apt install maltego` to install from Kali's repositories. Kali often comes with Maltego pre-installed. Alternatively, download the .deb package from maltego.com and install with `sudo dpkg -i maltego_*.deb`.

Do I need Java to run Maltego?

Yes, Maltego is a Java-based application requiring JDK 11 or later. JDK 17 LTS is recommended. Install it with `sudo apt install openjdk-17-jdk` on Linux, download from Adoptium for Windows, or use Homebrew on macOS.

How do I set JAVA_HOME on Linux?

Add `export JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64` to your ~/.bashrc file, then run `source ~/.bashrc`. Verify with `echo $JAVA_HOME` and `java -version` to confirm the correct path.

Can I install Maltego on Windows?

Yes, download the .msi installer from maltego.com, run it, and follow the wizard. Ensure Java JDK 17 is installed first and added to your system PATH so Maltego can find it during startup.

How do I install Maltego on macOS?

Download the .dmg file from maltego.com, open it, and drag Maltego to your Applications folder. If Gatekeeper blocks it, go to System Preferences > Security & Privacy and click Open Anyway. Install JDK 17 via Homebrew or Adoptium first.

Why won't Maltego start after installation?

Common causes include missing Java (install JDK 17), JAVA_HOME not configured, insufficient memory, or Java version mismatch. Verify Java is installed with `java -version`, set JAVA_HOME correctly, and increase heap size if needed.

How do I configure transforms after installation?

Go to Window > Transform Hub in Maltego, install essential transforms (DNS, WHOIS, IP Address, Email), and configure API keys for paid transforms. Test by creating a graph with a Domain entity and running transforms.

How do I increase Maltego's memory allocation?

Edit the Maltego configuration file or bin/maltego script and change the Java heap size parameter to `-Xmx4g` for 4GB RAM or `-Xmx8g` for 8GB+ RAM. This prevents out-of-memory errors during large investigations.

Is Maltego pre-installed on Kali Linux?

Kali Linux often includes Maltego in its default installation. Check by running `maltego` in a terminal. If not installed, use `sudo apt install maltego` to add it from Kali's package repositories.