Thursday, March 28, 2024

Masscan – World’s Fastest Scanner – Scan the Entire Internet in Under 6 Minutes

Masscan – Worlds fastest scanner can scan the entire Internet in under 6 minutes, transmitting 10 million packets per second. 

Masscan is an Internet-scale port scanner, useful for large-scale surveys of the Internet, or of internal networks.

While the default transmit rate is only 100 packets/second, it can optionally go as fast as 25 million packets/second, a rate sufficient to scan the Internet in 3 minutes for one port.

It produces results similar to Nmap, the most famous port scanner. Internally, it operates more like scanrand, unicornscan, and ZMap, using asynchronous transmission.

The major difference is that it’s faster than these other scanners. In addition, it’s more flexible, allowing arbitrary address ranges and port ranges. In this Kali Linux tutorial, we introduce you to Massscan.

Also Read How to perform Information Gathering in Kali using NMAP – A Detailed Explanation

NOTE: It uses a custom TCP/IP stack. Anything other than simple port scans will cause conflict with the local TCP/IP stack. This means you need to either use the -S option to use a separate IP address or configure your operating system to firewall the ports that Masscan uses.

Downloading And Building Masscan

On Debian/Ubuntu:

$ sudo apt-get install git gcc make libpcap-dev
$ git clone https://github.com/robertdavidgraham/masscan
$ cd masscan
$ make

The source consists of a lot of small files, so building goes a lot faster by using the multi-threaded build:

$ make -j

Here is how you might use it:

masscan 10.0.0.0/8 -p443 -S 10.1.2.53 --rate 100000 --heartbleed

This command explained:

  • 10.0.0.0/8 = the network you want to scan, which is all 10. x.x.x
  • -p443 = the port(s) you want to scan, in this case, the ones assigned to SSL
  • -S 10.1.2.53 = an otherwise unused local IP address to scan from
  • –rate 100000 = 100-packets/second, which scans the entire Class A range in a few minutes
  • –heartbleed = the new option that reconfigures masscan to look for this vulnerability

The output on the command line will look like the following:

Discovered open port 443/tcp on 10.20.30.143
Banner on port 443/tcp on 10.20.30.143: [ssl] cipher:0xc014
Banner on port 443/tcp on 10.20.30.143: [vuln] SSL[heartbeat] SSL[HEARTBLEED]


masscan-new

You can follow us on Linkedin, Twitter, and Facebook for daily Cybersecurity updates also you can take the Best Cybersecurity courses online to keep yourself self-updated.

Also, Read

10 Best Vulnerability Scanner Tools For Penetration Testing – 2023

Top 10 Open Port Scanner and Port Checker Tools for 2023

hping3 – Network Scanning Tool – Packet Generator

Website

Latest articles

Hackers Actively Exploiting Ray AI Framework Flaw to Hack Thousands of Servers

A critical vulnerability in Ray, an open-source AI framework that is widely utilized across...

Chinese Hackers Attacking Southeast Asian Nations With Malware Packages

Cybersecurity researchers at Unit 42 have uncovered a sophisticated cyberespionage campaign orchestrated by two...

CISA Warns of Hackers Exploiting Microsoft SharePoint Server Vulnerability

Cybersecurity and Infrastructure Security Agency (CISA) has warned about a critical vulnerability in Microsoft...

Microsoft Expands Edge Bounty Program to Include WebView2!

Microsoft announced that Microsoft Edge WebView2 eligibility and specific out-of-scope information are now included...

Beware of Free Android VPN Apps that Turn Your Device into Proxies

Cybersecurity experts have uncovered a cluster of Android VPN applications that covertly transform user...

ZENHAMMER – First Rowhammer Attack Impacting Zen-based AMD Platforms

Despite AMD's growing market share with Zen CPUs, Rowhammer attacks were absent due to...

Airbus to Acquire INFODAS to Strengthen its Cybersecurity Portfolio

Airbus Defence and Space plans to acquire INFODAS, a leading cybersecurity and IT solutions...
Balaji
Balaji
BALAJI is an Ex-Security Researcher (Threat Research Labs) at Comodo Cybersecurity. Editor-in-Chief & Co-Founder - Cyber Security News & GBHackers On Security.

Mitigating Vulnerability Types & 0-day Threats

Mitigating Vulnerability & 0-day Threats

Alert Fatigue that helps no one as security teams need to triage 100s of vulnerabilities.

  • The problem of vulnerability fatigue today
  • Difference between CVSS-specific vulnerability vs risk-based vulnerability
  • Evaluating vulnerabilities based on the business impact/risk
  • Automation to reduce alert fatigue and enhance security posture significantly

Related Articles