Detect attacks on your network with Maltrail

Sentry

© Photo by Lance Anderson on Unsplash

© Photo by Lance Anderson on Unsplash

Article from Issue 258/2022
Author(s):

Maltrail is a lightweight analysis tool that examines network traffic and raises the alarm if it detects suspicious access or dubious name resolution.

Hundreds of security products vie for the favor of users on the Internet, promising the highest levels of protection. Along with the numerous commercial offerings available for a monthly rate are some free open-source products that aim to expand the basic protection that might already be in place.

Maltrail [1] is an open source tool that lays in wait on the network and sounds the alarm if a package appears suspicious. It reports its findings but does not intervene. The way Maltrail works is somewhere between an intrusion detection system and a malware scanner. Maltrail uses public blacklists to examine the packages. In Maltrail jargon, the description of a suspicious IP address, web URL, or domain is known as a trail. Feeds are lists of known trails that the Maltrail community keeps up to date.

Structure

Maltrail consists of two components. The sensor component sniffs the packets, and the server component collects the alarms from the sensor. In a perfect setup, the sensor component resides on a router or firewall, because these devices get to see the data streams of all network participants. In Figure 1, the sensor resides on a firewall and therefore has access to all the packets passing through. The position of the server does not matter much as long as the sensor and the admin can access it.

[...]

Use Express-Checkout link below to read the full article (PDF).

Buy this article as PDF

Express-Checkout as PDF
Price $2.95
(incl. VAT)

Buy Linux Magazine

SINGLE ISSUES
 
SUBSCRIPTIONS
 
TABLET & SMARTPHONE APPS
Get it on Google Play

US / Canada

Get it on Google Play

UK / Australia

Related content

  • Instrumented Garden

    Place long-range wireless sensors in a garden and keep track of ambient conditions with gauges and time-based graphs.

  • Packet Telemetry with Host-INT

    Inband Network Telemetry and Host-INT can provide valuable insights on network performance – including information on latency and packet drops.

  • WiFi Thermo-Hygrometer

    A WiFi sensor monitors indoor humidity and temperature and a Node-RED dashboard reports the results, helping you to maintain a pleasant environment.

  • ARP Spoofing

    Any user on a LAN can sniff and manipulate local traffic. ARP spoofing and poisoning techniques give an attacker an easy way in.

  • Bpytop

    Linux users have many options for monitoring system resources, but bpytop, a new Python port of bashtop, more than stands out from the crowd.

comments powered by Disqus

Direct Download

Read full article as PDF:

Price $2.95

News