Note: This description of a security analyst’s daily routine is fictitious. However, the osquery examples have been tested and can therefore be used as a template for your own research. 1. Alarm Detection Today started with a high-severity alarm from our Elastic Security system. The alert indicated suspicious activity on host HOST-1234, suggesting potential malware execution. The…
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You weren’t expecting a part three of this series, right? Well honestly, me neither. But after working together with you on the POC where we firstly crawled the NetEye Guide and applied ELSER to the resulting documents, and then we exploited its semantic search capabilities in the NetEye Guide search, we asked ourselves, what if…
Read MoreDo you have a SIEM installation based on Elasticsearch (like the NetEye 4 SIEM Module) and are you sending data to it from your hosts? Then you’ll surely want to know whether your host is actually sending data, or if nothing is coming out at all. For this I made available a simple icinga/nagios plugin…
Read MoreSay you’re using the SIEM Module in NetEye and are deploying the Elasticsearch Agent to your clients. You’d surely like to know if those agents are still sending data and are still connected to the Elastic Fleet server. I had this problem recently and came up with a new monitoring plugin that uses the Kibana-API…
Read MoreThe Fleet Management feature was automatically enabled with NetEye release 4.30, and with the current 4.31 version all the Elastic Stack packages will be upgraded to major version 8. These two milestones will permit us to centrally manage log ingestion using the new Elastic Agents (the evolutions of Beats Agents) and forget all the custom…
Read MoreIntroduction In today’s increasingly complex cybersecurity landscape, it is crucial for organizations to adopt effective solutions to protect their data and digital assets from ever-evolving threats. Two commonly used services in this regard are SOC (Security Operations Center) and MDR (Managed Detection and Response). While both aim to ensure cybersecurity, there are important differences that…
Read MoreEl Proxy helps in compliance with GDPR regulations, which, besides the rest, imposes guarantees on the integrity of data and ensures that the data is kept for no longer than a predefined period of time. El Proxy ensures the integrity of the data by saving the data in El Proxy blockchains. The guarantee that data…
Read MoreBefore deploying El Proxy in production we, the R&D Team, carried out numerous benchmarks and reproduced real life scenarios to ensure that the real-time log signing performed by El Proxy would not represent a bottleneck in environments where logs that must respect the Italian “Garante Privacy” regulations are generated with data rates of around 2,000…
Read MoreOne of the important elements of Cyber Threat Intelligence activity is the verification of IoCs (Indicators of Compromise) that can identify threats that can create an impact on your organization. In parallel to our OSINT and Cyber Threat Intelligence SATAYO platform we have implemented the SATAYO IoC database which currently has about 900,000 elements. Among…
Read MoreSeveral customers have asked us how they can collect DNS logs. In our solution, we proposed a Packetbeat Agent that allows you to collect data and send them to our centralized NetEye SIEM directly, or via a NetEye satellite. The Domain Name System (DNS) provides a hierarchy of names for computers and services on the…
Read MoreIn my previous post I showed you how to make your own alerts on NetEye SIEM by using the Elastic Watcher and Alerts and Actions features. But if we work in production environments, what we really need is an alert that can go directly to NetEye’s Monitoring Overview. How can we manage SIEM alerts and…
Read MoreThe main goal of a monitoring system like NetEye is to alert and notify you when something noteworthy happens in your environment. All the logs coming in to NetEye SIEM can be analyzed, and could raise one or more alerts in the Elastic Stack, such as detection, machine learning anomalies, etc. How can you make…
Read MoreIs it possible to add Geo IP information automatically to my events even if it’s not present in the original log? How can I automatically decode a URL to dissect all its components? How can I convert a human readable byte value (e.g., 1KB) to its value in bytes (e.g., 1024) so I can use…
Read MoreNetEye SIEM is a very powerful tool that allows you to ingest logs from many different sources. However, by default it does not ingest the ssh-login attempts on the NetEye Servers themselves, nor does it check the integrity of important configuration files. In this blog post I will describe a procedure to configure an Auditbeat…
Read MoreIn order to protect your business against cyber attacks you need to both harden your systems and promptly detect suspicious activities in your infrastructure. Sigma is an open source project which defines specifications for a standard signature format that allows you to describe relevant log events for security purposes. The Sigma rules language is intended…
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