OSSIM leverages the power of the AlienVault Open Threat Exchange by allowing users to both contribute and receive real-time information about malicious hosts. AlienVault OSSIM is an open source Security Information and Event Management (SIEM) product. It is a unified platform providing: Asset discovery Vulnerability assessment Intrusion detection Behavioral monitoring SIEM OSSIM provides the basis for AlienVault's proprietary Unified Security…
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Microsoft Sentinel
Score 8.4 out of 10
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Microsoft Sentinel (formerly Azure Sentinel) is designed as a birds-eye view across the enterprise. It is presented as a security information and event management (SIEM) solution for proactive threat detection, investigation, and response.
Originally my organization leveraged alien value due to the lower cost of entry and ability to manage it as a service provider. Unfortunately, after several years of working with this tool, it became unwieldy to use as it felt that almost every useful report had to be created …
If this is your first experience with a SIEM, this one can get you started. Take the time to learn the ins and outs of the product and you'll most likely be satisfied with it if your company is an SMB. If you need compliance reports, OSSIM is too small for you, you'll need to go with USM or USM Anywhere.
Sentinel is the best "cloud-native" in the market yet, so if the organization has a cloud presence (which almost everyone has) then Sentinel is the right choice for having a single pane of glass for all your security monitoring needs. Sentinel is a very good tool for log analysis and event management purposes as well. With KQL and ASIM parsers, organizations can retrieve invaluable insights even from the most complex data. And of course, Sentinel is a great choice for automating the incident response process to a very good extent.
Asset discovery. Once installed in a centric, network-accessible server, OSSIM can poll all your endpoints with common protocols (SSH, SNMP, WMI) to detect and discover site-wide assets to monitor. You only need to group them by your own criteria once added to the product.
SIEM Event Correlation. You can define quite complex correlation rules to detect possible suspicious or malicious actions or attempts in your network, in order to categorize them as real threats or as false positives, thus streamlining your risk assessment and management.
Ease of installation. The entire AlienVault OSSIM is self-contained in an ISO file, which can be burned into a DVD or just mounted in your server of choice (physical or virtual) for deployment. The installation process is automated and quote verbosed, with options for static IP, email messaging and others.
Ease of access. Being AlienVault OSSIM a self-contained appliance, it can be accessed via web by any device that supports a web browser, being that desktops, workstation, mobile devices, etc. The OSSIM dashboard and other features are automatically rearranged to adapt to the particular device being in use.
It takes some time to learn how to use and install it properly, and it does not connect effectively with external PaaS systems such as Salesforce CRM, Salesforce Commerce Cloud, and so on.
Microsoft can simplify the display of the logs to make them easier to study, and the user interface occasionally delays, which can also be enhanced.
AlienVault OSSIM is far easy to use and manage - provided you know what you're doing. As any SIEM application, there is some background knowledge required in order to take advantage of the product's functionalities, such as the log correlation and analysis. Other than that, the application is quite usable and robust.
The Microsoft Azure Sentinel solution is very good and even better if you use Azure. It's easy to implement and learn how to use the tool with an intuitive and simple interface. New updates are happening to always bring new news and improve the experience and usability. The solution brings reliability as it is from a very reliable manufacturer.
Everything is done through MSSP and installation pro services. Once those hours are burned up, then you're on your own without a lot of help. Typically the pro services hours aren't enough to get past 60 days and MSSP are hit and miss. We had a miss for installation helpers.
Originally my organization leveraged alien value due to the lower cost of entry and ability to manage it as a service provider. Unfortunately, after several years of working with this tool, it became unwieldy to use as it felt that almost every useful report had to be created by hand. As other tools have come out with the ability to do automated responses such as Stellar Data processor, we have begun to evaluate alternatives.
The key advantage of using Sentinel lies in Microsoft already being a renowned name in cloud services. Hence, the Collection of data at the cloud scale across all users, devices, applications, and infrastructure, both on-premises and especially in the MS Cloud, is super easy. Additionally, leveraging Threat Intel from Microsoft itself gives a sense of security, given their years of experience in the collection of intel. The AI and Machine learning features provided by MS is one of the finest.
Microsoft Sentinel is a good investment, especially when sided with other solutions such as Microsoft 365 Defender, as it provides 360° protection on every level of the infrastructure.
When deployed on infrastructures that have never had an SIEM, Microsoft Sentinel helps to assess vulnerabilities and misconfigurations.
As with any other SIEM, Microsoft Sentinel basically eliminates the need to put effort into every single platform (like EDR, NDR, XDR) and converge that effort on a single product that correlates and orchestrates the rest.
