One of the main goals of SIGMA as a project and SIGMA rules specifically has always been to reduce the gap that existed in the detection rules space. As maintainers of the SIGMA rule repository we're always striving for reducing that gap and making robust and...
We are proud to announce the integration of our private Sigma rule set in Valhalla. This rule set is used in our scanner THOR and endpoint agent Aurora. The rule set currently contains more than 250 quality-tested and generic rules written by Nextron's detection...
We are excited to announce that the upcoming version 1.11 our tool, THOR Util, now has the capability to convert log output files from both the default and JSON format into CSV files. This new feature will make it easier for users to analyze their log data and extract...
More and more often, adversaries target and exploit Internet-facing appliances or devices with exotic or restricted operating systems. Users ask if there is a way to run a compromise assessment scan on these systems with the YARA rules used in THOR. Following up on...
We're glad to announce a new feature that allows users to enrich events generated by THOR with information from Virustotal. The feature is available in the full THOR v10.7 TechPreview and THOR Lite. It can be used in any scan mode: live endpoint scanning, lab...
We've updated our Antivirus Event Analysis Cheat Sheet to version 1.12.0. It includes updates in several sections New signatures for PUA like FRP and Adfind Signature strings have been sorted alphabetically (not shown in the screenshot below) You can download the new...
We've updated our Antivirus Event Analysis Cheat Sheet to version 1.11.0. It includes updates in several sections add special identifiers for other hack tools and ransomware (sync with Sigma rule changes provided by Arnim Rupp in PR #3919 and #3924) You can download...
In a report published on the 20th of December CrowdStrike published a report of a new technique exploiting the Microsoft Exchange vulnerability called ProxyNotShell. The called the new technique OWASSRF as it uses Outlook Web Access, CVE-2022-41080 and CVE-2022-41082...
Nextron Systems has always supported the Sigma project, investing hundreds of work hours into creating and maintaining the community rules shared in the public Sigma rule repository. Apart from the community support, we've created a set of internal detection rules for...
We've just released the new ASGARD Management Center version 2.14 with important new features. This blog posts lists the most important changes in dedicated chapters. The whole change log can be found at the end of the article. Broker Network The Broker Network allows...
Our partner Mjolnir Security offers a training named “Blue Team Incident Response Training” from 19th of September to 23rd of September. It’s 3,5 hours a day, starting 4:00 pm and finishing 7:30 pm Eastern time. Each session will be recorded, so you'll also be able to...
We've updated our Antivirus Event Analysis Cheat Sheet to version 1.10.0. It includes updates in several sections add special identifiers for Sliver and Brute Ratel C4 framework implants many new tags for Virustotal assessments You can download the new version here....