Discover how to safeguard your business from the ongoing Microsoft Exchange vulnerability crisis highlighted by the German Federal Office for Information Security (BSI). Learn about critical warnings, the importance of patching, and how automated compromise assessments with THOR Cloud Lite can fortify your cybersecurity strategy.
The following video shows a compromise assessment with our free THOR Lite scanner on a Microsoft Exchange 2019 server detecting ProxyShell and ProxyToken exploitation. We've done no post-editing in this video. You can jump to all findings using the video chapters....
Last week, we've released a blog post on how to detect HAFNIUM activity with the use of THOR Lite. Since our first set of rules, we've added several important new rules from fellow researchers and moved even more rules from our commercial set into the open source rule...
Since we've decided to migrate many of the HAFNIUM / Exchange vulnerability related signatures into the open source signature database of our free scanner THOR Lite, both users of the free and the commercial version started asking questions of coverage and if a scan...
Supercharge your detection with more than hand crafted, curated high quality YARA rules.VALHALLA boosts your detection capabilities with the power of thousands of hand-crafted high-quality YARA and Sigma rules. Our team curates more than...
In this blog article, we will talk about how you can use THOR to scan Docker images. Consider the following use case: Before using an upstream Docker image, you want to precheck it for known IOCs and backdoors. THOR can help you with this!Prerequisites Docker image...
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...
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...
New Baselining Views Over the course of the last 18 months we reviewed most of our detections regarding their success in real world scenarios. In this context "success" means, that the detection uncovered malicious activity in the wild and at the same time had a low...
We've updated our Antivirus Event Analysis Cheat Sheet to version 1.9.0. It includes updates in almost all sections add special indicators for all kinds of Microsoft Exchange exploitation activity (ProxyLogon, ProxyShell etc.) moves Ransomware indicators to highly...
We have received reports from customers that were approached by service providers that offered compromise assessments with our scanner THOR. Subsequently, it appeared, however, that these providers used THOR Lite in their engagements and, when asked about this, argued...
Since we've heard from partners and friends about many non-profit organisations affected by the Exchange server vulnerability, we've decided to transfer many detection rules from our commercial scanner into the free community version. If you haven't heard of THOR or...