Introduction Lynx ransomware is a newly emerged and sophisticated malware threat that has been active since mid-2024. Lynx ransomware has claimed over 20 victims across a range of industries. Once it infiltrates a system, it encrypts critical files, appending a...
Since the launch of THOR Cloud Lite in September, our team has been dedicated to developing a more powerful version of THOR Cloud that incorporates the full scanner with its extensive suite of forensic modules and expansive detection signature database. Today, we are...
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...
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...
The analysis of Antivirus events can be a tedious task in big organizations with hundreds of events per day. Usually security teams fall back to a mode of operation in which they only analyze events in which a cleanup process has failed or something went wrong. This...
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...
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...
We are glad to announce significant performance improvements in the latest versions of THOR. We've refactored several processing units to bulk scan elements that have previously been checked each at a time. These changes affect the modules "Eventlog", "Registry",...
Our compromise assessment scanner THOR is able to apply Sigma rules during the local Eventlog analysis. This can help any customer that has no central SIEM system or performs a live forensic analysis on a system group that does not report to central monitoring. By...
Update 14.02.2023 The information in this blog post is outdated. For more information on how to scan appliances remotely using SSH see this newer blog post. In this blog post I'd like to outline an idea on how to perform an automated compromise assessment on Citrix...
Why Integrate THOR into Microsoft Defender ATP While Microsoft Defender ATP fully plays off its strength in detecting live attacks, suspicious process starts and network connections, THOR shines as a live forensic scanner that scans the local filesystem, registry,...