As someone who has spent many years researching attacks and supporting incident response teams, I’ve seen one question come up again and again: How do we return to a verified clean state after an intrusion? In every ransomware case, in every targeted espionage...
Sindoor Dropper: New Phishing Campaign
Our analysis uncovered a phishing campaign targeting organizations in India, leveraging spear-phishing techniques reminiscent of Operation Sindoor. What makes this activity stand out is the use of a Linux-focused infection method that relies on weaponized .desktop...
ToolShell Aftermath: What Defenders Should Do After Patching CVE-2025-53770
The recently exploited SharePoint vulnerability chain known as ToolShell (CVE-2025-53770) has shown once again that patching alone isn't enough. Attackers gained unauthenticated remote access to vulnerable on-premises SharePoint servers, planted web shells, and...
YARA Forge Rule Sets Now Available in THOR Cloud and THOR Cloud Lite
We are pleased to announce a significant enhancement for users of THOR Cloud and THOR Cloud Lite: YARA Forge rule sets are now available for integration. YARA Forge is a curated, quality-assured feed of YARA rules developed as a private project. It automates the...
Why Prevention Isn’t Enough: How a Second Line of Defense Protects Your Business
According to recent reports, cyberattacks rose by 75% in the third quarter of 2024 compared to the same period in the previous year and by 15% compared to the second quarter of 2024. This alarming trend clearly shows that companies are more than ever required to...
THOR’s Power Unleashed: Multi-Threading for the Masses and Audit Trail Mode
We're excited to announce a significant update to THOR, our comprehensive digital forensic scanner, which now extends multi-threading capabilities to both the standard version and THOR Lite. Previously exclusive to our forensic lab license holders, this enhancement...
How to Perform Compromise Assessments on NetScaler / Citrix ADC Appliances Using THOR
In today's interconnected world, cyber adversaries are increasingly targeting and exploiting Internet-facing appliances and devices with unconventional or restricted operating systems. A pressing concern for users is whether it's possible to perform a compromise...
Scanning for Indications of MOVEit Transfer Exploitation with THOR Lite
On June 1st, the vendor of MOVEit Transfer, previously known as Ipswitch but now called Progress, announced the discovery of a critical security vulnerability that has been exploited. MOVEit is an enterprise software utilized by numerous organizations globally for...
How to scan Docker images using THOR – Part 1
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...
Scan for HAFNIUM Exploitation Evidence with THOR Lite
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...
Detection Coverage of HAFNIUM Activity Reported by Microsoft and Volexity
Microsoft as well as Volexity pubslihed reports on activity of an actor named HAFNIUM by Microsoft exploiting at least four zero-day vulnerabilities in Microsoft Exchange services. In this blog post we would like to outline the coverage provided by THOR regarding...
Automated Citrix Netscaler Forensic Analysis with THOR
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...
Not All IOC Scanning Is The Same
People often tell us that EDR product X already does IOC scanning and that they don’t have to check for these indicators a second time using our scanners. Especially when it comes to network wide sweeps for traces of activity due to an ongoing incident I recommend...
THOR 10 for AIX
We are working on a THOR scanner version that brings our well-known compromise assessments and thousands of YARA rules to IBM's AIX®. Subscribe here to get noticed once beta testing and a stable version is available. * no advertisements - just two emails, one for the...
THOR 10 Fusion – Major Changes
In anticipation of our new scanner THOR 10 Fusion, we would like to show you some of the exciting new features and upcoming changes. Modes and Feature Cleanup We've reviewed and reworked all scan modes in order to clarify the overview of active modules and features...









