Crypto challenge, 10 Ether of prizes

Kudelski Security is launching a new crypto challenge for Black Hat. It starts today and ends on July 25th at our private party in Las Vegas. The challenge and instructions are available at In short, here's how it works: We give you the code of a service running on some remote host. As you'll find out, … Continue reading Crypto challenge, 10 Ether of prizes

Meet Us in Vegas

For the yearly migration to the insanity of Vegas infosec and hacking conferences, we're coming with some new research that we'll present at all the three sacred sites: Black Hat, then BSides, and finally at Defcon's Crypto Village. Automated Testing of Crypto Software Using Differential Fuzzing is a joint work with Yolan Romailler, whose masters … Continue reading Meet Us in Vegas

NEW UPDATE: ‘Petya/NotPetya’ Ransomware Spreading Rapidly Around Europe and Globe

UPDATE 6/30: Microsoft Windows 10 Enterprise includes a feature called “Credential Guard”. This feature can prevent certain attacker tools from compromising administrative credentials using well known techniques such as a Pass the Hash attack. Having this feature enabled would have prevented NotPeya from harvesting local credentials to spread within a local network (one of the … Continue reading NEW UPDATE: ‘Petya/NotPetya’ Ransomware Spreading Rapidly Around Europe and Globe

Installing WireGuard, the Modern VPN

Co-authored by tmlxs and adr13n WireGuard is a network tunnel (VPN) for IPv4 and IPv6 that uses UDP.  Currently most of the code resides in the Linux kernel but cross platform implementations are under way. WireGuard features an authentication scheme similar to that of SSH, whereby the VPN server and each client have their own asymmetric key pair. Authorizing … Continue reading Installing WireGuard, the Modern VPN

Distributed Fingerprinting with Scannerl

Kudelski Security is proud to announce the open-source release of Scannerl, its distributed fingerprinting tool. Scannerl Scannerl is a modular, distributed fingerprinting engine implemented in Erlang. It is to fingerprinting what zmap is to port scanning. This tool enables easily distributed fingerprinting among a large number of hosts and circumvents limitations of scale and speed, which are the principle challenges of today’s fingerprinting … Continue reading Distributed Fingerprinting with Scannerl

The Equation Group’s post-exploitation tools (DanderSpritz and more) Part 1

Since the April 14th leak of the Equation Group’s hacking tools, I have been busy testing (and decompiling / reversing) the tools, understanding and documenting capabilities, and identifying potential indicators of compromise (IOCs). My goal is to build documentation and IOCs that we at Kudelski Security (and other organizations) could leverage to identify these tools, … Continue reading The Equation Group’s post-exploitation tools (DanderSpritz and more) Part 1

WannaCry Ransomware Webcast

The number of individuals, organizations and countries affected by the WannaCry malware attack is growing at an alarming rate. After the initial infection is executed, no user intervention at all is required for the malware to spread. As this is one of the largest cybersecurity attacks in history, it's important that you have all the facts. … Continue reading WannaCry Ransomware Webcast