Highlights from Black Hat & DEFCON

I spent the last week at the “Hacker Summer Camp” of Black Hat and DEFCON. Besides meeting people and enjoying the dual craziness of the DEFCON crowd and the Black Hat business hall, we also gave a well received lecture – Escalating Insider Threats using VMWare’s API. Ofri Ziv, Head of GuardiCore labs, presented a […]

Escalating Insider Threats Using VMware’s API

Overview VMware vSphere is the most widely used virtualization platform for on-premises data centers. Similarly to other virtualization platforms, it basically relies on host servers running guest machines. These hosts and guest machines can be managed using administration interfaces such as vSphere API and VIX API. The GuardiCore Labs team has discovered a vulnerability in […]

Top 5 Things to See and Do During Black Hat 2017

From the horrors of ransomware, panic over election hacking, stolen emails to very interesting things like WannaCry andPetya/NotPetya/Nyetya/Goldeneye, it’s been a red-letter year in the world of cybersecurity. At Black Hat 2016 we introduced the Infection Monkey, free, open source pen test tool to educate the world on lateral movement.  Lateral movement is how hackers […]

GDPR is coming. Brace for impact

Do you remember the Data Protection Directive 95/46 EC ? Probably not, and for a good reason:  This 1995 European Union (EU) directive regulates the processing of personal data within the EU. Compliance throughout the years has been mandatory but its enforcement section was weak, keeping the risk of non-compliance for companies at low rates. […]

SambaCry, the Seven Year Old Samba Vulnerability, is the Next Big Threat (for now)

Overview The Samba team released a patch on May 24 for a critical remote code execution vulnerability in Samba, the most popular file sharing service for all Linux systems. Samba is commonly included as a basic system service on other Unix-based operating systems as well. This vulnerability, indexed CVE-2017-7494, enables a malicious attacker with valid […]

Detecting and Mitigating WannaCry and Its Copycats Using GuardiCore Centra Platform

Attack overview WannaCry and its copycat attacks work by exploiting the Microsoft Windows SMB Server critical vulnerability (MS17-010). Patched Windows machines are safe while any unpatched Windows machine is at risk. The WannaCry campaign threatens internet facing as well as internal networks, since a compromised laptop/server in the network will try to propagate and infect […]

Musing on Ransomware and Other Sophisticated Attacks

Everyone has something to write about ransomware. One can not open a mobile device or a news site without getting notification about some new ransomware-related content.  There’s a good reason: The recent events, media attention and to a certain degree, the public’s panic around the WannaCry ransomware attack are driving a lot of interest and even increase the […]