10 August 2017

New results related to our research about Linux/Moose, an IoT botnet that conducts social media fraud (SMF), were published in the scientific journal, Social Media & Society, last week. The article is open-source and available at: http://dl.acm.org/citation.cfm?id=3097301. However, if you don’t want to bother reading it, the blog post provides a quick summary of the main findings. 

June 28, 2016

Content Security Policy (CSP)  is a HTTP header that instruct the browser to limit resource loading of media, styles and scripts.

As you may know, CSP is not adopted yet by industry. Multiple surveys have already been made about the adoption of the security header [1] [2] [3]. Even so, it does not mean that we cannot prepare ourselves for the technology. For this purpose, we have built a Burp and ZAP extension to automate the most common validations called CSP Auditor.

May 26, 2016

In this article, we will be looking at the strategies to detect and analyze malware hidden inside an OPcache file. If you haven't read our previous article about hiding a binary webshell inside a PHP7 OPcache file, we suggest reading it before moving on.

May 04, 2016

In 2015, Alexey Tyurin from ERPScan presented at the Hack-In-The-Box Amsterdam conference [2][3] multiple attack vectors to defeat the widely used Oracle PeopleSoft (or PS) system. Many companies in various market verticals are relying on this massive and complex software to host confidential information about their employees, their students or even about the financial results of the company. Furthermore, many corporations are exposing this platform on the Internet, especially when relying on PS for career portals or student portals. A year later, I am still amazed to see publicly accessible systems or internal PeopleSoft deployments during our intrusion testing practice that are vulnerable to these common attack vectors. These deployments fail to deliver a useful result, putting the entire company workforce identity at risk. The following post will explain how to attack the PS_TOKEN, as well as describe our contributions to John the Ripper and oclHashcat in order to speed up the cracking process.