Today I’d like to share the following reverse engineering path since it ended up to be more complex respect what I thought. The full path took me about hours work and the sample covers many obfuscation steps and implementation languages. During the analysis time only really few Antivirus (6 out of 60) were able to […]Read more "Interesting hidden threat since years ?"
Machine learning (ML) is a great approach to detect Malware. It is widely used among technical community and scientific community with two different perspectives: Performance V.S Robustness. The technical community tries to improve ML performances in order to increase the usability on large scale while scientific community is focusing on robustness by meaning how easy […]Read more "Attacking Machine Learning Detectors: the state of the art review"
Nowadays is hard to give strong definitions on what are the differences between Security Operation Centers (SOC), Computer Emergency Response Teams (CERT) and Computer Security Incident Response Teams (CSIRT) since they are widely used in many organisations accomplishing very closed and similar tasks. Robin Ruefle (2007) on her paper titled “Defining Computer Security Incident Response […]Read more "CERTs, CSIRTs and SOCs after 10 years from definitions"
Hi folks, today I’d like to share a nice trick to unprotect password protected VB scripts into Office files. Nowadays it’s easy to find out malicious contents wrapped into OLE files since such a file format has the capability to link objects into documents and viceversa. An object could be a simple external link, a […]Read more "Unprotecting VBS Password Protected Office Files"
During the past few weeks some people asked me how to build a “cyber security offensive team”. Since the recurring question I decided to write a little bit about my point of view and my past experiences on this topic without getting into details (no: procedures, methodologies, communication artifacts and skill set will be provided). […]Read more "The Offensive Cyber Security Supply Chain"
During the past few weeks I read a lot of great papers, blog posts and full magazine articles on the ShadowBrokers Leak (free public repositories: here and here) released by WikiLeaks Vault7. Many of them described the amazing power of such a tools (by the way they are currently used by hackers to exploit systems […]Read more "ShadowBrokers Leak: A Machine Learning Approach"
Another free weekend, another suspicious link provided by a colleague of mine and another compelling feeling to understand “how it works”. The following analysis is made “just for fun” and is not part of my professional analyses which have to follows a complete different process before being released. So please consider it as a “sport […]Read more "A quick REVENGE Analysis"
A couple of days ago a colleague of mine gave me a “brand new” malicious content delivered by a single HTML page. The page was sent to an email box as part of a biggest attack. I found that vector particularly fun and so I’d like to share some of the steps who took me […]Read more "Crypt0l0cker Revival !"
One of the most challenging tasks during Machine Learning processing is to define a great training (and possible dynamic) dataset. Assuming a well known learning algorithm and a periodic learning supervised process what you need is a classified dataset to best train your machine. Thousands of training datasets are available out there from “flowers” to […]Read more "Malware Training Sets: A machine learning dataset for everyone"