I am a Senior Security Researcher/Team Lead at Fortinet. I am a Lead Trainer responsible for training the junior AV/IPS analysts in malware analysis and reverse engineering.
I have presented in different conferences like BSidesVancouver, BSidesCapeBreton, OAS-First, BSidesOttawa, SecTor, DefCamp, BCAware, AtlSecCon, BSidesCalgary, TakeDownCon, MISABC, InsomniHack, ShowMeCon, CircleCityCon, and HackInParis.
I am a regular contributor to the Fortinet blog and to the Virus Bulletin publication, where I have published 22 articles.
Hijacking the Boot Process – Ransomware Style
Have you ever wondered how a boot process works? How a computer detects which operating system it needs to load? Or what is the impact if that single sector in your harddisk is compromised?
In this presentation, we are going to look into how Petya, a ransomware, can overwrite an MBR (Master Boot Record), both in MBR- and GPT-style disk, with its malicious code. Then, we are going to follow the code in the MBR and show how a simple malicious kernel code can take control of the boot process until you pay the ransom. I will show a demo on how to debug the MBR to see how the actual native code executes without any API.
We are also going to see how we can use a combination of different tools to figure out how a ransomware can infect the very first sector of a harddisk. Tools, such as, Disk Management, DISKPART, WinObj, Process Monitor, and HDHacker. And of course, x64dbg and ollydbg for debugging the ransomware in application-level. And finally, we are going to see how to use Bochs debugger to analyze the malware while it runs its own kernel code.
Are you the next cyber security superstar?
Ready for this year's presentations?
By registering you will unlock access to 60+ speakers and two full days with cyber security news & showcases from worldwide leaders.
Sponsors & Partners
They help us make this conference possible.
At Orange Business Services, we help our customers transform their industries, reimagine their services, create a positive impact and unleash the power of their data into an amazing and trusted resource.
With the dual expertise as a global operator coupled with the agility of an end-to-end integrator, Orange Business Services is a global network-native, digital services company. From connectivity, smart mobility services and the cloud to artificial intelligence (AI), analytics and cybersecurity, Orange Business Services helps businesses at every stage of their data management. Orange Business Services is represented in Romania by the business division of Orange Romania and helps large companies, SMEs and public authorities to transform their organizations through the use of technology and digital information.