![Photo by Michael Dziedzic on Unsplash](https://res.cloudinary.com/fluid-attacks/image/upload/v1693846506/blog/osee-review/cover_osee_review.webp)
Andres Roldan
An OffSec Exploitation Expert review
In this post, we review the EXP-401 course and OSEE certification offered by OffSec.
![Photo by Sven Mieke on Unsplash](https://res.cloudinary.com/fluid-attacks/image/upload/v1683904807/blog/cnas-intel/sven-mieke-fteR0e2BzKo-unsplash.webp)
Andres Roldan
A hacker's view of the performance of Researcher CNAs
We've been a CNA for a while, and this is an analysis of our performance.
![Photo by Pramod Tiwari on Unsplash](https://res.cloudinary.com/fluid-attacks/image/upload/v1683552579/blog/osep-review/cover_osep_review.webp)
Andres Roldan
An OffSec Experienced Pentester review
In this post, we review the PEN-300 course and OSEP certification offered by OffSec.
![Photo by Oleksii Khodakivskiy on Unsplash](https://res.cloudinary.com/fluid-attacks/image/upload/v1669229599/blog/crtl-review/oleksii-khodakivskiy-RLQB7rX-pyY-unsplash.webp)
Andres Roldan
A Certified Red Team Lead (CRTL) Review
In this post we review the RTO-2 course and CRTL certification offered by Zero-Point Security.
![Photo by Axel Ruffini on Unsplash](https://res.cloudinary.com/fluid-attacks/image/upload/v1662512922/blog/offensive-hyperv-directx-1/cover_hyperv_directx.webp)
Andres Roldan
A Black Hat talk follow up
We will take a brief understanding at DirectX, a new attack surface on Hyper-V
![Photo by Lenny Kuhne on Unsplash](https://res.cloudinary.com/fluid-attacks/image/upload/v1654008461/blog/amsi-bypass-python/cover_amsi.webp)
Andres Roldan
Cross-process memory patching with Python
We will take AMSI bypass to another level by using cross-process memory injection.
![Photo by Calvin Ma on Unsplash](https://res.cloudinary.com/fluid-attacks/image/upload/v1625837523/blog/amsi-bypass/cover-amsi-bypass_sa9bdi.webp)
Andres Roldan
Dynamic in-memory AMSI bypass
In this article we will be able to bypass AMSI using memory patching.
![Photo by Shannon Litt on Unsplash](https://res.cloudinary.com/fluid-attacks/image/upload/v1620330881/blog/fuzzing-sudo/cover_g2rbr6.webp)
Andres Roldan
Replicating CVE-2021-3156 with AFL
In this article we will be able to reproduce the bug described on CVE-2021-3156 using fuzzing.
![Photo by Christina @ wocintechchat.com on Unsplash](https://res.cloudinary.com/fluid-attacks/image/upload/v1620330911/blog/hevd-privilege-escalation/cover_hrrhjs.webp)
Andres Roldan
Local Privilege Escalation
In this article we will be able to perform a Local Privilege Escalation using an exploit to HEVD.