A DMA attack is a type of side channel attack in computer security, in which an attacker can penetrate a computer or other device, by exploiting the presence of high-speed expansion ports that permit direct memory access (DMA). DMA is included in a number of connections, because it lets a connected device (such as a camcorder, network card, storage device or other useful accessory or internal PC card) transfer data between itself and the computer at the maximum speed possible, by using direct hardware access to read or write directly to main memory without any operating system supervision or interaction. The legitimate uses of such devices have led to wide adoption of DMA accessories and connections, but an attacker can equally use the same facility to create an accessory that will connect using the same port, and can then potentially gain direct access to part or all of the physical memory address space of the computer, bypassing all OS security mechanisms and any lock screen, to read all that the computer is doing, steal data or cryptographic keys, install or run spyware and other exploits, or modify the system to allow backdoors or other malware. Preventing physical connections to such ports will prevent DMA attacks. On many computers, the connections implementing DMA can also be disabled within the BIOS or UEFI if unused, which depending on the device can nullify or reduce the potential for this type of exploit. Examples of connections that may allow DMA in some exploitable form include FireWire, CardBus, ExpressCard, Thunderbolt, USB 4.0, PCI, PCI-X, and PCI Express. (Wikipedia).
DDoS Attack Explained | What Is DDoS Attack? | Cyber Security Training | Simplilearn
This video on "What is a DDoS attack?" will help you understand all about a DDoS attack. Distributed Denial of Service (DDoS) attack is one of the most dangerous forms of cyberattacks. In this video, we will start with a few real-life scenarios of DDoS attacks and then learn about a DDoS a
From playlist Ethical Hacking Playlist [2023 Updated] 🔥
DDoS Attack | DDoS Attack Explained | What Is A DDoS Attack? | Cyber Attacks Explained | Simplilearn
In the video on what is a DDoS Attack, we learn how DDoS attacks are growing in number and strength. For our lesson on DDoS Attack Explained, we learn the working a DDoS attack, and it's various categories. We also read about the potential aims of launching DDoS Attack campaigns and some p
From playlist Cyber Security Playlist [2023 Updated]🔥
Is A DOS Attack A Weapon? | Idea Channel | PBS Digital Studios
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateidea Here's an idea: a DOS attack is a weapon. Denial of Service (DOS) or Distributed Denial of Service (DDOS) attacks take down servers by distracting them with meaningles
From playlist Newest Episodes
SYN Flood Denial of Service attack using perl script and hping3 tool.
From playlist Denial of Service attacks
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DDOS Attack Explained | What Is DDOS Attack? | Cyber Security Training For Beginners | Simplilearn
This video on DDOS Attack Explained will help you understand what is DDoS attack and all about it. In this video, we will start with a few real-life scenarios of DDoS attacks and then learn about a DDoS attack in-depth. We will also look into the types of DDoS attacks and how you can preve
From playlist Cyber Security Playlist [2023 Updated]🔥
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To learn how you can help in the fight against Dihydrogen Monoxide check out http://www.stevespanglerscience.com/dhmo.html
From playlist April Fool's Day Favorites
Which Incapacitating Agent is the Most Effective?
This time, we're ranking incapacitating agents! The term incapacitating agent is defined by the United States Department of Defense as: "An agent that produces temporary physiological or mental effects, or both, which will render individuals incapable of concerted effort in the performance
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Tutorial: GeoHTTP Remote Buffer Overflow and DoS
A real example of a Buffer Overflow/Denial of Service attack! My favorite video: http://www.youtube.com/watch?v=z00kuZIVXlU Visit http://binslashshell.wordpress.com and join our forum community!!! This is a video showing what a Buffer Overflow Aattck can do to a Web Server. For th
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Stanford Seminar - Thunderclap & CHERI (Capability Hardware-Enhanced RISC Instructions)
Peter Neumann SRI International November 6, 2019 Thunderclap: A Research Platform for I/O Security; CHERI: Capability Hardware-Enhanced RISC Instructions This is a two-part talk on SRI's joint work with the UK University of Cambridge. The first part is based on a paper that is part of ou
From playlist Stanford EE380-Colloquium on Computer Systems - Seminar Series
DEFCON 20: Hacking the Google TV
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24C3: Why Silicon-Based Security is still that hard: Deconstructing Xbox 360 Security
Speakers: Michael Steil, Felix Domke Console Hacking 2007 The Xbox 360 probably is the video game console with the most sophisticated security system to date. Nevertheless, is has been hacked, and now Linux can be run on it. This presentation consists of two parts. In the first par
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23C3: Stealth malware - can good guys win?
Speaker: Joanna Rutkowska Challenges in detecting system compromises and why we're so far behind the (smart) bad guys The presentation will try to present current challenges in detecting advanced forms of stealth malware and explain why current detection approaches, as used in commerc
From playlist 23C3: Who can you trust
Nintendo has a new console, and it's more secure than ever. The Switch was released less than a year ago, and we've been all over it. Nintendo has designed a custom OS that is one of the most secure we've ever seen, making the game harder than it has ever been before. In this talk we will
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Kernel Recipes 2018 - XDP: a new programmable network layer - Jesper Dangaard Brouer
This talk will introduce XDP (eXpress Data Path), and explain how this is essentially a new (programmable) network layer in-front of the existing network stack. Then it will dive into the details of the new XDP redirect feature, which goes beyond forwarding packets out other NIC devices.
From playlist Kernel Recipes 2018
Speaker: Juergen Pabel Mitigating cold-boot attacks for Full-Disk-Encryption software Cold boot attacks are a major risk for the protection that Full-Disk-Encryption solutions provide. FrozenCache is a general-purpose solution to this attack for x86 based systems that employs a special C
From playlist 27C3: We come in peace
Speaker: Juergen Pabel Mitigating cold-boot attacks for Full-Disk-Encryption software Cold boot attacks are a major risk for the protection that Full-Disk-Encryption solutions provide. FrozenCache is a general-purpose solution to this attack for x86 based systems that employs a specia
From playlist 27C3: We come in peace
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To learn how you can help in the fight against Dihydrogen Monoxide check out http://www.stevespanglerscience.com/dhmo.html
From playlist April Fool's Day Favorites
Speakers: Milosch Meriac, Harald Welte Free RFID reader and emulator This presentation will introduce and demonstrate OpenPCD and OpenPICC. The purpose of those projects is to develop free hardware designs and software for 13.56MHz RFID reader and transponder simulator. OpenPICC can
From playlist 23C3: Who can you trust