Speculating The Entire X86-64 Instruction Set In Seconds With This One Weird Trick #cpu #intel
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Метка: Intel
Researchers discover and abuse new undocumented feature in Intel chipsets
Original text by Catalin Cimpanu Researchers find new Intel VISA (Visualization of Internal Signals Architecture) debugging technology. At the Black Hat Asia 2019 security conference, security researchers from Positive Technologies disclosed the existence of a previously unknown and undocumented feature in Intel chipsets. Called Intel Visualization of Internal Signals Architecture (Intel VISA), Positive Technologies researchers […]
Read MoreGPU side channel attacks can enable spying on web activity, password stealing
( Original text ) Computer scientists at the University of California, Riverside have revealed for the first time how easily attackers can use a computer’s graphics processing unit, or GPU, to spy on web activity, steal passwords, and break into cloud-based applications. Threat scenarios Marlan and Rosemary Bourns College of Engineering computer science doctoral student […]
Read MoreCVE-2018-5407 (Flaw in the Intel processor execution engine sharing on SMT (e.g. Hyper-Threading) architectures.) POC ,
Summary This is a proof-of-concept exploit of the PortSmash microarchitecture attack, tracked by CVE-2018-5407. Setup Prerequisites A CPU featuring SMT (e.g. Hyper-Threading) is the only requirement. This exploit code should work out of the box on Skylake and Kaby Lake. For other SMT architectures, customizing the strategies and/or waiting times in spy is likely needed. OpenSSL Download […]
Read MoreIntel Virtualisation: How VT-x, KVM and QEMU Work Together
VT-x is name of CPU virtualisation technology by Intel. KVM is component of Linux kernel which makes use of VT-x. And QEMU is a user-space application which allows users to create virtual machines. QEMU makes use of KVM to achieve efficient virtualisation. In this article we will talk about how these three technologies work together. […]
Read MoreRetargetable Machine-Code Decompiler: RetDec
RetDec is a retargetable machine-code decompiler based on LLVM. The decompiler is not limited to any particular target architecture, operating system, or executable file format: Supported file formats: ELF, PE, Mach-O, COFF, AR (archive), Intel HEX, and raw machine code. Supported architectures (32b only): Intel x86, ARM, MIPS, PIC32, and PowerPC. Features: Static analysis of executable […]
Read MoreBest SSDs: Q2 2018
Since the Holiday 2017 sales, SSD prices in general have declined a small amount. New models using 64-layer 3D TLC NAND flash memory are trickling in, with companies beyond the major NAND manufacturers now offering drives using the latest flash. The most interesting market shifts have been in the growing entry-level NVMe segment, where […]
Read MoreA Tool To Bypass Windows x64 Driver Signature Enforcement
TDL (Turla Driver Loader) For Bypassing Windows x64 Signature Enforcement Definition: TDL Driver loader allows bypassing Windows x64 Driver Signature Enforcement. What are the system requirements and limitations? It can run on OS x64 Windows 7/8/8.1/10. As Vista is obsolete so, TDL doesn’t support Vista it only designed for x64 Windows. Privilege of administrator is […]
Read MoreAVX — Advanced Vector Extensions are extensions to the x86 instruction set architecture for microprocessors from Intel and AMD
Advanced Vector Extensions (AVX) — расширение системы команд x86 для микропроцессоров Intel и AMD. AVX предоставляет различные улучшения, новые инструкции и новую схему кодирования машинных кодов. Улучшения Новая схема кодирования инструкций VEX Ширина векторных регистров SIMD увеличивается со 128 (XMM) до 256 бит (регистры YMM0 — YMM15). Существующие 128-битные SSE-инструкции будут использовать младшую половину новых YMM регистров, […]
Read MoreSSE4 — CPU instruction set used in the Intel Core microarchitecture and AMD
SSE4 — набор команд микроархитектуры Intel Core SSE4 состоит из 54 инструкций, 47 из них относят к SSE4.1 (они есть в процессорах Penryn). Полный набор команд (SSE4.1 и SSE4.2, то есть 47 + оставшиеся 7 команд) доступен в процессорах Intel с микроархитектурой Nehalem, которые были выпущены в середине ноября 2008 года и более поздних редакциях. […]
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