Java implements multi-threaded downloader

Foreword: About the author: I am Xiaoba final, a school student who loves technology. Personal homepage: Personal homepage 1 || Xiaoba final’s homepage 2 Series of columns: project column If there are any mistakes in the knowledge points of the article, please correct them! Learn and make progress together with everyone If you feel that […]

Amazon Image Downloader: Use the Scrapy library to complete image download tasks

Overview This article introduces how to use Python’s Scrapy library to write a simple crawler program to download product images from the Amazon website. Scrapy is a powerful crawler framework that provides many convenient features, such as selectors, pipelines, middleware, proxies, etc. This article will focus on how to use Scrapy’s image pipeline and proxy […]

Analysis of a suspected MMCore downloader

Overview This is a folder virus with a relatively advanced technique. It is linked to the MMCore sample through the domain name and may be related to the Indian APT organization. This virus uses anti-virus separation technology and has 2 samples, a loader and a payload. The main function of the loader (the file name […]

Anti-killing confrontation – no file implementation & separation and splitting – text extraction + loader separation + parameter protocolization + image steganography

No file implementation & amp;Separation and splitting No file landing & separation split is actually memory anti-virus. Memory anti-virus is to load the shellcode directly into the memory. Since there is no file landing, the file scanning strategy can be bypassed. In order to make the memory anti-killing effect better, when applying for memory, a […]

Object file loader under Linux

Foreword There are already many loaders for Coff files under Windows, such as CoffLoader and the BOF function of CS, but the related functions on Linux are still lacking. Therefore, this article introduces the relevant technologies and provides the implementation code. Goal setting void println(char *buf); void debugln(char *buf); void hello_world(); int test_func_call(unsigned char *buf){ […]

Arduino as ISP and Arduino bootloader

Arduino ISP turns your Arduino into an in-circuit programmer for reprogramming AtMega chips. Why is Arduino like this? There are many things, but one of the most important things is that every Arduino board can be easily programmed using the Arduino software (IDE). Connect it to your computer USB port and press the “Upload” icon […]

JVM performance optimization – class loader, manually implement hot loading of classes

1. Hierarchy of class loading mechanism Each written class file with the “.java” extension stores the program logic that needs to be executed. These “.java” files are compiled into files with the extension “.class” by the Java compiler. The “.class” files are saved in According to the virtual machine instructions after the Java code is […]

JVM performance optimization – class loader, manually implement hot loading of classes

1. Hierarchy of class loading mechanism Each written class file with the “.java” extension stores the program logic that needs to be executed. These “.java” files are compiled into files with the extension “.class” by the Java compiler. The “.class” files are saved in According to the virtual machine instructions after the Java code is […]