cyber extortion

Analysis of Petya extortion Trojan Recently, the security vendor G-Data released a report saying that a new extortion Trojan Petya was found. This trojan is characterized by first modifying the MBR Boot Sector of the system, then executing malicious code in the boot sector after forced restart, encrypting the hard disk data, displaying extortion information, and

This article starts from the daily newspaper, reprint please indicate the source Cosine, the hacker is only a symbol Yesterday's wannacry extortion worm swept the globe, even as we walked around the border with a fright. Countless not dozen MS-17010 patch Win computer or server recruit, especially many schools, related units have a variety of large network, this wave may directly cause these institutions work paralysis ... The whole world is flooded w

Microsoft and Samsung reached a broad patent cross-authorization agreement on Wednesday. The Android smartphones and tablets that Samsung ships must pay the license fee to Microsoft, A Google spokesman compared Microsoft's transaction to extortion ". A Google spokesman said in an email statement sent to the media: "We have seen that Microsoft has used this tactic many times. They cannot succeed in the smartphone market, so they use legal measures to

Surprise "fake FBI extortion", fictitious crime ransomwareRecently, Baidu security lab has discovered a series of ransomware viruses named "pseudo-FBI extortion" and their latest variants. The series of viruses will monitor users' running programs, display fake FBI notices, and trick users into paying a 300 USD penalty to unlock their mobile phones. Users cannot use any other programs, seriously affecting u

choose to use the domestic cracked version. You are welcome to pay attention to my public number and learn more about cyber security. If you have any good suggestions, also welcome to the public number to leave me a message, must be open-minded to accept useful suggestions.Search public Number:Quark network securityor long press the QR code under sweep ↓↓↓↓↓ Disclaimer: All articles published by the public are designed to disseminate

solution is to use PC and bind two-way IP/MAC on the routing, that is, bind the MAC address of the outbound route on the PC, bind the IP address and MAC address of the PC on the route. In this way, the route must support IP/MAC binding, such as the HIPER router. 3. Use IP/MAC address theft + IP/MAC binding Simply change your MAC address and IP address to the same IP address and MAC address as those running the P2P Terminator software, and check how it is managed. This is a two-pronged approach.

" The United States "Cyber weapons" research has more than 2000 kinds of, among the most notable is that the "Earthquake network" virus is the world's first dedicated to industrial control systems written by the destructive virus, known as "network space precision guidance weapons." It can exploit the vulnerabilities of the Windows system and Siemens Simatic WINCC system to attack. Attack Siemens control system data acquisition and monitoring control

Do you know the world of children's Internet? With the popularity of Weibo and other instant messaging software, children's online dating tools are more diverse, and while communication and messaging are facilitated, the higher the privacy of the internet world, the more difficult it is for parents to manage their children's online dating world. In the absence of parents ' knowledge, children's network security lurks multiple crises, through social, communication software to run away from home,

Hello everyone, I am Mr.quark, welcome everyone concerned about my public number (Quark network security ), you can leave a message on the public number, if there is time I will reply to everyone. Today I'm going to learn how to be a hacker or how to be a cyber security expert. Before we get to the point, we will first give the hacker the next definition, after all, if even the meaning of hackers do not understand, become a hacker is not to talk about

Education, the leaders told me: you have handled these problems! I tried to manage a lot of software on the Internet, but these software was either limited in functionality or unstable. It was not until the use of a LAN management software called "Network law enforcement officer" solved these problems. It is just as fair and strict as Bao Qingtian, and is a good helper for LAN Management. Software Information: cyber law enforcement officer V2.90 Sof

My God! This network speed! In LINUX, is there any software such as the cyber law enforcement officer-Linux Enterprise Application-Linux server application information? The following is a detailed description. It is best to have software such as the cyber law enforcement officer and then add an ARP firewall. There is no such software in LINUX! If yes. Let's give you some tips! The people in our LA

20145211 "Cyber Confrontation" EXP8 Web Foundation The specific requirements of this practice are:(1). Web front-end HTML (1 points) Can install normally, start and stop Apache. Understand the HTML, understand the form, understand the get and post methods, and write an HTML containing the form. (2). Web Front end Javascipt (1 points) Understand the basic JavaScript functionality and understand the DOM. Write JavaScript to verify

20145326 Cai "Cyber Confrontation"--web Foundation 1. Answer questions after the experiment(1) What is the form. A form is an area that contains form elements, which are elements that allow users to enter information into a form, which is primarily responsible for data collection in a Web page, and a form has three basic components: Form labels, form fields, form buttons. (2) The browser can parse what language to run. HTML (Hyp

20145225 Tang "Cyber confrontation" Web Security Basics Practice Reference Blog: 20145215 Luchomin basic question Answer(1) SQL injection attack principle, how to defend? A SQL injection attack is the goal of tricking a server into executing a malicious SQL command by inserting a SQL command into a Web form to submit or entering a query string for a domain name or page request. Defense: Use input rules to limit defenses, filter input data

20145318 "Cyber confrontation" injects Shellcode and return-to-libc into shellcode knowledge points Injection Shellcodeshellcode is actually a piece of code (or can be filled with data), is used to send to the server to exploit the specific vulnerability of the code, generally can get permissions. In addition, Shellcode is generally sent as data to the attacked server. Shellcode is the overflow program and the core of the worm, mentioned it w

20155331 "Cyber Confrontation" EXP9 Web security basic experimental process WebgoatEnter Java-jar Webgoat-container-7.0.1-war-exec.jar in the terminal to turn on webgoat.Open the browser, enter localhost:8080/webgoat in the Address bar to open webgoat, use the default account password to log in.XSS attack phishing with XSS cross-site scripting phishing attackArbitrarily constructs the HTML content that the user currently browses, and can even simulate

20155323 Liu Willang "Cyber Confrontation" EXP9 Web Security Foundation Practical purposeUnderstand the fundamentals of commonly used network attack techniques.Practice ContentWebgoat the experiment in practice.The practice process opens webgoat Webgoat is a flawed Java EE Web application maintained by owasp, which is not a bug in the program, but is deliberately designed for Web application security training. This app provides a realistic si

20155232 "Cyber Confrontation" EXP9 Web Security FoundationThe objective of this practice is to understand the basic principles of commonly used network attack techniques. Webgoat the experiment in practice.Experimental process WebgoatWebgoat is a web-based vulnerability experiment developed by the OWASP organization, which contains a variety of vulnerabilities commonly found in the web, such as cross-site scripting attacks, SQL injection, access cont

20155333 "Cyber Confrontation" Exp8 the foundation of Web Foundation(1) What is a form? Forms are primarily responsible for data collection functions in Web pages.There are three basic components of a form: Form labels, which contain the URL of the CGI program used to process the form data and how the data is submitted to the server. form fields, including text boxes, password boxes, hidden fields, multiline text boxes, check boxes, r

20155326 "Cyber Confrontation" EXP8 Web-based practice content(1). Web front-end HTML (0.5 points)Can install normally, start and stop Apache. Understand the HTML, understand the form, understand the get and post methods, and write an HTML containing the form.(2). Web Front end Javascipt (0.5 points)Understand the basic JavaScript functionality and understand the DOM. Write JavaScript to verify the user name, password rules.(3). Web backend: MySQL Fou