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- How to perform APK simple code injection
- 1. Foreword When the apk is not encrypted, the smail file is obtained by decompiling it. Just inject the code that needs to be injected. Then seal and sign it! 2. Make apk Use androidstudio to generate a simple apk. Just use the default code. packagecom.example.myapplication1;importandroidx.appcompat.app.AppCompatActivity;importandroid.os.Bundle;publicclassMainActivityextendsAppCompatActivity{
- Safety 2324 2023-05-14 11:43:06
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- How to optimize SylixOS network card driver
- 1. Development environment Operating system: SylixOS Programming environment: RealEvo-IDE3.1 Hardware platform: AT9x25 development board 1. Technical implementation After writing the network card driver and realizing the basic sending and receiving functions, this article will briefly introduce it How to optimize the sending function of the network card driver and improve the throughput and real-time performance of sending. 1.1 Network card sending throughput optimization The network card driver can improve sending throughput through zero copy. The driver calls the enetCoreTx sending function to realize the sending of Ethernet messages. This function receives two parameters, which are netdev structure type pointer and pbuf type pointer. enetCoreTx will copy the content pointed to by pbuf to
- Safety 1540 2023-05-14 11:16:14
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- How to use wireshark simply
- The ideal access environment for wireshark is a hub, but there are basically no pure hubs on the market now. Most of the so-called hubs on the market are small switches and the like. As we all know, the traffic of the switch router is sent to the destination port, that is, the destination port will only receive data packets sent to itself, while the hub is broadcast and sends data packets to all ports in the entire broadcast domain, so on the hub Packet capture is ideal. When wireshark captures packets, you can use filtering to capture only the packets you want to capture, or you can set no filtering, in which case all packets on the network will be captured. In the data packets captured by wireshark, data packets of different protocols are highlighted in different colors, and in the v of the main menu
- Safety 1126 2023-05-14 10:31:05
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- What are the commonly used Oracle statements for performance testing?
- Oracle's performance test mainly simulates a large number of SQL statement operations to put pressure on the database server. Before testing, you need to prepare the following SQL statements to be simulated, test scripts, and prepare the test control machine, test pressure machine, and the database server under test. Oracle database performance advantages and disadvantages Advantages 1. Can run on all mainstream platforms (including windows). Fully supports all industry standards. Adopt a completely open strategy. This enables customers to choose the most suitable solution. Full support to developers. 2. Parallel servers extend the capabilities of windownt by enabling a group of nodes to share work in the same cluster, providing high availability and high scalability cluster solutions. 3. If windowsNT
- Safety 1691 2023-05-14 09:13:05
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- SoapFormatter deserialization vulnerability example analysis
- 1. Preface NetDataContractSerializer and DataContractSerializer are used to serialize and deserialize data sent in Windows Communication Foundation (WCF) messages. There is an important difference between the two: NetDataContractSerializer includes the CLR, adding extra information through CLR types and saving references to support type precision, while DataContractSerializer does not. Therefore, NetDataContr can only be used if the same CLR type is used on the serialization and deserialization sides
- Safety 2287 2023-05-14 09:07:05
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- Javascript how to convert array to object
- Converting an Array to an Object If you want to convert an array to an object, the fastest way is with the spread operator (...). varplants=['Saturn','Earth','Uranus','Mercury','Venus','Earth','Mars','Jupiter'
- Safety 1583 2023-05-14 08:49:05
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- Why does online behavior management ban teamviewer?
- A few days ago, the Shenzhen Network and Information Security Information Notification Center issued an emergency notice stating that the well-known remote office tool TeamViewer has been compromised by the overseas hacker group APT41, reminding corporate organizations to take protective measures. In other words, APT41 has broken through all the protection systems of TeamViewer and obtained relevant data permissions. The risk level is very high. Before teamviewer officially provides solutions and releases relevant patches, we recommend that users suspend the use of teamviewer software to avoid unnecessary losses. The following is an introduction to teamviewer communication methods and how to use WSG Internet Behavior Management to ban teamviewer. 1.teamv
- Safety 1559 2023-05-14 08:37:13
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- How to implement PAP authentication in PPP
- [Experiment name] PPPPAP authentication [Experiment purpose] Master the process and configuration of PPPPAP authentication [Background description] You are the network administrator of the company. In order to meet the growing business needs, the company has applied for dedicated line access. Your client router and When ISP conducts link negotiation, it must verify the identity, configure the router to ensure link establishment, and consider its security. [Requirement Analysis] Ensure security verification during link negotiation. During link negotiation, the username and password are transmitted in clear text. [Preliminary knowledge] Basic router configuration knowledge, PPPAP knowledge [Experimental equipment] 2 routers (with serial ports) 2 V.35 cables (DTE/DCE) 1 pair [Experimental principle] PPP protocol is located in the data link layer of the OSI seven-layer model , PPP agreement
- Safety 1679 2023-05-14 08:34:05
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- APACHE OFBIZ XMLRPC Remote Code Execution Vulnerability Example Analysis
- Overview Researchers have reported a deserialization vulnerability in ApacheOFBiz. This vulnerability is caused by multiple Java deserialization issues and may be triggered when the code handles requests sent to /webtools/control/xmlrpc. An unauthenticated, remote attacker could trigger and exploit this vulnerability and achieve arbitrary code execution by sending a crafted malicious request. Vulnerability Analysis ApacheOFBiz is an open source enterprise resource planning (ERP) system that provides a series of enterprise applications to help enterprises automate many business processes. It contains a framework that provides common data models and business processes for all applications in the enterprise
- Safety 1973 2023-05-14 08:10:11
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- What are the advantages and disadvantages of mesh networking?
- Advantages and disadvantages of mesh networking: 1. Advantages: The network automatically repairs. Its advantage is that it automatically roams seamlessly and does not drop when crossing routes. Weak signals are automatically removed and will automatically connect to strong router signals. It can also self-synchronize, modify the main router, and sub-routes will automatically synchronize wifi and other parameter configuration information. The self-healing function of the network topology is adaptive, and the connection methods are divided into: wired connection, wireless connection, and wired and wireless hybrid connection. 2. Disadvantages: Too many nodes. Its shortcomings are also obvious: delay, because each forwarding requires a certain delay, and the delay is higher after multiple forwardings. Especially when wireless backhaul uses chain connections, mesh networks are not suitable for networks with high real-time requirements. There should not be too many nodes. The characteristic is that during wireless backhaul, too many nodes will affect the bandwidth.
- Safety 10948 2023-05-14 08:10:05
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- How to analyze network layer related packets and data of TCP and IP
- TCP/IP network layer related packets and data 1) IP packet encapsulation: IPv4 has 32 bits and IPv6 has 128 bits. The maximum size of an IP packet can be 65535 bytes. Its structure is as shown below: Additional explanations are needed: Service type: Mainly divided into PPP, indicating the priority of this IP packet, which is rarely used at present; D, if it is 0, it means general delay (delay), if it is 1, it means It is low latency; T, if it is 0, it means normal transmission volume, if it is 1, it means high transmission volume; R, if it is 0, it means general reliability, if it is 1, it means high reliability; UU: Reserved and not yet used ;Total together, the format is PPPDTRUU. Flag: The format is DM, where D, if it is 0, it means it can be segmented, if it is
- Safety 1348 2023-05-13 23:55:04
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- What are the big data tools and frameworks that Java developers must know?
- 1. MongoDB - the most popular, cross-platform, document-oriented database. MongoDB is a database based on distributed file storage, written in C++ language. Designed to provide scalable, high-performance data storage solutions for web applications. Application performance depends on database performance. MongoDB is the most feature-rich among non-relational databases and is most like a relational database. With the release of MongoDB 3.4, its application scenario capabilities have been further expanded. The core advantages of MongoDB are its flexible document model, highly available replica sets, and scalable sharded clusters. You can try to understand MongoDB from several aspects, such as real-time monitoring of MongoDB tools, memory usage and page
- Safety 2211 2023-05-13 23:49:12
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- What is database auditing
- Database audit tools and their applications There are four basic platforms for creating, collecting, and analyzing database audits: local database platform, system information/event management and its log management, database activity monitoring, and database audit platform. 1. Local auditing: refers to using a local database for data acquisition, but using the database system itself to store, classify, filter and report events. IBM, Microsoft, Oracle and Sybase all offer different solutions for this situation, but essentially they all seek to obtain the same information. Although the data is typically stored in a database, it can be exported to plain text files or provided as XML data to other applications. The use of native functions saves the time spent on acquiring, deploying, and managing
- Safety 2587 2023-05-13 23:46:11
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- How to perform Web permission maintenance analysis
- Preface Permission maintenance, in the red-blue confrontation, I think its significance lies in two points: one is to prevent the obtained permissions from being destroyed by the blue team; the other is to prevent other red teams from obtaining the same permissions (although it is a bit unethical...). I won’t talk about illegal uses in other situations. I think the principle of maintaining permissions is that it cannot affect the normal operation of the original business. (For example, changing the background password will prevent the administrator from logging in, changing the read and write permissions of the folder will prevent normal files from being uploaded, etc.). Maintaining background permissions When we obtain background permissions through weak passwords or blasting, in order to prevent the administrator from changing the password or other red teams changing their passwords and losing permissions, in this case, we need to maintain the background permissions. Changing the background password yourself is of course the stupidest way. You can choose the method by following the
- Safety 1152 2023-05-13 23:28:21
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- How to search for possible elements with javascript
- Note 1. The matching pattern you want to search may have parts that are not sure to exist. You can use question marks to specify possible elements. 2. This will check the previous zero or one element. This symbol can be considered as the preceding element. The example requires modifying the regular expression favRegex to match the word versions of American English (favorite) and British English (favourite). letfavWord="favorite";letfavRegex=/change/;//Modify this line letresult=favRegex.test(favWord);Reference letfavWord="favor
- Safety 917 2023-05-13 23:07:04
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