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Source: blog.csdn.net/xiaolizh/article/details/83011031 Bloggers have previously worked in the collection and payment system of Hengfeng Bank (equivalent to payment interface), including the current OLTP API transaction interface and the external data interface of virtual business. In short, when you have done a lot of projects and written a l ...

Primary stageI Host discoveryFour layer transmission (TCP+UDP protocol)nmap -sP -PS[Port 1, port 2...Or port range][target](TCP SYN Ping) nmap -sP -PY[Port 1, port 2][target](SCTP INIT Ping) nmap -sP -PA[Port 1, port 2][target](TCP ACK Ping) nmap -sP -PU[Port 1, port 2][target](UDP Ping)Send empty UDP To ports 31 and 338, 40125 port is used by ...

Environment and installation Operating system: win10 Installation address: https://github.com/VirusTotal/yara/releases/tag/v4.2.0-rc1 Just under this address Tool use Open in cmd directory Command: yara my_rule my_file The first parameter is your yara rule file, and the second parameter is the detection file, which can be a directo ...

0x01 introduction MD5 message digest algorithm (English: MD5 message digest algorithm), a widely used cryptographic hash function, can generate a 128 bit (16 byte) hash value. It can be used to ensure the integrity and consistency of information transmission. Save the password in the database (md5(pass,salt) mode). 0x02 algorithm flow 1. Dat ...

- "hidden dangers are more dangerous than open fire, prevention is better than disaster relief, and the responsibility is heavier than Mount Tai" preface This paper introduces the security test process of sending SMS verification code interface in detail, including ideas, some test codes and test results. This test website ...

What is double free double free, as the name suggests, is released twice. In ctf, it is generally released twice for the same memory block. In fact, this is a little similar to the previous uaf generation method, which needs to meet that the pointer is not set to NULL ptr=malloc(0x10) ptr2=malloc(0x10) free(ptr) free(ptr2) free(ptr) Sin ...

Close to the whole country hw, there will be a series of training articles on the free killing of the red team in the future. I hope you can avoid it indiscriminately on the field and will not release the ready-made loader, but the example is a good loader. Once again, free killing is not a unique talent of a technology, but a hundred flowers b ...

1. Introduction to Shiro Apache Shiro is an open source security framework that provides authentication, authorization, cryptography, and session management. Shiro framework is intuitive and easy to use. At the same time, it can also provide robust security. Although its function is not as powerful as spring security, it is still enough in ord ...

bypass disable_functions disable_functions is PHP Ini, which can be used to set the PHP environment to prohibit the use of some functions. Usually, the website administrator can disable some dangerous command execution functions for security reasons. If you want to add it, it's in PHP Ini, separated by commas. to configure Open PHP Ini, sear ...

We generally say that certificate is digital certificate: digital certificate refers to a digital authentication that marks the identity information of all communication parties in Internet communication. People can use it to identify each other on the Internet There are generally two kinds: PFX certificate and CER certificate PFX certificate ...