Aggregator

结合腾讯SOC在客户侧的运营实践，本文首先介绍安全运营在业界落地中普遍遇到的问题，并分享腾讯SOC在解决该问题时的思路和工作。

if (!in_array('sm4-cbc', openssl_get_cipher_methods())) { printf("不支持 sm4\n"); } $key = 'her-cat.com'; $iv = random_bytes(openssl_cipher_iv_length('sm4-cbc')); $plaintext = '她和她的猫'; $ciphertext = openssl_encrypt($plaintext, 'sm4-cbc', $key, OPENSSL_RAW_DATA , $iv); printf("加密结果: %s\n", bin2hex($ciphertext)); $original_plaintext = openssl_decrypt($ciphertext, 'sm4-cbc', $key, OPENSSL_RAW_DATA , $iv); p

Researching malware has many challenges. One of those challenges is obfuscated code and intentionally corrupted binaries. To address challenges like this, we've written a small tool in C that could fix intentionally corrupted binaries automatically. We also plan to open-source the project so other researchers could use it too, and perhaps improve and expand upon the tool's capabilities as needed.

前言最近痴迷于看 RFC 及各类规范文档，从中发现一些有趣的利用。

This is a guest post DEVCORE collaborated with Zero Day Initiative (ZDI) and published at their blog, which describes the exploit chain we demonstrated at Pwn2Own 2021! Please visit the following link to read that :)

• FROM PWN2OWN 2021: A NEW ATTACK SURFACE ON MICROSOFT EXCHANGE - PROXYSHELL!

If you are interesting in more Exchange Server attacks, you can also check our series of articles:

• A New Attack Surface on MS Exchange Part 1 - ProxyLogon!
• A New Attack Surface on MS Exchange Part 2 - ProxyOracle!
• A New Attack Surface on MS Exchange Part 3 - ProxyShell!
• A New Attack Surface on MS Exchange Part 4 - ProxyRelay!

With ProxyShell, an unauthenticated attacker can execute arbitrary commands on Microsoft Exchange Server through an exposed 443 port! Here is the demonstration video:

跨平台社区化Web指纹识别工具ObserverWard_0x727

CTF Writeup

The NCSC's Cloud Security Research Lead suggests some approaches to help you get confidence in cloud services.

In part 2 of his Cloud Blog Trilogy, Andrew explains why it's better for everyone if cloud providers are willing to be open about how they run their services.

Highlighting guidance which will help you secure your servers

Guidance for enterprise administrators, small businesses and home users in relation to the recently published 'Krack' vulnerability in Wi-Fi networks protected by WPA2.

代码嵌套几百个 if(...)if(...)if(...)if(...)if(...) 会怎样？

如何打穿几千台的内网域渗透？当然是靠 WMI 横向移动了

1.更改请求方式 这是一种检查绕过验证码的简单方法，只需更改“请求的请求方法”并删除验证码参数 示例 POST — — -> GET (POST请求转GET) #更有效 POST — — -> PUT (POST请求转PUT) 2.删除参数或使用先前使用的验证码 3.修改JSON请求到正常请求 有时

翻译自英文文章：《Enriching Threat Intelligence Platforms Capabilities》。文章讲述一个丰富化的威胁情报平台的实现思路，以扩展当前 TIP 中的...

前言 Java技术栈漏洞目前业已是web安全领域的主流战场，随着IPS、RASP等防御系统的更新迭代，Java攻防交战阵地已经从磁盘升级到了内存里面。 在今年7月份上海银针安全沙龙上，我分享了《Java内存攻击技术漫谈》的议题，个人觉得PPT承载的信息比较离散，技术类的内容还是更适合用文章的形式来分

With DDoS, we typically observe a moderate degree of attacker persistence. DDoS attacks are relatively easy to launch from a number of online booter services, and the availability of cryptocurrencies for payment has made it easy to remain anonymous. Attackers can try their hand at DDoS for little effort and money, and in relative safety. They give it a go, try a few things (vector, endpoint, and scale changes), and for those with effective defenses, the attacker eventually burns out.

Summary Multiple sources, including T-Mobile, have reported on a data breach that occurred against the cellular communications company. The data breach affects more than 100 million of T-Mobile's customers. Threat Type Data Breach Overview First reported by Vice on Saturday, August 14, T-Mobile has suffered a data breach that purportedly affects more than 100 million of its customers. More than 106GB of data, including social security numbers, names, addresses, IMEI numbers, and driver license information a

0x01 背景前言我是个记性不太好的人，因此平日里会去写写弄弄把零碎的想法记录下来。之前内容排版上大多都是按照自己的习惯、语言上的常识，在看完阮一峰老师的中文技术文档写作风格指南 之后觉得挺有必...