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OSFOOLER demo lab at DC CN1

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  • OSFOOLER demo lab at DC CN1


    Jaime Sánchez aka segofensiva

    Traditional methods to defeat OS Fingerprinting in Linux were written as kernel modules, or at least, as patches to the Linux kernel, like Honeyd, IP Personality, the Stealth Patch, Fingerprint ****er, IPlog... The reason is that if the aim is to change Linux TCP/IP stack behavior, and if we want to achieve it, we need to do it in the kernel layer. Most of these tools are old, doesn’t work with actual kernels of can affect tcp/ip stack performance.

    OSfooler was presented at Blackhat Arsenal 2013. It was built on NFQUEUE, an iptables/ip6tables target which delegate the decision on packets to a userspace. It transparently intercepted all traffic that your box was sending in order to camouflage and modify in real time the flags in TCP/IP packets that discover your system.

    OSfooler-NG has been complete rewritten from the ground up, being highly portable, more efficient and combining all known techniques to detect and defeat at the same time:
    • Active remote OS fingerprinting: like Nmap or Xprobe
    • Passive remote OS fingeprinting: like p0f or pfsense
    • Commercial engines like Sourcefire’s FireSiGHT OS fingerprinting
    Some additional features are:
    • No need for kernel modification or patches
    • Simple user interface and several logging features
    • Transparent for users, internal process and services
    • Detecting and defeating mode: active, passive & combined
    • Will emulate any OS
    • Capable of handling updated nmap and p0f fingerprint database
    • Undetectable for the attacker
    Target Audience: Defense and Mobile建议使用商业工具来保护您的网络,但有必要进一步确保系统的安全性。

    • 主动远程操作系统指纹识别:如Nmap或Xprobe
    • 被动远程操作系统指纹识别:如p0f或pfsense
    • 商业引擎,如Sourcefire的FireSiGHT OS指纹识别 其它特性:
    无需内核修改或补丁 具有高度的可移植性
    • 将模拟任何操作系统 能够处理Nmap和p0f指纹数据库(beta阶段)
    • 对用户透明
    • 攻击者无法检测到
    • 适用于您的Linux笔记本电脑,服务器和移动设备 有关该工具的更多详情和见解,请关
    注下方Defcon 21的演示文稿。


    Jaime Sánchez (aka @segofensiva) has worked for over 20 years as a specialist advisor for large national and international companies, focusing on different aspects of security such as consulting, auditing, training, and ethical hacking techniques. He holds a Computer Engineering degree and an Executive MBA. In addition, he holds several certifications, like CISA, CISM, CISSP, just to name a few, and a NATO SECRET security clearance, as a result of his role as advisory of many law enforcement organizations, banks and large companies in Europe and Spain.

    He has spoken in renowned security conferences nationally and internationally, as in RootedCON, Nuit du Hack, Black Hat, DEF CON, DerbyCON, NocOnName, Deepsec, Shmoocon or Cyber Defence Symposium, among others. As a result of his researches, he has notified security findings and vulnerabilities to top companies and vendors, like Banco Popular, WhatsApp, Snapchat, Microsoft, Apple etc.

    He is a frequent contributor on TV (TVE, Cuatro, LaSexta, Telecinco), press (El Pais, El Mundo, LA Times, NBC News) and radio programs, and writes a blog called ‘SeguridadOfensiva’

    Jaime Sanchez(又名@segofensiva) 从事大型国内和国际公司的专家顾问20多年,专注于安全的各个方面,如咨询、审计、培训和道德黑客技术。
    硕士学位。此外,由于他为欧洲和西班牙的许多执法机构、银行和大公司提供咨询服务,他还持有多项证书,如CISA、CISM、CISSP以及NATO SECRET安全许可等。

    Twitter: @segofensiva
    PGP Key:

  • #2
    Hello, I'd like to ask you some technical questions about OSFOOLER.