SharpStrike：基于C#实现的后渗透漏洞利用研究工具

关于SharpStrike

SharpStrike是一款基于C#开发的后渗透工具，该工具可以使用CIM或WMI来查询远程系统。除此之外，该工具还可以使用研究人员提供的凭证信息或使用当前的用户会话。

注意：SharpStrike中的某些命令将使用PowerShell结合WMI以实现其功能。

SharpStrike可以帮助广大研究人员收集关于目标远程系统的数据、执行命令以及提取数据等等。该工具允许使用WMI或CIM来跟远程系统进行连接，而CIM的使用则需要我们获取到目标系统的管理员权限。

解决方案架构

SharpStrike由三个主组件构成：

服务层：提供核心功能并由UI层使用（cs、ExecuteWMI.cs、ExecuteCIM.cs）；

模型：包含整个项目所有共享的数据类型；

用户接口：GUI/命令行终端；

工具安装

我们可以选择直接使用该项目【Releases页面】所提供的预构建版本，不过这个版本是在调式模式下构建的。

手动构建

首先，我们需要使用下列命令将该项目源码克隆至本地：

git clone https://github.com/iomoath/SharpStrike.git

接下来，在Visual Studio中加载项目中的SharpStrike.sln文件。

选择顶部菜单中的“构建”项，然后构建解决方案。

此时将会生成两个版本的SharpStrike，即带有GUI界面的WinForms和命令行终端应用程序，每一个版本都实现的是相同的功能。

工具使用

命令行终端版本

SharpStrike.exe --help
SharpStrike.exe --show-commands
SharpStrike.exe --show-examples
SharpStrike.exe -c ls_domain_admins
SharpStrike.exe -c ls_domain_users_list
SharpStrike.exe -c cat -f "c:\users\user\desktop\file.txt" -s [remote IP address]
SharpStrike.exe -c cat -f "c:\users\user\desktop\file.txt" -s [remote IP address] -u [username] -d [domain] -p [password] -c
SharpStrike.exe -c command_exec -e "quser" -s [remote IP address] -u [username] -d [domain] -p [password]

GUI版本

show-commands
show-examples
ls_domain_admins
ls_domain_users_list
cat -f "c:\users\user\desktop\file.txt" -s [remote IP address]
cat -f "c:\users\user\desktop\file.txt" -s [remote IP address] -u [username] -d [domain] -p [password]
command_exec -e "quser" [remote IP address] -u [username] -d [domain] -p [password]

功能介绍

文件操作

cat                          -  Reads the contents of a file
copy                         -  Copies a file from one location to another
download**                   -  Download a file from the targeted machine
ls                           -  File/Directory listing of a specific directory
search                       -  Search for a file on a user
upload**                     -  Upload a file to the targeted machine

横向活动

command_exec**               -  Run a command line command and receive the output. Run with nops flag to disable PowerShell
disable_wdigest              -  Sets the registry value for UseLogonCredential to zero
enable_wdigest               -  Adds registry value UseLogonCredential
disable_winrm**              -  Disables WinRM on the targeted system
enable_winrm**               -  Enables WinRM on the targeted system
reg_mod                      -  Modify the registry on the targeted machine
reg_create                   -  Create the registry value on the targeted machine
reg_delete                   -  Delete the registry on the targeted machine
remote_posh**                -  Run a PowerShell script on a remote machine and receive the output
sched_job                    -  Not implimented due to the Win32_ScheduledJobs accessing an outdated API
service_mod                  -  Create, delete, or modify system services
ls_domain_users***           - List domain users
ls_domain_users_list***      - List domain users sAMAccountName
ls_domain_users_email***     - List domain users email address
ls_domain_groups***          - List domain user groups
ls_domain_admins***          - List domain admin users
ls_user_groups***            - List domain user with their associated groups
ls_computers***              - List computers on current domain

进程操作

process_kill                 -  Kill a process via name or process id on the targeted machine
process_start                -  Start a process on the targeted machine
ps                           -  Process listing

系统操作

active_users                 -  List domain users with active processes on the targeted system
basic_info                   -  Used to enumerate basic metadata about the targeted system
drive_list                   -  List local and network drives
share_list                   -  List network shares
ifconfig                     -  Receive IP info from NICs with active network connections
installed_programs           -  Receive a list of the installed programs on the targeted machine
logoff                       -  Log users off the targeted machine
reboot (or restart)          -  Reboot the targeted machine
power_off (or shutdown)      -  Power off the targeted machine
vacant_system                -  Determine if a user is away from the system
edr_query                    -  Query the local or remote system for EDR vendors

日志操作

logon_events                 -  Identify users that have logged onto a system


* All PowerShell can be disabled by using the --nops flag, although some commands will not execute (upload/download, enable/disable WinRM)
** Denotes PowerShell usage (either using a PowerShell Runspace or through Win32_Process::Create method)
*** Denotes LDAP usage - "root\directory\ldap" namespace

工具使用演示

GUI版本使用

命令行终端版本使用

【GIF】

项目地址

SharpStrike：【点击阅读原文获取】

参考资料

https://fortynorthsecurity.com/blog/cimplant-part-1-detections/

https://www.fireeye.com/blog/threat-research/2017/03/wmimplant_a_wmi_ba.html

https://c99.sh/sharpstrike-post-exploitation-tool-cim-wmi-inside/