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psexec.exe (windows提權) === ###### tags: `OSCP` ## 教學與PoC 工具直接去微軟官網下載就好 https://docs.microsoft.com/en-us/sysinternals/downloads/psexec 把下載好的PSTools.zip解壓縮到一個資料夾下 以系統管理員身分執行CMD(命令提示字元) ![](https://i.imgur.com/eaxw3b3.png) 然後切換目錄到剛剛解壓縮的該目錄下 譬如 ```bash= cd C:\Users\XXXX\Downloads\PSTools\ ``` ![](https://i.imgur.com/7fyoJxA.png) 執行指令 ```bash= psexec.exe -s -i cmd.exe ``` 應該就會彈出另一個視窗 成功拿到 systemroot 的cmd.exe 可以下指令whoami確認,身分會是nt authority\system 你就成功取得了傳說中的最高system權限 超越administrator的權限 ![](https://i.imgur.com/1CpBOBl.png) 如果上面指令失敗了 顯示存取被拒 有個可能是你的CMD執行的權限不夠 必須要用上面的方法來以系統管理員身分執行CMD才行 一般在視窗路徑輸入CMD的方法,權限很可能不夠高 ![](https://i.imgur.com/9psCBrW.png) ![](https://i.imgur.com/m8UqELS.png) ## 其他 PsExec 指令 來源: https://blog.yowko.com/psexec/ ### 用法 ```bash= psexec [\\ computer [,computer2 [,...] | @file]] [ - u user [-p psswd] [ - ns] [ - r servicename] [ - h] [ - l] [ - s | -e] c [-f | -v]] [ - w directory] ​​[ - d] [ - <priority>] [ - an,n,...] ``` ### 參數 參數| 說明 -|- -a| 指定特定處理器執行應用程式 (For example, 指定 cpu 2 及 cpu 4 來執行程式 : “-a 2,|4”) -c| 將指定執行的程式複製至目標電腦上執行;如果未使用這個參數,需確保程式存在目標電腦上的環境變數|的 system path 中 -d| 不等執行程序終止 (非互動性). -e| 不載入特定帳戶的個人資料. -f| 目標電腦上已存在要執行的檔案,仍然複製 -i| 在目標電腦上建立專屬的 session 來執行程式.未指定會在 console session 下執行 -h| 如果目標系統是 Vista 之後,在允許的情況下會提高帳戶安全性層級來執行程式 -l| 以受限使用者來執行(取消管理者群組權限,只允許指定使用者群組的權限)。 Vista 會使用低完整|性來執行 -n| 指定連線至目標電腦連線逾期的時間(單位:秒) -p| 指定帳號的密碼.如果未使用這個參數提供,會跳出視窗要求密碼 -r| 指定目標電腦上的 service –> 這我測不出用途 -s| 在目標電腦的系統帳戶下執行程式 -u| 指定登入目標電腦的使用者帳號 -v| 需執行的檔案比目標電腦新才複製檔案 -w| 設定執行的工作目錄 (對於目標電腦而言). –> 這我測不出用途 -x| Display the UI on the Winlogon secure desktop (local system only). -priority| 指定不同的優先程式來執行程式: -low, -belownormal, -abovenormal, -high or -realtime. Vista 可以使用 -background 來降低 memory 跟 I/O . computer| 指定 PsExec 執行指令的目標電腦.如果未指定電腦名稱就會直接在本機執行; 如果使用 (\*) 來指定執行目標,發動電腦及目標電腦需在同一個網域中 @file| 執行指令的目標對象清單檔案 cmd| 想要執行的應用程式名稱 arguments| 執行應用程式的參數(檔案路徑需是目標電腦上的絕對路行). -accepteula| 隱藏授權視窗 ## 其他工具列表 工具| 描述 -|- PsExec| 可讓您在任何使用者內容中執行處理序。 PsFile| 顯示系統上以遠端方式開啟的檔案。 PsGetSid| 顯示電腦或使用者的 Windows 安全性識別碼 (SID)。 PsInfo| 列出有關 Windows 系統的資訊。 PsKill| 根據名稱或處理序識別碼刪除處理序。 PsList| 列出有關執行中處理序的詳細資訊。 PsLoggedOn| 顯示所有本機登入使用者,以及遠端資源共用使用者。 PsLogList| 傾印 Windows 事件記錄檔記錄。 PsPasswd| 變更使用者帳戶密碼。 PsService| 檢視和控制 Windows 服務。 PsShutdown| 讓電腦關閉、重新啟動、休眠或暫止。 PsSuspend| 暫止執行中的處理序。

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