Ttdinject.exe

Commands

1. ExecuteAdministrator T1127

   Spawn process using other binary

   TTDInject.exe /ClientParams "7 tmp.run 0 0 0 0 0 0 0 0 0 0" /Launch "{PATH:.exe}"

   Execute a program using ttdinject.exe. Requires administrator privileges. A log file will be created in tmp.run. The log file can be changed, but the length (7) has to be updated.

   os: Windows 10 2004 and above, Windows 11

   Execute: EXE

2. ExecuteAdministrator T1127

   Spawn process using other binary

   ttdinject.exe /ClientScenario TTDRecorder /ddload 0 /ClientParams "7 tmp.run 0 0 0 0 0 0 0 0 0 0" /launch "{PATH:.exe}"

   Execute a program using ttdinject.exe. Requires administrator privileges. A log file will be created in tmp.run. The log file can be changed, but the length (7) has to be updated.

   os: Windows 10 1909 and below

   Execute: EXE

Detection

• Sigma https://github.com/SigmaHQ/sigma/blob/683b63f8184b93c9564c4310d10c571cbe367e1e/rules/windows/create_remote_thread/create_remote_thread_win_ttdinjec.yml
• Sigma https://github.com/SigmaHQ/sigma/blob/7ea6ed3db65e0bd812b051d9bb4fffd27c4c4d0a/rules/windows/process_creation/proc_creation_win_lolbin_ttdinject.yml
• IOCParent child relationship. Ttdinject.exe parent for executed command
• IOCMultiple queries made to the IFEO registry key of an untrusted executable (Ex. "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\payload.exe") from the ttdinject.exe process

Resources

• https://twitter.com/Oddvarmoe/status/1196333160470138880