.. /Mshtml.dll
Star

Microsoft HTML Viewer

Paths:

c:\windows\system32\mshtml.dll
c:\windows\syswow64\mshtml.dll

Resources:

Acknowledgements:

Pierre-Alexandre Braeken (@pabraeken)

Detection:

Sigma: https://github.com/SigmaHQ/sigma/blob/62d4fd26b05f4d81973e7c8e80d7c1a0c6a29d0e/rules/windows/process_creation/proc_creation_win_rundll32_susp_activity.yml

Execute

Invoke an HTML Application via mshta.exe (note: pops a security warning and a print dialogue box).
```
rundll32.exe Mshtml.dll,PrintHTML "C:\temp\calc.hta"
```
Use case
Launch an HTA application.

Privileges required
User

Operating systems
Windows 10, Windows 11

ATT&CK® technique
T1218.011