---BEGIN BGGPx---
Submit Date: 2024-07-08
BGGP Challenge Number: 5
Author: gremlinbeet
Contact Info (Optional):
Online Presence (Website/Social Media): https://github.com/gremlinbeet
Target File Type: powershell (.ps1)
File Size: 14
SHA256 Hash: 547170E517EACBDE32BD188A0ED54FD9B761FF31B6E882F360BE0A313D2F5DCD
Target Environment (How do we run the file?): powershell ./script.ps1
It requires powershell bundled with modern Windows (Windows 10 or 11); so, Powershell 5.1.xxx.
Any additional info?: As with almost any powershell script, before running it you may have to adjust execution policy: Set-ExecutionPolicy -Scope CurrentUser -ExecutionPolicy RemoteSigned
Link to PoC video, screenshot, or console output, if any:
Link to writeup, if any: https://github.com/gremlinbeet/binarygolf/blob/main/bggp5/powershell14.adoc
File contents (base64 encoded please): aXJtIHguZ2QvRXFJODc=
File contents (cleartext for quick reference): irm x.gd/EqI87
---END BGGPx---
Bait title due to writeup outlining 5-byte powershell script variant.
Ninja update 2024-07-08: restructured writeup and added pics, and shrunk from 16 bytes to 14 (not in an interesting way though).
---BEGIN BGGPx---
Submit Date: 2024-07-08
BGGP Challenge Number: 5
Author: gremlinbeet
Contact Info (Optional):
Online Presence (Website/Social Media): https://github.com/gremlinbeet
Target File Type: powershell (.ps1)
File Size: 14
SHA256 Hash: 547170E517EACBDE32BD188A0ED54FD9B761FF31B6E882F360BE0A313D2F5DCD
Target Environment (How do we run the file?): powershell ./script.ps1
It requires powershell bundled with modern Windows (Windows 10 or 11); so, Powershell 5.1.xxx.
Any additional info?: As with almost any powershell script, before running it you may have to adjust execution policy:
Set-ExecutionPolicy -Scope CurrentUser -ExecutionPolicy RemoteSignedLink to PoC video, screenshot, or console output, if any:
Link to writeup, if any: https://github.com/gremlinbeet/binarygolf/blob/main/bggp5/powershell14.adoc
File contents (base64 encoded please):
aXJtIHguZ2QvRXFJODc=File contents (cleartext for quick reference):
irm x.gd/EqI87---END BGGPx---
Bait title due to writeup outlining 5-byte powershell script variant.
Ninja update 2024-07-08: restructured writeup and added pics, and shrunk from 16 bytes to 14 (not in an interesting way though).