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April 4, 2024 02:29
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PowerShell IEX Hooking via Harmony Library
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| # Harmony Reference: https://github.com/pardeike/Harmony | |
| using assembly '.\net48\0Harmony.dll' | |
| using namespace HarmonyLib | |
| class HooK | |
| { | |
| static [bool] PreFix_IEX($scriptText) | |
| { | |
| [Console]::WriteLine("Original IEX Command: '$scriptText'") | |
| return $true | |
| } | |
| } | |
| function Hook-IEX() | |
| { | |
| [Harmony]$Global:harmony = [Harmony]::new("IEXPatch") | |
| $target = [AccessTools]::Method("System.Management.Automation.CommandInvocationIntrinsics:NewScriptBlock") | |
| $patch = ([HooK]).GetMethod("PreFix_IEX") | |
| $Global:harmony.Patch($target, [HarmonyMethod]::new($patch)) | Out-Null | |
| } | |
| function UnHook-IEX() | |
| { | |
| $Global:harmony.UnpatchAll() | |
| } |
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More info: https://x.com/vinopaljiri/status/1775717012112617580