I'm currently working on deobfuscating a piece of powershell code used in a trickbot campaign.
I understand that the script is initializing a system directory object to create a new directory, but I don't understand what [TYPE] actually does or why it is required.
I have tried to google this, but I cant really find any satisfying answer.
Set-Item 'variAblE:8TKm0' ([TYPE]"system.io.directory");
(Get-Item 'variAblE:8TKm0').Value::"CreateDirectory"($HOME + "\Frv3p35\Ntwhagi\");
Its a data type: The most common DataTypes (type accelerators) used in PowerShell are listed below.
[string] Fixed-length string of Unicode characters
[char] A Unicode 16-bit character
[byte] An 8-bit unsigned character[int] 32-bit signed integer
[long] 64-bit signed integer
[bool] Boolean True/False value
[decimal] A 128-bit decimal value
[single] Single-precision 32-bit floating point number
[double] Double-precision 64-bit floating point number
[DateTime] Date and Time[xml] Xml object
[array] An array of values
[hashtable] Hashtable object