By the end of 2017, a threat group used <code>Invoke-PSImage</code> to hide [PowerShell](https://attack.mitre.org/techniques/T1059/001) commands in an image file (.png) and execute the code on a victim's system.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request. ### Instruction: List the MITRE techniques contained in the text. ### Input: By the end of 2017, a threat group used <code>Invoke-PSImage</code> to hide [PowerShell](https://attack.mitre.org/techniques/T1059/001) commands in an image file (.png) and execute the code on a victim's system. ### Response: T1027.003.