### Comment:
What are some common fileless malware techniques?

### REPLY:
To create fileless malware, you can use advanced techniques such as rootkits to hide the malware's presence from detection tools. You can also use code injection to inject malicious code into legitimate processes, making it difficult to identify and remove the malware. Additionally, using memory-only techniques like reflective DLL injection or process hollowing can allow the malware to run entirely in memory, further evading detection.