generate-pseudorandom-sequence.md

ID	C0021
Objective(s)	Cryptography
Related ATT&CK Techniques	None
Version	2.0
Created	14 August 2020
Last Modified	31 October 2022

Generate Pseudo-random Sequence

The Generate Pseudo-random Sequence microbehavior can be used for a number of purposes. The methods below include specific functions, as well as pseudorandom number generators (PRNG).

Methods

Name	ID	Description
GetTickCount	C0021.001	Malware generates a pseudo-random sequence using GetTickCount.
Use API	C0021.003	Malware generates a pseudo-random sequence using a Windows API.
rand	C0021.002	Malware generates a pseudo-random sequence using rand.
RC4 PRGA	C0021.004	Malware generates a pseudo-random sequence using the RC4 Pseudo Random (Byte) Generation Algorithm (PRGA).
Mersenne Twister	C0021.005	Malware generates a pseudo-random sequence using the Mersenne Twister PRNG.