In Genesis 3, God curses the serpent Satan in the following words:
The Lord God said to the serpent, “Because you have done this, cursed are you more than all cattle, and more than every beast of the field; pn your belly you will go, and dust you will eat all the days of your life; And I will put enmity between you and the woman, and between your seed and her Seed; He shall bruise you on the head, and you shall bruise him on the heel.” Genesis 3:14-15 NASB
Most Christians understand the Seed of the woman to be referring to Jesus, who was uniquely born of woman. However, it seems unclear who the seed of the serpent is.
To whom exactly is this referring? I'm not sure a particular tradition matters here, but I'm most interested in a perspective that at the very least views the Scriptures as the divine Word of God (a biblical literalist), but again, I'm not sure other perspectives would really impact an understanding of this too much.