Many old links that claim to host these files have been taken over by malicious actors. Downloading an old .rar file from a shady source is a primary way to infect a computer or phone with Trojans.
Searching for and attempting to download old .rar files from the "3GP era" carries significant risks today: Indo3gp.com Maen Di Toilet.rar
Translated from Indonesian, this means "Playing in the Toilet." In the context of early internet viral culture, this usually signaled amateur "hidden camera" or "scandal" content, which was a massive driver of traffic for these sites. Many old links that claim to host these