The npm package bella-kembang37-riris contains malicious code linked to a large-scale spam campaign flooding npm with over 15,000 packages. These packages include autopublish scripts that automatically generate and publish derivative packages with randomized Indonesian-themed names. The malicious payload manipulates package.json files by removing private flags, altering version numbers, and continuously republishing variants to inflate developer reputation scores for the tea.xyz token reward system and pollute the npm registry.