Mindblow...... what the hell? How does BitNinja knows this

This is ridicolous,…
How does BitNinja even know if something is malware? Is there like a list or something?

BitNinja uses signature-based detection, like most anti-malware tools. It looks at pieces of code and creates a kind of fingerprint. Attackers might try changing the file to avoid exact matches, but those fingerprints often stay embedded in the code — and that’s how it still gets caught.