Details of the Compromise
According to a report by independent security researcher MotherSphere, four JavaScript files hosted on Level Infinite's official Content Delivery Network (CDN) were modified on September 27, 2026. These files contained malicious code designed to download additional payloads from attacker-controlled domains, specifically insightjs[.]com and insightjs[.]org.
BleepingComputer reported that the injected code used obfuscation to hide these domains and was designed to execute a malicious LuaJIT payload called insight.bundle. This payload installs a remote-access agent known as K2F. The malware allows attackers to:
- Remotely execute commands on the user's PC.
- Browse and download local files.
- Capture screenshots.
- Collect 'Nikke' account credentials and passwords stored in web browsers.
- Steal information from 28 types of cryptocurrency wallets, including recovery phrases and private keys.