SNOWLIGHT is a staging component in a malware chain. Its job is not to deliver the final payload itself, but to bridge execution from an initial loader or decoy file to the next malicious stage. In practice, that can mean unpacking code, launching a second-stage payload, or passing control to memory-resident malware.
This matters because staged malware is harder to detect than a single obvious executable. Defenders may see only a harmless-looking document or small loader while the real activity happens later in memory or through process injection. In real attacks, components like SNOWLIGHT often appear alongside anti-sandbox checks and fileless payload delivery, making analysis more difficult. Security teams look for unusual process chains, suspicious memory allocation, and network connections that follow an apparently benign file open.