Hey Legin, welcome to BleepingComputer.
Nod32 is detecting the tool under its heuristic scanning techniques.
Certain parts of smitfraudfix are classified as risktools, namely process.exe.
Antivirus programs cannot distinguish between "good" and "malicious" use of such programs.
Therefore Nod32 alerted you of the possible risk.
I can assure you it's safe to continue, even though it has been flagged as malicious.