404. That’s an error.
The requested URL /_/+1/confirm?hl=en&url=https://www.sans.org/course/reverse-engineering-malware-malware-analysis-tools-techniques/type/asc/virtual was not found on this server. That’s all we know.
/_/+1/confirm?hl=en&url=https://www.sans.org/course/reverse-engineering-malware-malware-analysis-tools-techniques/type/asc/virtual