Your adserver is showing targeted malware
On this site, the page Google brings you to when searching for "WinSCP"
https://winscp.net/eng/index.php
...has an AdWords or similar advertisement frame. The ads I see there are all pretending to be the download link (one of them is just a giant green "Download ->" button), and they are all coming up as links to malware sites. Some of the sites have cute names like "secureFTPdownload.com." You are being targeted.
https://winscp.net/eng/index.php
...has an AdWords or similar advertisement frame. The ads I see there are all pretending to be the download link (one of them is just a giant green "Download ->" button), and they are all coming up as links to malware sites. Some of the sites have cute names like "secureFTPdownload.com." You are being targeted.