Sucuri SiteCheck: Website Security Checker
SiteCheck is a website security scanner that checks any site, link, or URL for malware, viruses, blacklist status, seo spam, or malicious code. Website Malware Scanning... · X-Frame-Options · Security Headers - X-Content...
Jotti's malware scan
Jotti's malware scan is a free service that lets you scan suspicious files with several anti-virus programs. You can submit up to 5 files at the same time.
VirusTotal
Analyse suspicious files, domains, IPs and URLs to detect malware and other breaches, automatically share them with the security community. File · URL · Search.