VirusTotal
VirusTotal is a free service that analyzes suspicious files and URLs and facilitates the quick detection of viruses, worms, trojans, and all kinds of malware. You can upload files up to 150 MB in size.
X-Ray is a software that automates submission of files that you think is suspicious to 35 antivirus companies* for manual analysis by virus analyst professionals with a click of a button.
xray is a software that automates submission of files that you think is suspicious to 35 antivirus companies* for manual analysis by virus analyst professionals with a click of a button.
it also works as a frontend for virustotal that offers additional features on top of the functionality that virustotal provides.
*) agnitum, antiy labs, avast, avg, avira, bitdefender, quickheal, clamav, comodo, dr.web, emsisoft, eset, fprot, fsecure, fortinet, hacksoft, ikarus, k7antivirus, kaspersky, kingsoft, mcafee, microsoft, norman, nprotect, panda, pc tools, rising, sophos, superantispyware, symantec, totaldefense, trendmicro, vba32, vipre, virobot.
Productivity Utilities Security
portable antivirus virus-scanner