Online Virus Scanner List

Here is a lists of online virus scanner services to scan your computer files for virus threads. These online anti virus scanner services are totally free to use and able to perform fast malware and anti virus scanning.

You can use these scanners to determine if a file is safe or malicious without putting your system at risk.

How it works:
Virus scanners operate by searching your harddisk(s) for files which might be infected by a virus. This method is never 100% secure, since only known viruses (or known virus patterns) are detected. If an infection has been detected in a certain file, the virus scanner might be able to clean the file, but very often this is not the case. In that case, you can try another scanner to clean the file, you can try to replace the file or - as a last resort - delete it.

However, if many important operating system files are affected, it might be the best solution to reformat the harddisk and install the operating system from scratch.
There are even viruses can not be cleaned by mere hard-disk reformatting. E.g. so-called boot-viruses infect the boot-sector of disks, and will very often not be removed by simply reformatting the harddisk. A number of virus scanners listed on this page is able to repair a boot-sector.

Note: Online virus scanners don't offer real-time protection and so should never be considered a substitute for an installed antivirus scanner.



Multiple Antivirus Engines:

VirusTotal: uses over 40 AV engines. This service has an excellent detection rate. It
gives detailed results from each AV engine and provides real time global statistics.
Note: VirusTotal also has an uploader program (140KB) that will automatically sends files to VirusTotal without you opening your web browser. 20 MB file size limit. >> Read More

Jotti's Malware Scan: uses 20 AV engines. 25 MB file size limit.

VirSCAN: uses 37 AV engines. 20 MB file size limit. 

VirusChief: uses 13 AV engines. 10 MB file size limit.

 

NoVirusThanks: uses 24 AV engines. 20 MB file size limit. Note: NoVirusThanks also has an uploader program.

Metascan Online: uses 19 AV engines. 40 MB file size limit.

Gary's Hood: uses 5 AV engines. 10 MB file size limit.

Allthreats: uses 3 AV engines. 10 MB file size limit. 

  
Single Antivirus Engine:

a-squared Web Malware Scanner
avast! Online Scanner
BitDefender Online Scanner
CA eTrust Virus Scanner
ClamAV Online Specimen Scanner
Dr.Web Online Link Checker
EMSI Software Scanner
ESET Online Scanner
FortiGuard
eTrust AV Online Scan
Fortinet FortiGuard Online Virus Scanner (per file basis)
F-Secure Online Scanner
Kaspersky Online Virus Scanner
McAfee FreeScan
Microsoft Malware Protection Center (single file upload with results via email)
Panda ActiveScan 2.0
PC Pitstop Virus Scanner (based on Panda antivirus engine)
Sunbelt Malware Sandbox
SUPERAntiSPyware Online Scanner

Symantec Security Check
Tenebril Online Spyware Scanner (scan spyware only)
Trend Micro HouseCall
VirusBlokAda Vba32 File Scanner (in Russian)
Virus Chaser for Web



Online Automated Malware Analysis Services:

Anubis
Comodo Automated Analysis System
CWSandbox
EUREKA Malware Analysis Internet Service
Joebox
Norman SandBox
ThreatExpert
viCheck.ca
Wepawet
Xandora


Online Tools to Identify Malicious Websites:

AVG Online Web Page Scanner
Malware Domain List 
McAfee Site Advisor
McAfee Trusted Source
Norton Safe Web
MalwareBlacklist
PhishTank
Secure Browsing Protection
TrendMicro Web Repuation
Unmask Parasites
Webawet
Web of Trust



Resources:
http://www.selectrealsecurity.com/online-file-scan
http://tools.securitytube.net/index.php?title=Malicious_Code_Analysis
http://www.techsupportalert.com/content/how-tell-if-file-malicious.htm
http://www.malwarehelp.org/online_anti_malware_scanners.html
http://www.tipandtrick.net/2008/60-free-online-virus-trojan-spyware-and-malware-scanners-scan-or-removal/


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