Two heads is better than one, here is a list of free antivirus services that provide users with multi-engine online scanners. There is not much of a difference between having 40 antivirus engines as opposed to 20, the most important thing about this service is to have various opinions instead of one.
If you have a suspicious file you can submit it to the following websites and their system will analyze your file, these services will analyze suspicious files and facilitate the quick detection of viruses, worms, Trojans, and all kinds of malware detected by antivirus engines. Upload And Scan Suspicious Files, these online scanners scan individual files on demand. It does not offer permanent protection for the user’s system either.
URL + Files | Max 35MB | 1 Engine
Kaspersky VirusDesk uses antivirus databases and reputation information from Kaspersky Security Network. It notifies about known threats detected in the file and shows detailed information about each threat. Kaspersky Virus Desk does not disinfect files. Important: Kaspersky VirusDesk cannot be used for protection against viruses and threats.
The results of a scan performed by Kaspersky VirusDesk may differ from scan results of other Kaspersky Lab antivirus solutions due to differences in their settings. Kaspersky VirusDesk scans files and archives up to 50 MB in size. To scan multiple files, compress them to an archive with the word “virus” or “infected” as a password. If you want to scan a larger file, use Kaspersky Whitelist, which checks files’ reputation by their checksum.
URL + Files | Max 128MB | 1 Engine
Everyone knows that once you are on malicious or fraudulent websites, your PC can easily become infected, especially if your computer or mobile device does not have anti-virus software installed. But could this be avoided? Yes, and it’s as simple as this: if a website looks suspicious, you check it on this web page before clicking on the unknown link.
Scan your computer for viruses and other malicious and unwanted programs here for FREE. The files submitted for online scanning will be checked by the latest version of the Dr.Web Anti-virus and the hottest add-on to the Dr.Web virus database. Upon scanning completion, a scan report will be displayed.
URL + Files | Max 128MB | 54 Engines
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. VirusTotal, a subsidiary of Google, is a free online service that analyzes files and URLs enabling the identification of viruses, worms, trojans and other kinds of malicious content detected by antivirus engines and website scanners. At the same time, it may be used as a means to detect false positives, i.e. innocuous resources detected as malicious by one or more scanners.
URL + Files | Max 140 MB | 43 Engines
Metascan Online is a free online file scanning service powered by OPSWAT’s Metascan technology, a multiple engine malware scanning solution. Metascan is a powerful and flexible solution for detecting and preventing known and unknown threats. ISVs, IT admins and malware researchers use Metascan to get easy access to multiple anti-malware engines at a single time, via a rich set of APIs.
Files | Max 50 MB | 15 Engines
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. There is a 50MB limit per file. Please be aware that no security solution offers 100% protection, not even when it uses several anti-virus engines. All files are shared with anti-virus companies so detection accuracy of their anti-virus products can be improved.
Files | Max 20 MB | 49 Engines
VirSCAN.org is a FREE on-line scan service, which checks uploaded files for malware, using antivirus engines, indicated in the VirSCAN list. On uploading files you want to be checked, you can see the result of scanning and how dangerous and harmful/harmless for your computer those files are.
VirSCAN.org cannot replace antivirus software on your computer. VirSCAN is not supposed and able to protect your computer from malware. VirSCAN only scans files, which may contain viruses, trojans, backdoors, spyware, dialers. However, VirSCAN does not bear responsibility for the results of scanning. Even if all the AV engines, included to VirSCAN fail to detect any kind of malware in the file you upload, it does not guarantee its being clean and safe for your computer. Some antivirus engines may define the files you will upload as malware, but it may turn out to be a false positive.
The list of antivirus engines used are ahnlab, alyac, antivir, antiy, arcabit, avast, avg, baidu, baidusd, bitdefender, clamav, comodo, ctch, cyren, defenx, drweb, emsisoft, fortinet, fprot, fsecure, gdata, hauri, hunter, ikarus, jiangmin, k7, kaspersky, kav4fs, kingsoft, nano, nod32, panda, pcc, qh360, qqphone, quickheal, rising, sophos, sunbelt, sxf, symantec, systweak, tachyon, thehacker, tws, vba, virusbuster, xvirus.
URL + Files | Max 50 MB | 1 Engine
Avira’s online virus scanner uses the same antivirus engine as the popular Avira AntiVirus program to scan submitted files and URLs through an online form. The form asks for your contact details so the URL of the results can be sent to you. A maximum of five files no larger than 50 MB each can be uploaded.
If the suspicious files contain new malware which is unknown to us at this moment, they will update their signature database. After that we’ll be able to detect and – if technically possible – remove it.
URL + Files | Max 1 MB | 1 Engine
If you discover a suspicious file on your machine, or suspect that a program you downloaded from the internet might be malicious you can scan it here. Enter the file name to be checked in the box to the right and it will automatically be uploaded from your computer to a dedicated server where it will be scanned using FortiClient Antivirus. A confirmation email will be sent to the provided email address containing the results of the scan.
Upload a file to FortiGuard Online Virus Scanner for a quick check against its scanner. After you upload the file, enter your name and email address in case they need to send you a message about the file. After you submit the file for review, wait for the page to refresh and you’ll see the results at the top.
URL + Files | 42 Engines
This is a free malware analysis service for the community that detects and analyzes unknown threats using a unique Hybrid Analysis technology. Upload and share your file collections. Receive instant threat analysis using CrowdStrike Falcon Static Analysis (ML), reputation lookups, AV engines, static analysis and more. All files uploaded will be made available to the community YARA/String search.
10. BitBaan MALab
URL + Files | 23 Engines
Bitbaan is the first iranian startup in the malware analysis field which was founded by a group of graduates of Sharif University of Technology in 2016. Bitbaan produces new products and offers services in the IT security area by experts and new ideas. Bitbaan seeks to provide a secure world for all cyberspace users.
URL + Files | 42 Engines
[ Discontinued ] This is a place where you can check content for quick detection of viruses, worms, trojans, and all kinds of malware. Also you can scan web-pages and domains.