当您需要关于您认为是恶意软件的文件的第二意见时，在线恶意软件(Malware)扫描程序会派上用场。如果在线扫描程序使用多个防病毒软件来扫描文件，那就更好了。这里列出了一些适用于Windows PC的最佳免费在线(Windows PC –)恶意软件(Malware)扫描程序——一些使用单个引擎，而另一些则使用多个防病毒扫描引擎。它们将帮助您扫描整个计算机或选择文件中的病毒。
扫描文件的最佳在线恶意软件扫描(Malware Scanners)程序
大多数这些扫描仪不会要求您在计算机上安装任何东西。您可以在他们的网站上上传文件，他们将使用不同反恶意软件服务的API扫描文件。(API)扫描完成后，您将收到有关它的报告。
- ESET 在线恶意软件扫描程序
- FortiGuard 病毒扫描程序
- 扫一扫
- 卡巴斯基
- 诺顿安全扫描
如果您担心隐私，请务必阅读扫描完成后您的文件会发生什么。大多数网站会将它们作为样本提交给各种反病毒解决方案。(anti-virus solutions.)
1] ESET 在线恶意软件扫描程序
它可以检测恶意软件——病毒、间谍软件、广告软件、蠕虫、木马。如果您不想安装其他防病毒软件，ESET允许您下载精简版。您可以使用它执行一次性扫描，以免费从您的计算机中删除恶意软件和威胁。您可以选择扫描整个系统，并执行快速扫描或自定义扫描。
2] FortiGuard 病毒扫描程序
使用此在线服务(Using this online service)，您可以选择手动将文件上传到他们的网站。上传后，该服务将使用FortiClient Antivirus对其进行扫描。您将在所提供的电子邮件地址上收到包含扫描结果的确认信息。该公司是非营利组织Cyber Threat Alliance的一部分，该组织共享实时、高质量的网络威胁信息。(Cyber Threat Alliance)
如果已报告文件或病毒，则在线扫描程序将自动检测到它。
3]扫描这里
ScanThis使用开源和行业认可的Clam AV软件。有两种方法可以扫描文件。您可以提交下载文件的链接或手动上传文件。如果您想首先确保数据安全然后下载，则前者很有用。
4]卡巴斯基
卡巴斯基(Kaspersky)拥有来自卡巴斯基安全网络(Kaspersky Security Network)的反病毒数据库和信息。当您上传文件时，它会扫描并通知您在文件中检测到的已知威胁，并显示有关每个风险的详细信息。您可以通过归档来上传多个文件，但大小限制为 50 MB。在线扫描仪将以风险级别做出响应，风险级别可能从危险到正常。
5]诺顿安全扫描
您需要下载扫描仪，然后扫描您的计算机。扫描完成后，将显示您的计算机上是否存在现有病毒、蠕虫、间谍软件、不需要的广告软件或特洛伊木马(Trojans)。
使用多个防病毒引擎的在线(Online)恶意软件扫描程序
以下免费在线恶意软件扫描程序使用多个防病毒引擎为您提供最佳结果：
- Jotti 恶意软件扫描程序
- 病毒总数
- 元防御者
- 扫描网址
- 不分发
- 病毒扫描
1] Jotti 恶意软件扫描程序
在Jotti.org，您最多可以同时提交五个文件，每个文件的大小可以是 250MB。然后将文件发送到多个防病毒引擎，例如Avast、F-Secure、Claim-AV等。
2]病毒总数
VirusTotal.com提供对可疑文件和URL(URLs)的分析以检测恶意软件类型，还可以帮助您处理文件的哈希值。上传文件后，它会使用 70 个防病毒扫描程序和URL/domain黑名单服务来查找是否存在任何恶意软件。
3]扫描网址
如果您想检查网站是否提供恶意软件，您可以使用ScanURL扫描最多三个网站。他们将检查之前是否因网络钓鱼、托管恶意软件/病毒或声誉不佳而被报告。检查是使用信誉良好的 3rd 方服务进行的，例如Google 安全浏览诊断(Google Safe Browsing Diagnostic)、PhishTank和Web of Trust ( WOT )。
4]不分发
您在此处上传的(upload here)任何文件都会经过 35 种防病毒扫描程序。你每天可以用它扫描三个文件，如果你担心隐私，该服务对它非常严格，因此得名。扫描的结果永远不会分发。如果您喜欢隐私部分，您可以选择购买扫描密钥。它可能是唯一如此公开谈论隐私的服务。
5]元防御者
Opswat 的一部分 MetaDefender (MetaDefender) Cloud允许您提交数据进行分析，然后是一份综合报告。它提供多引擎扫描，支持 zip 文件、Proactive DLP、Sandbox、Hash Lookup、CDR等。
CDR部分是一种令人兴奋的查找恶意软件的方法。它被称为 Content Disarm and Reconstruction，其中所有文件都被假定为恶意文件。然后，该过程会重建每个文件，确保内容安全且完全可用。查找零日针对性攻击特别有用。
6]病毒扫描
VirScan是另一种免费的在线扫描服务，它使用不同的防病毒引擎扫描恶意软件。支持Rar/Zip解压，但必须小于20个文件。您可以使用他们的软件扫描文件并上传文件。
在使用任何使用多个防病毒引擎的最佳在线恶意软件扫描程序时，您应该始终记住一件事。它们是为了获得第二意见，而不是作为Windows 计算机的保护系统(protection system for your Windows computer)。如果您正在寻找完整的保护，最好使用Windows 安全中心(Windows Security)或购买专业的防病毒解决方案。
相关阅读(Related read)：在线 URL 扫描(Online URL Scanners)程序，用于扫描网站中的恶意软件、病毒、网络钓鱼( scan websites for malware, virus, phishing)等。
我希望在线扫描仪列表在您怀疑某个文件或网站时对您有用。
Best Online Online Malware Scanners to scan a file
When you need a second opinion about a file that you think is malwarе, then online Malware scannеrs come in handy. And it is even better if the online scanner uses multiple antivirυseѕ to scan a file. Here is a list оf some of the best free online Malware scanners for Wіndows PC – somе use a single enginе, whereas others use multiple antivirus scan engіnes. They will help you scan your entire computer or select files for vіruses.
Best Online Malware Scanners to scan a file
Most of these scanners will not ask you to install anything on your computer. You can upload the file on their website, and they will scan the file using API of different anti-malware services. Once the scan is completed, you will receive a report about it.
- ESET Online Malware Scanner
- FortiGuard Virus Scanner
- ScanThis
- Kaspersky
- Norton Security Scan
If you are concerned about privacy, make sure to read about what happens to your files after the scan is complete. Most of the websites will submit them as samples to various anti-virus solutions.
1] ESET Online Malware Scanner
It can detect malware—viruses, spyware, adware, worms, trojans. If you do not want to install another antivirus, ESET lets you download a light version. You can use it to perform a one-time scan to remove malware and threats from your computer for free. You can choose to scan the full system, and perform a quick scan or custom scan.
2] FortiGuard Virus Scanner
Using this online service, you can choose to upload files manually to their website. Once uploaded, the service will then scan it using the FortiClient Antivirus. You will receive a confirmation on the provided email address containing the results of the scan. The company is part of the Cyber Threat Alliance, a not-for-profit organization, that shares real-time, high-quality cyber threat information.
If a file or virus has already been reported, the online scanner will automatically detect it.
3] ScanThis
ScanThis uses the open-source and industry-recognized Clam AV software. There are two ways to scan a file. You can either submit a link to the download file or manually upload the file. The former is useful if you want first to make sure the data is safe and then download it.
4] Kaspersky
Kaspersky has its antivirus databases and information from Kaspersky Security Network. When you upload a file, it will scan and notify you about known threats detected in the file and shows detailed information about each risk. You can upload multiple files by archiving them, but the size is limited to 50 MB. The online scanner will respond with the level of risk, which can be from dangerous to normal.
5] Norton Security Scan
You need to download the scanner, which then performs a scan of your computer. Once the scan is complete, it will display if there are existing viruses, worms, spyware, unwanted adware, or Trojans residing on your computer.
Online malware scanners using multiple antivirus engines
The following free online malware scanners use multiple antivirus engines to give you best results:
- Jotti Malware Scanner
- Virus Total
- Meta Defender
- Scan URL
- No Distribute
- VirScan
1] Jotti Malware Scanner
At Jotti.org you can submit up to five files at the same time, and the size of the file can be 250MB per file. The files are then sent to multiple antivirus engines like Avast, F-Secure, Claim-AV, etc.
2] Virus Total
VirusTotal.com offers the analysis of suspicious files and URLs to detect types of malware, and also helps you with the hash of files. Once a file is uploaded, it uses 70 antivirus scanners and URL/domain blacklisting services to find if there is any malware.
3] Scan URL
If you want to check if a website serves malware, you can scan up to three sites with ScanURL. They will check if it was earlier reported for phishing, hosting malware/viruses, or poor reputation. The check is made with reputable 3rd-party services, such as Google Safe Browsing Diagnostic, PhishTank, and Web of Trust (WOT).
4] No Distribute
Any file you upload here, it goes through 35 anti-virus scanners. You can scan three files every day with it, and if you are concerned about privacy, the service is very strict about it, hence the name. The results of the scans are never distributed. If you like the privacy part, you can choose to purchase a scan key. It is probably the only service that talks about privacy so openly.
5] MetaDefender
Part of Opswat, the MetaDefender Cloud, allows you to submit data for analysis, which is then followed by a comprehensive report. It offers multiple engine scanning, supports zip files, Proactive DLP, Sandbox, Hash Lookup, CDR, and more.
The CDR part is an exciting way to find malware. It is called Content Disarm and Reconstruction, where all files are assumed malicious. The process then rebuilds each file, ensuring full usability with safe content. It is especially useful to find zero-day targeted attacks.
6] VirScan
VirScan is another free online scan service which scans for malware using different antivirus engines. It supports Rar/Zip decompression, but it must be less than 20 files. You can scan files and also upload files using their software.
There is one thing you should always remember when using any of these best online malware scanners using multiple antivirus engines. They are for getting a second opinion, and not act as a protection system for your Windows computer. If you are looking for complete protection, it is best to use Windows Security or buy a professional antivirus solution.
Related read: Online URL Scanners to scan websites for malware, virus, phishing, etc.
I hope the list of online scanners is useful for you when you are suspicious about a file or a website.
