Nuke Modified | AntiVirus Remover

Options of Free Online Virus Check

In earlier days of software development every case of getting a virus was a nightmare: there was little an ordinary PC user could do to sort out the issue. Times have changed, and today we have a choice of online virus scan services which offer detection and (sometimes) removal of different kinds of malware – for free.

Nowadays just about every manufacturer of PC security software offers a free online virus scan on its website, but it’s not always clear what they are, how they perform compared to stand-alone solutions, or why you might want to use them in addition to or instead of downloadable products.

What’s free online virus check in essence?

Most often online virus scans are hosted on security companies’ websites and use ActiveX technology (via Internet Explorer browser) to scan your computer, detecting any files that show up in the company’s spyware or virus definitions. This is done by comparing the user’s files against malware patterns in virus database.

Exact algorithms may vary from vendor to vendor, as does coverage. BitDefender claims it detects rootkits. Kaspersky Kaspersky Online Scanner boasts to have the highest detection rate among all antivirus products, and also releases updates to its antimalware signatures on an hourly basis; others do it once a day. Some, like Panda ActiveScan, require Internet Explorer, while others, such as Trend Micro Housecall, also support Firefox and Java platform (convenient for those with ActiveX scripting disabled).

When should you use online virus scans?

Online scans are best used for sniffing out low-level threats that don’t mess up with Internet connection. They usefully offer a reliable security testing solution while conveniently skipping the installation steps of stand-alone programs, and are usually compatible with security software already installed on your computer. If you’re concerned about higher-level threats, you should consider strengthening your PC security with a combined software solution like firewall and antispyware (optionally with anti-spyware).

The disadvantages of free online virus scans.

Most scans are just malware detectors that cannot remove infected code unless you purchase the product. That’s not necessarily a drawback if you’re open to new removal software; the online scans test-drive the product’s efficacy. (Housecall and BitDefender are pleasant exceptions, offering free removal services in addition to a free scan.)

You’ll also still want to reserve a good chunk of time to the online check — deep storage examination can take hours.

Popular scanners.

Some of the better-known online virus check services include:

Kaspersky (doesn’t allow removal, however offers a choice of scan patterns – like system memory, critical system areas, etc).

Trend Micro HouseCall (supports Firefox in addition to IE, have two scanning engines separate for ActiveX and Java technology, allows removal of infected files, detects spyware in addition to viruses).

BitDefender (free removal)

ESET Online Scan uses the same ThreatSense technology as their downloadable NOD32 antivirus.

About the Author

If you want help in choosing an antivirus solution that’s best for your needs, you’re welcome to visit a list of services providing free online virus check options to all PC users.
Kelly Wright is a PC management and data protection consultant who publishes articles about Internet security and Windows-based computers’ maintenance.

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