Download Sophos Home Free Antivirus

[Gabby Dreher]

HiI love sophos home antivirus, but it doesn't complete on my mac. I have a large filesystem with a million objects. It's been running slow too so I'm sure there is a trojan or two somewhere hiding. When I try to run a scan and I've run 3 of them so far, sophos stalls at about 500,000 objects left and does not report an error code that I can see. Is there a way around this, or is there a way to run scans on the usual suspect directories to get my mac cleaned?

If the second, we've got a thread on here for you ;) It hasn't really stalled, it's just still scanning an item -- that "item" is most likely a large disk image or other archive, that has to be decompressed and then have all its contents scanned. Temporarily turning off archive scanning will allow you to quickly perform a surface-level scan across your entire system -- I'd still recommend turning archive scanning back on and run a really long scan however. You might want to check the scan log to see what archive is taking the long amount of time and create a custom scan with that file excluded, to scan all other archives.

My first guess would be that you have an archive that is really big... a search for .zip, .dmg and .gz files that are over 100MB might find the culprit. You may also want to use Disk Utility to verify disk permissions and verify disk, as there could be some file-system-level corruption.

Also, a good suggestion for tracking down the culprit is in this thread: -Anti-Virus-for-Mac-Home/Full-Scan-will-not-complete/m-p/3679 -- using Sloth or lsof while you scan should pinpoint the culprit.

If you like your security software trim and without the fat, Sophos Home Premium should do the trick. Based on the company's business security software, Sophos Home Premium provides the essentials with very few extras, making it one of the least expensive, if not quite one of the best antivirus programs available.

That said, Sophos Home Premium is spare and shorn of many features we take for granted in a premium security suite, such as VPN access, a password manager or file shredding and encryption. And even though it's bare-bones, Sophos Home Premium moderately reduces a system's performance potential while it's scanning for malware.

If you want a full-featured, more expensive security suite, look to the likes of Bitdefender, Kaspersky or Norton. But if you like a bargain that can protect your PC, Sophos Home Premium might be for you.

While its competitors each offer between three and five antivirus products with escalating numbers of features and price tags, Sophos concentrates on just two. The free Sophos Home product offers basic protection for three systems, Mac or PC, and the paid Sophos Home Premium, which covers up to 10 systems for $60 per year. There's no unlimited-device license.

Sophos offers a 30-day free trial of Home Premium, and the subscription is often discounted by 25% for the first year, but there's no single-compute option. This puts anyone who wants to protect only a couple of systems at a price disadvantage. On the other hand, because Sophos Home Premium costs about half what other antivirus brands charge for their flagship products, it's a genuine bargain, even if its sparse features make it more like the competition's mid-range programs.

Sophos Home Premium uses machine learning to block phishing and ransomware attacks and webcam and microphone snooping. There's no hardened browser, but Sophos can encrypt keystrokes, stop potentially unwanted applications (PUAs) and block known dangerous websites, and its online account lets you remotely scan your other computers as long as they're online.

Sophos Home Premium is based on the company's business-minded Intercept X security software and works with Windows 7 (with Service Pack 1) through Windows 10. Macs require macOS 10.12 (Sierra) through 10.15 (Catalina), but the latest macOS 11.0.1 (Big Sur) release only protects against malware; in the coming months, Sophos will add website blocking to its repertoire. There are Intercept X apps for phones and tablets that require at least Android version 5.0 or iOS version 11.

Sophos Anti-Virus for Linux is free and compatible with most major 64-bit Linux distributions, including CentOS, Debian, Red Hat, SUSE and Ubuntu, but it isn't integrated into the PC and Mac software. If that's not enough, Sophos offers free stand-alone security tools and utilities, including the Hitman Pro malware removal applications and two software firewalls.

In addition to scanning for known threats, Sophos Home 's heuristic monitor looks for early signs of an attack while new and unique threats are uploaded to the company's Security Lab for analysis. Several times a day, Sophos updates the malware-signature databases of its 3 million users.

In return for this protection, you must let Sophos copy suspect items from your computer for threat analysis. Other antivirus brands, including Bitdefender, Kaspersky and Norton, let users opt out of this data collection while retaining full protection.

Sophos can also prevent attacks on the Windows Encrypting File System (EFS) and thwart PowerShell and side-loading exploits. It's the rare antivirus software that goes to special lengths to lock down its own code and those of other high-privilege applications that might be a tempting target for hackers.

Home Premium runs in the background with little or no user intervention. While many features can be turned on or off, there's no single place to adjust the overall security level and the program lacks an interruption-reducing gaming mode.

Sophos Home Premium hasn't been recently evaluated by two of the third-party testing labs whose results we use, AV-TEST and AV-Comparatives. But they do evaluate Sophos' business-oriented Intercept X Endpoint software, which uses the same underlying technology and scanning engine as Home Premium.

Overall, Sophos Intercept X Endpoint was stronger at finding and removing known, widespread malware threats than brand-new "zero-day" ones. It detected 100% of the widespread malware in all of AV-TEST's 2020 evaluations from January through October but missed quite a few of the zero-days.

In the same tests, the enterprise software of every other premium antivirus brand we regularly review detected 100% of zero-day malware from July through October. So did Microsoft's enterprise software.

The testing of Intercept X by AV-Comparatives in August through November mirrors these results with an overall 98.3% score. Bitdefender, ESET, Kaspersky and Microsoft all got 99.8% or 99.9% detection scores in the enterprise tests.

In October-December 2020 tests by London-based SE Labs, Sophos fell well behind the pack with an 86% protection score, letting eight out of 100 pieces of malware infect a test machine. That's even worse than Sophos' 88% score in the previous round. By contrast, Kaspersky had perfect 100% scores both times.

Most antivirus products use their own browser extensions to block known malicious websites, but Sophos Home and Home Premium go old-school, with a database of malicious sites built right into the core antivirus software.

Instead of one firewall to replace the Windows one, Sophos has two free downloadable firewall options: XG Firewall Home Edition and Sophos UTM Home Edition. It takes about five minutes to install either.

Other antivirus brands reserve parental controls for their priciest products, but Sophos includes web filtering with both Home and Home Premium. Parents can choose from 28 blockable topics, from adult content to weapons. However, the software can't filter sites by age group, lock out apps or schedule online time.

The most outstanding feature is the ability to remotely scan another system, something you don't often find with home antivirus software. Just open the Sophos Home online portal, pick the computer you want to scan and click on Clean. If the receiving system isn't online, the software will perform the task when the computer reconnects.

Sophos's online account lets you use two-factor authentication (2FA), an extra level of account security that is still rare among antivirus programs. This option requires that you enter a time-limited code you receive on your phone or email when logging in from a new computer.

Sophos Home Premium lacks a hardened browser for secure online banking and shopping, but it can foil a keylogger program by encrypting the data flow from the keyboard to the system. This should go a long way toward keeping your password and username away from prying eyes.

The program's CryptoGuard ransomware defenses can spot an encrypting ransomware attack and stop it in its early stages. Should any damage result, CryptoGuard can replace partially encrypted files with copies, rolling back any changes made.

Sophos engineers have integrated its Hitman Pro software into the Home Premium product. This allows the program to perform deep scans and wipe clean malware that other antivirus products, including spyware, rootkits and Trojans.

Sophos Home Premium uses the same scanning technology as the company's industrial-grade business program, Intercept X. Neither has a quick-scan option, but the full-system scanner is so fast that you'll hardly miss it. On the downside, these speedy scans eat up a lot of system resources.

To measure system load, we used our custom benchmark test, which measures how long the CPU takes to match 20,000 names and addresses in an Excel spreadsheet. Our Lenovo ThinkPad T470 test machine had a 2.5GHz Core i5-7200U processor, 8GB of RAM and 256GB of solid-state storage with 61.2GB of files.

Before we installed Sophos Home Premium on the ThinkPad, the benchmark test finished in 10.2 seconds, which we used as a baseline. This rose to 10.8 seconds after Sophos was installed, a 6% drop in performance potential that's a bit below the average (in a good way) of all the 2021 antivirus we've seen so far. At the other extreme, Bitdefender's background hit was a large 19%.

Sophos Home Premium's first system scan took a speedy 8 minutes and 32 seconds, although it didn't tell us how many files it examined. Subsequent full scans averaged 4:37 indicating that Sophos had learned which files to skip. This speediness is likely why Sophos engineers didn't feel the need for a quick-scan option.

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