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Old 01-02-2019, 02:43 PM
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Default Virus/malware protection for an old computer



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Here's hoping one of you tech wizards can help...


One of my computers is an ancient iMac OS X (version 10.6.3) which is running the old, OLD version of Photoshop, InDesign, Illustrator, and other Adobe stuff that I frequently use. The programs are so old that they won't run on a Mac OS system newer than 10.6.3. I am not interested in paying a (not cheap to me) monthly subscription to Adobe for the newer programs.

Unfortunately, most antivirus programs will not even "speak" to an OS this old. All I want to do is be able to scan email attachments, and graphics files transmitted over the Trello app for viruses/malware before working with them.

Does anyone know of a workaround that I could try?
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Old 01-02-2019, 03:25 PM
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Default Virus/malware protection for an old computer

Quote:
Originally Posted by GrizzlyetteAdams View Post
Here's hoping one of you tech wizards can help...





One of my computers is an ancient iMac OS X (version 10.6.3) which is running the old, OLD version of Photoshop, InDesign, Illustrator, and other Adobe stuff that I frequently use. The programs are so old that they won't run on a Mac OS system newer than 10.6.3. I am not interested in paying a (not cheap to me) monthly subscription to Adobe for the newer programs.



Unfortunately, most antivirus programs will not even "speak" to an OS this old. All I want to do is be able to scan email attachments, and graphics files transmitted over the Trello app for viruses/malware before working with them.



Does anyone know of a workaround that I could try?


Have you looked at Intego?
https://www.intego.com/antivirus-mac-internet-security
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Old 01-02-2019, 03:45 PM
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Thanks for the suggestion, Corpus.

I checked with their website, and like many others, requires an operating system that is much newer than mine...
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Old 01-02-2019, 03:56 PM
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Try this:
Keep the computer off-line.
Do the work, load to a thumb drive carry to library or other computer that is on-line upload to internet.

Even if you had an antivirus that would run on your computer... it would use so much of it's computing power that you wouldn't be able to use the computer anyway.

Really sux trying to use a computer that's all bogged down by the anti-virus.

Re scanning attatchments...
do that on another computer... download to thumb drive after being scanned.
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Old 01-02-2019, 03:56 PM
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Hey GA. Have you looked at switching to Gimp and Open Office for your needs? Maybe dump IOS altogether and switch to Linux?
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Old 01-02-2019, 04:17 PM
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Thanks, SonofLiberty for your suggestions.

I already have both Gimp and Open Office, but my client is insisting that all files be in Photoshop and InDesign. ugh.

The incoming email attachments are what I am most concerned about.

I added the VirusTotal extension to my Chrome browser, which will scan stuff as a "second opinion," using their online scanner. (www.virustotal.com) Supposedly they are a reputable company in cahoots with Chrome, etc.

I am concerned that my network has already been compromised (hopefully I am just paranoid?).

I tried to submit a support ticket to VirusTotal but it won't "go." Tried it from my new Chromebook as well. Their contact page is non-functional (to me) as well... Is it truly non-functional or is my browser hijacked?
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Old 01-02-2019, 04:20 PM
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Have you considered a rootkit anti-virus like webroot? I have been using it on my windows partition for 4 years now. I have no complaints and need no other AV

St0ne's suggestion seems like a good workaround if somewhat "clunky"
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Old 01-02-2019, 04:36 PM
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So far, I have not found anything that will protect an ancient iMac OS X (version 10.6.3), but I am still hunting!
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Old 01-02-2019, 04:37 PM
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https://www.clamxav.com/


https://home.sophos.com/en-us.aspx


https://www.avast.com/en-us/index#pc


https://iantivirus-mac.en.softonic.com/mac
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Old 01-02-2019, 04:39 PM
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....and I am now concerned that my router may be likewise infected because of using a potentially infected iMac...and that a worm or something could migrate to my other devices.

????????
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Old 01-02-2019, 04:42 PM
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Thanks! I will email the last three on that list. Yesterday I emailed the first one on the list, clamXav, and they said they never wrote anything for an OS as old as mine, lol.
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Old 01-02-2019, 04:45 PM
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Quote:
Originally Posted by GrizzlyetteAdams View Post
....and I am now concerned that my router may be likewise infected because of using a potentially infected iMac...and that a worm or something could migrate to my other devices.

????????
Try This

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What is DNS hijacking and why is it harmful?
A DNS hijack means that someone has intentionally modified the settings on your router without your consent. This type of attack allows an attacker to monitor, control, or redirect your Internet traffic. For example, if your router's DNS has been hijacked, any time you visit an online banking site on any device connected to that router, you may end up being redirected to a fake version of the site.

From there, the attacker can gain access to your banking session and use it to transfer money without your knowledge. Home routers can be hacked if they contain vulnerabilities, or if they are misconfigured.
You can also do a factory reset and change to a better/stronger password. There should be a 'reset' button on the back of your router and hold it down for about ten seconds. This will also wipe all custom settings. So, you will have to redo any such settings.
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Old 01-02-2019, 09:23 PM
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10.6.3 should not be used on the internet. It has critical vulnerabilities that were never patched by Apple.
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Old 01-02-2019, 09:51 PM
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Quote:
Originally Posted by ghost792 View Post
10.6.3 should not be used on the internet. It has critical vulnerabilities that were never patched by Apple.
... well, not in 10.6.2, but issues were addressed in 10.7 and 10.8 and ....

Attack and counter attack will continue to evolve. If you cannot counter-attack, which you can't with 10.6, then you must use an air gap. Transfer everything via thumb drive.

The downside is that you will have to have a separate system for internet access.
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Old 01-02-2019, 10:23 PM
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Quote:
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... well, not in 10.6.2, but issues were addressed in 10.7 and 10.8 and ....
There are a number of Macs that can't be upgraded past 10.6.x. Those computers should not be used in an online environment.
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Old 01-02-2019, 10:46 PM
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Except for physical thumb drives, I guess that means my old iMac goose is cooked for all practical purposes... (I suspect that it may have already been infected.)

This may also make it much more difficult to business with a particular client (chain of four newspapers) that I do a lot of graphic design for.

Will simply resetting my router prevent any worms that may have gotten loose in my network? How will I know? I run mainly a Chromebook on it besides the old iMac. I have another newer Mac laptop (with antivirus) plus an iPad that was on the router a few times...
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Old 01-03-2019, 01:33 AM
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Can you run the old OS as a VM on a host machine with a modern OS?
Should work unless you are attached to the original machine hardware.
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Old 01-03-2019, 02:42 AM
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Hmm... interesting idea, thanks!

I am not sure how to do that but will look into it somehow...This is bending my non-techy mind but I am game (I think, lol).

The thing about this old Mac OS is that it is the very last one to have the Rosetta translator which is what the ancient Adobe CS2 Photoshop/InDesign/Illustrator/etc. needs to operate.
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Old 01-03-2019, 10:27 AM
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Other options:

Reinstall the OS and just create you a restore. If you ever get infected, just do a quick restore/reinstall disk.

Another option is to set it up like a lab computer. Admin rights to change whatever you want, but when the computer is restarted, it goes back to the original settings. This would wipe any virus you inadvertently get. To save documents, save them to a thumb drive or they will be lost.

No need to get a new computer if this one works. Just work around the vulnerabilities and use the device in a safe manner.

For the cost of VMWare, you may as well purchase a new laptop. I don't see that as being a logical solution, even though it would allow you to trash this old beast and use a newer computer. BTW, VMs can get large, you'll basically be using the same space you use on your computer now... in addition to the other computers OS and data.
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Old 01-03-2019, 06:15 PM
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The issue seems to be trying to save investment in software that still works as originally designed but may not work well on new OS versions.

A clean installation of the software would be a good choice. An archive of all updates still available should also be made. Archive all the resources for the latest version of software available that works with your old Adobe software.

Once the new system is created, then create an air gap . . . or, while less secure, you could also get a network attached storage.

Connect the new computer to the Internet and scan anything before saving it to the NAS (network attached storage). The new computer could also scan the data on the NAS to make sure it is not infected.

There are some viruses that will attach to data documents and run as macros that will propagate a payload.

Do not allow any network write access to your old Mac installation. No domain membership. Use the Mac to access the NAS.

Use your new "Internet Computer" to do email and virus scanning.
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