Malware found on app Duplicates cleaner

In the app store malware has been found by various virus software for the app Duplicates cleaner by PCVARK software private limited

MacBook Pro 13", macOS 10.13

Posted on Mar 23, 2019 3:59 AM

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Posted on Mar 23, 2019 8:57 AM

FWIW, I had a conversation with Malwarebytes support. The do in fact flag ALL PCVARK products and have since 2016 whether they have adware or not. I didn't see any evidence of adware in Duplicates Cleaner. However, to be on the safe side I would stay clear and use a different product. dupeGuru is one option. I'm sure there are others.

43 replies

Mar 30, 2019 7:45 PM in response to dialabrain

I have submitted the infomration to Apple Feedback March-30-2019.


You should loook up what a sha256 hash represents. It is not from any site it is a numerical representations of a file and only unique to that file. On a Mac you can generate sha256 checksum by performing the following command. shasum -a256 filename and it will give a unique value despite changing the files name.

May 28, 2019 5:11 AM in response to macfrombrampton

Since some of the forum users seem to think that the information provided is falses or that the Web site Virus total is not valid I am interested in any Apple forum users providing evidence that this software is not malware!

You can do that yourself. Does the app fit any of these definitions: https://www.sans.org/reading-room/whitepapers/incident/malware-101-viruses-32848

If you think it does, please explain. And, send that explanation to Apple via Feedback.

May 28, 2019 8:41 AM in response to macfrombrampton

Since some of the forum users seem to think that the information provided is falses or that the Web site Virus total is not valid I am interested in any Apple forum users providing evidence that this software is not malware


these forums are in place for technical problems with Apple products. There is no need for us to provide “evidence” on any third party software you decided to install/run.


And, you can address your problem with it with the developer and/or Apple directly.

Aug 17, 2019 7:49 PM in response to hinder90

hinder90 wrote:

4th party? You might as well have said 37th party to really drive the hyperbole home!

I was specifically talking about virustotal. The first party is Apple, the vendor. The second party is the customer. Third party is Mac software that is neither Apple nor the user. Virustotal doesn’t qualify for as any of that. It is often cited as a source of evidence of malware or malware activity by people who completely misunderstand it or are using it for malicious ends themselves. It should not be relied upon for any reason.


Some people would call Apple's actions as predatory as any virus

Anyone doing that would be so far outside reality that any attempt at rational discussion would be pointless.


Apple provide antivirus software with the operating system.
That would be news. I shudder to think what that would look like.

It wouldn’t be news because Apple has provided antivirus software as part of the operating system for several years now. Apple’s software usually does not flag any PUP (Potentially Unwanted Programs) like some 3rd party antivirus apps. Legitimate software (software distributed by a company, with lawyers) usually has to do something egregious for Apple to block it. Personally, I think that’s a shame.


While sandboxing is not a bad approach, the "unknown software publisher" warnings are pointless because if you just obeyed them you'd be unable to write your own software, for instance.

Sorry, but that statement is wrong and betrays a fundamental misunderstanding of how Apple’s security works.


While constant virus scanning and running all of the extra rubbish to "protect" you from viruses will generally render your computer slow and crippled just badly as any malware could, you'd be wise to give your machine a check once if you ever install software you think might have been shady. There is plenty out there from allegedly trustworthy outlets.

Most people have no idea if the software they have installed might be shady. Most people have no idea what software they have installed.


You are welcome to continue the fight against software you think is shady. Unfortunately, you are just one voice on a very big forum, on an even bigger internet. You can’t ever hope to reach the same audience as even a minor scam-ware developer. All you need is a little bit of money to blanket a few shady sites with scam ads. People will click through and install. In many cases, they already have MalwareBytes installed. But you have to pay for the active protection. I think Apple realizes the futility better than most. Good luck!

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Malware found on app Duplicates cleaner

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