The Petya ransomware was distributed via a similar method and hackers also modified the Mac Bittorrent app Transmission on official servers to compromise users' computers. The attack vector isn't a new one, but it's become a lot more prevalent in recent months. Users that have used these on their system can still seek support in reverting the. This includes but is not limited to: CCleaner, Tronscript, PC matic, snappy driver installer, and driver pack solutions. "By exploiting the trust relationship between software vendors and the users of their software, attackers can benefit from users' inherent trust in the files and web servers used to distribute updates," said Cisco Talos researchers, who discovered the threat, in a blog post. We do not support cleaners, debloaters, or booster software of any kind as they damage the operating system. Users trust the brand, which makes it a prime target for attackers. Starting life as a "crap cleaner," CCleaner has earned a reputation for its ability to remove rogue programs and clear things like tracking cookies on Windows PCs. The company said it has already forced updates of the affected version and in its own words was "able to disarm the threat before it was able to do any harm." The impact is damaging, but considering that the application has amassed over 2 billion downloads and adds around 5 million new users each month, it could have been significantly worse. Piriform's CCleaner, owned by antivirus provider Avast, was found to be hosting a "multi-stage malware payload" that could install ransomware or keyloggers and further infect target computers on command.Īccording to Avast, around 2.27 million people ran the affected software, which was delivered via a hacked server. Microsoft's official statement on Registry cleaners recommends staying away from them don't even bother with this feature of CCleaner.A popular PC-cleaning software used by over 130 million people put users at risk after hackers were able to insert malware into legitimate downloads. While most people regard CCleaner's Registry cleaner as better than other random ones online, you still don't need to use it. In fact, if a Registry cleaner is too zealous, it can actually cause more problems than it solves. While orphaned entries and other minor problems do occur in the Registry over time, there is no good evidence that cleaning the Registry will speed up your computer. This section is simple: you don't need to use Registry cleaners. On Applications, you can clear temporary data for other browsers as well as apps like Steam, VLC, and TeamViewer.Ĭheck everything you're interested in cleaning and hit Analyze to see how much space your action will save. The Windows section has Edge and internet Explorer browser data, as well as Windows files like log data, thumbnail caches, and emptying the Recycle Bin. But now, are these problems cleaned up? And further, is CCleaner even worth using? Have a look at our guide to replacing CCleaner for more history and information.Īll of these factors made it feel more like an unwanted program than something that benefits your computer. On top of this, CCleaner's free version regularly nags you to upgrade to the paid version. Note: Im guessing my CCleaner dump file was generated on 2 because I was unable to safely eject my USB thumb drive (the location of my CCleaner Portable files) after closing the CCleaner v6.04 interface and all open instances of File Explorer and had to kill the CCleaner64. That update also made CCleaner difficult to close through standard methods.įinally, in 2018 the app also started ignoring users' preference to disable automatic updates. CCleaner does not have an auto-update system, so users must download and install CCleaner 5.34 manually. This is fairly standard, but the problem was that when you turned the setting off, it re-enabled itself upon a reboot. Updating CCleaner to v5.34 removes the old executable and the malware. Later, the company introduced an "Active Monitoring" feature that collected anonymized data about your usage. The 32-bit app version on CCleaner's website was hacked, adding a Trojan to the download, which the company thankfully caught before it became widespread. In case you're not familiar, CCleaner's issues started in 2017 shortly after developer Piriform was bought by Avast.
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