![]() Plus, it open a pathway for the user’s confidential information to be sent surreptitiously to clandestine web servers belonging to the hacker. That means that for nearly four weeks, Avast continued to distribute an infected, hacked CCleaner which contained a backdoor Trojan that was capable of downloading malware, keyloggers, ransomware and other malware onto the user’s computer - without the user’s knowledge. If CCleaner’s claims on user numbers, millions are likely affected.Īccording the information from Cisco Talos, Avast distributed the compromised, hacked version of CCleaner from Auguntil September 12, 2017. For weeks then, the malware was spreading inside supposedly-legitimate security software. Talos warned in a blog Monday that the affected version was released on August 15, but on September 12 an untainted version 5.34 was released. Comparing it to the NotPetya ransomware outbreak, which spread after a Ukrainian accounting app was infected, the researchers discovered the threat on September 13 after CCleaner 5.33 caused Talos systems to flag malicious activity.įurther investigation found the CCleaner download server was hosting the backdoored app as far back as September 11. It has 2 billion downloads and claims to be getting 5 million extra a week, making the threat particularly severe, researchers at Cisco Talos warned. The affected app, CCleaner, is a maintenance and file clean-up software run by a subsidiary of anti-virus giant Avast. The tainted application allows for download of further malware, be it ransomware or keyloggers, with fears millions are affected. ![]() Other names may be trademarks of their respective owners.Users of Avast-owned security application CCleaner for Windows have been advised to update their software immediately, after researchers discovered criminal hackers had installed a backdoor in the tool. The Android robot is reproduced or modified from work created and shared by Google and used according to terms described in the Creative Commons 3.0 Attribution License. Microsoft and the Window logo are trademarks of Microsoft Corporation in the U.S. Alexa and all related logos are trademarks of, Inc. App Store is a service mark of Apple Inc. Mac, iPhone, iPad, Apple and the Apple logo are trademarks of Apple Inc., registered in the U.S. ![]() Android, Google Chrome, Google Play and the Google Play logo are trademarks of Google, LLC. Firefox is a trademark of Mozilla Foundation. or its affiliates in the United States and other countries. NortonLifeLock, the NortonLifeLock Logo, the Checkmark Logo, Norton, LifeLock, and the LockMan Logo are trademarks or registered trademarks of NortonLifeLock Inc. LifeLock identity theft protection is not available in all countries.Ĭopyright © 2022 NortonLifeLock Inc. The Norton and LifeLock Brands are part of NortonLifeLock Inc. Hopefully that won't change when CCleaner Portable v6.1 is released next month.ĭell Inspiron 5584 * 64-bit Win 10 Pro v21H2 build 19044.1706 * Firefox v100.0.0 * Microsoft Defender v.5-0.5 * Malwarebytes Premium v4.5.9.198- * Macrium Reflect Free v * CCleaner Free Portable v I have a 64-bit OS and use the default English interface, and when I unzip the Portable ccsetupxxx.zip file on a removable USB thumb drive there are only three essential files I need to keep - CCleaner64.exe and portable.dat plus my "old" ccleaner.ini file (which stores the custom configuration settings I made in my previous CCleaner Portable versions). According to nukecad's 1 post in CCleaner Portable Not Available the programming changes in v6.0 caused " a few issues" and a Portable version of CCleaner v6.x likely won't be posted on the official builds page until v6.1 is released next month. I still like the Custom Clean function of CCleaner for disk cleaning and use the Portable (zipped) version to avoid having to install all the unnecessary bloat on my system, but if you try to download CCleaner Portable from the builds page at you are currently offered the previous ccsetup592.zip file. Recall that NortonLifeLock acquired Avira in 2020 and then acquired Avast (including its subsidiary Piriform, the original creators of CCleaner) in 2021, so I expect we'll see more of these "system optimizers" and other bloatware developed by Avira and Avast continue to creep into both CCleaner and NortonLifeLock products in the future. Information about the new Performance Optimizer in v can be found at Our CCleaner 6 App is Out Now With a New, Patented Performance Optimizer and Improved Software Updater. A change log for this major v6.0 release is available at.
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