Ransomware is becoming a troubling trend, and if hackers are able to infect infect update servers they can spread malware to as many machines as possible.Hackers have compromised popular file cleanup tool CCleaner and may have been using it to inject malware into potentially millions of home personal computers over the last month.
CCLEANER CLOUD MALWARE SOFTWARE
For example, earlier this year, it was found that a breach at Ukranian software company MeDoc was responsible for the NotPetya ransomware. While Avast got in front of the issue and resolved it without incident, smaller companies might not be able to react so quickly. The impact on you at home: While users within the target area shouldn’t see any impact from this attempted attack, it’s still a scary notion. You’ll also want to perform an antivirus scan on your computer. Previous releases are also still available on the company’s website, but the infected version has been removed from the company’s servers. Users can download CCleaner 5.34 from Avast’s website if they haven’t already done so.
CCLEANER CLOUD MALWARE CODE
The intent of the attack is unclear at this time, though Avast says the code was able to collect information about the local system. Most reassuringly, Yung states that Avast was seemingly able to disarm the threat before it was able to do any harm. Additionally, the company is moving all users to the latest version of the software, which is already available on the company’s website (though the release notes only mention “minor big fixes.”) He also says Piriform has shut down the hackers’ access to other servers. Yung assures customers that the threat has been resolved and the “rogue server” has been taken down. The affected version released on August 15. Yung says the attack was limited to CCleaner and CCleaner Cloud on 32-bit Windows systems.
12 and had taken the appropriate action even before Cisco Talos notified them of their discovery.
In a blog post by vice president of products Paul Yung, he states that the company identified the attack on Sept. 13, Cisco Talos found that the official download of the free versions of CCleaner 5.33 and CCleaner Cloud also contained “a malicious payload that featured a Domain Generation Algorithm as well as hardcoded Command and Control functionality.” What that means is that a hacker infiltrated Avast Piriform’s official build somewhere in the development process build to plant malware designed to steal users’ data.Ĭisco Talon suspects that the attacker “compromised a portion of (CCleaner’s) development or build environment and leveraged that access to insert malware into the CCleaner build that was released and hosted by the organization.” As such, customers’ personal information was not at risk.Īccording to Avast, the malware doesn’t seem to have affected any machines in the wild. In an in-depth probe of the popular optimization and scrubbing software, Cisco Talos has discovered a malicious bit of code injected by hackers that could have affected more than 2 million users who downloaded the most recent update. It seems that CCleaner, one of PCWorld’s recommendations for the best free software for new PCs, might not have been keeping your PC so clean after all.
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