Piriform ccleaner download

July 19, 2017 5:33 AM CCleaner for AndroidImage Credit: Paul Sawers / VentureBeat Join our daily and weekly newsletters for the latest updates and exclusive content on industry-leading AI coverage. Learn MoreSecurity software giant Avast has acquired Piriform, the U.K.-based company behind CCleaner — one of the most popular system cleaners on desktop and mobile.Founded out of London in 2004, Piriform is a privately held company that makes a number of utility programs and optimization tools for Windows, Mac, and Android. The best-known of these products is CCleaner, which helps Windows, Mac, and Android users delete temporary or otherwise unwanted files left by other software, thus freeing up resources on the machine. Piriform said that CCleaner is used by 130 million people, including 15 million on Android.Founded in 1988, Avast is one of the best-known brands in the antivirus security realm and recently snapped up rival AVG in a $1.3 billion deal. This aquisition created a new entity with more than 400 million users — the foremost of which is the U.S., with around 60 million users.Clean upAbove: PiriformThe Piriform acquisition makes sense for Avast, given the popularity of CCleaner and Avast’s clear intention to become a colossus in the security and system performance realm. Indeed, Avast already offers two similar products — Avast Cleanup and AVG TuneUp, the latter of which it took on as part of last year’s AVG deal. Avast will continue to offer all three standalone products under their own brands.“We see many commonalities between CCleaner and Avast, allowing for great new products for our user bases,” said Avast CEO Vince Steckler, in a press release. “Avast and CCleaner are the top two downloaded products on popular download sites. They are both known by advanced users as focused on performance, so we believe there will be a great interest from our CCleaner customers in using Avast security products and vice versa. In today’s connected world, it’s all about speed and high performance, and with Piriform’s robust technology we can address this need perfectly. We look forward to working with the Piriform team to grow the business

Around 2.27 million users of Piriform's popular CCleaner security app have been advised to update the application—a result of sophisticated hacker-hidden malware. Discovered by researchers at Cisco's Talos division, hackers are thought to have run code from a remote IP address using a backdoor. Piriform, owned by security firm Avast, says up to three percent of its customers could have been affected after using CCleaner 5.33 (offered for download between August 15 and September 12), and CCleaner Cloud 1.07 (launched on August 24). "The compromise could cause the transmission of non-sensitive data (computer name, IP address, list of installed software, list of active software, list of network adapters) to a third party computer server in the USA," said Piriform in this blog post. "We have no indications that any other data has been sent to the server… We are continuing to investigate how this compromise happened, who did it, and why. We are working with US law enforcement in their investigation. A more technical description of the issue is on our Piriform blog."In a separate post, Talos reports: "In analyzing DNS-based telemetry data related to this attack, Talos identified a significant number of systems making DNS requests attempting to resolve the domains associated with the aforementioned DGA domains. As these domains have never been registered, it is reasonable to conclude that the only conditions in which systems would be attempting to resolve the IP addresses associated with them is if they had been impacted by this malware."Piriform adds that it's also working with third-party sites to remove the compromised versions of CCleaner, and that all users should update to its latest CCleaner 5.34 version right away. Keep up to date with the most important stories and the best deals, as picked by the PC Gamer team.

If you have downloaded or updated CCleaner application on your computer between August 15 and September 12 of this year from its official website, then pay attention—your computer has been compromised.CCleaner is a popular application with over 2 billion downloads, created by Piriform and recently acquired by Avast, that allows users to clean up their system to optimize and enhance performance.Security researchers from Cisco Talos discovered that the download servers used by Avast to let users download the application were compromised by some unknown hackers, who replaced the original version of the software with the malicious one and distributed it to millions of users for around a month.This incident is yet another example of supply chain attack. Earlier this year, update servers of a Ukrainian company called MeDoc were also compromised in the same way to distribute the Petya ransomware, which wreaked havoc worldwide.Avast and Piriform have both confirmed that the Windows 32-bit version of CCleaner v5.33.6162 and CCleaner Cloud v1.07.3191 were affected by the malware.Detected on 13 September, the malicious version of CCleaner contains a multi-stage malware payload that steals data from infected computers and sends it to attacker's remote command-and-control servers.Moreover, the unknown hackers signed the malicious installation executable (v5.33) using a valid digital signature issued to Piriform by Symantec and used Domain Generation Algorithm (DGA), so that if attackers' server went down, the DGA could generate new domains to receive and send stolen information."All of the collected information was encrypted and encoded by base64 with a custom