The free version of CCleaner must be manually updated. While CCleaner is a very popular application, claiming 5 million downloads per week, this infected version would not have hit all of those users. Yung notes that that Piriform is updating all versions of its software up to non-malicious versions, but users can download a new copy here.
Those without the option to restore a backup should check if their CCleaner is 5.33. At the very least, make sure your own anti-virus software is up to date. 15, as your system may have been compromised since then. If you're on version 5.33 of CCleaner, which states its version number in its top left corner of its interface, your best bet may be to roll back your Windows system to a snapshot from before Aug.
#Ccleaner malware name update#
The Mac and Android versions of CCleaner do not appear to have been affected.Īn Avast spokeswoman told Reuters that 2.27 million users had downloaded the infected version of CCleaner, and that 5,000 installations of CCleaner Cloud had received the tainted update to that software. The infected version of CCleaner Cloud was made available on Aug. 15, and its cleaned version, version 5.34, on Sept. The infected version of CCleaner, 5.33 for Windows, was made available for download on Aug. This data transfer from CCleaner appeared to be the malware, identified as Floxif, phoning home to its command-and-control servers. 12, which led to Piriform taking the server down. In a blog post from Paul Yung, VP of Products for Piriform, the exec noted that his company saw suspicious activity from "unknown IP address receiving data from software found in version of CCleaner" on Sept. Before that, though, Piriform already knew something fishy was going on. MORE: Best Antivirus Protection for PC, Mac and AndroidĪ report on this attack from technology company Cisco's Talos Intelligence blog notes that infected versions of CCleaner were observed "as recently as September 11," and that they alerted Avast of the issue on September 13.
#Ccleaner malware name install#
Following either (or both) of those steps, visit Piriform's site to download and install the latest, clean version of CCleaner. 15 snapshot of your system, or run a malware scan.
15 and you're running 32-bit Windows, you may be infected.