- #CCLEANER MALWARE SECONDS UPDATE#
- #CCLEANER MALWARE SECONDS 32 BIT#
- #CCLEANER MALWARE SECONDS CODE#
- #CCLEANER MALWARE SECONDS WINDOWS 7#
- #CCLEANER MALWARE SECONDS DOWNLOAD#
#CCLEANER MALWARE SECONDS DOWNLOAD#
Since the only change I've made to my machine was the installation of CCleaner, it appears Avast AV installation file may have piggybacked on the CCleaner 3.34 (32-bit) download as the date and time of the installation are nearly identical.
#CCLEANER MALWARE SECONDS UPDATE#
When I initiated a reboot – unrelated to the new CCleaner update since it's not required – Avast anti-virus software was automatically (and mysteriously) installed after the reboot.
#CCLEANER MALWARE SECONDS WINDOWS 7#
Last Tuesday (Sept 12), I downloaded the most recent version of the 32-bit CCleaner (v5.34) on a Windows 7 (32-bit) machine. Interesting news about CCleaner, which makes me wonder after an incident that occurred recently. Further details may be found at the report from Cisco Talos and at Bleeping Computer.
AVAST intends to add a new signature to its antivirus scanners and will inform affected users. AVAST says, that 3 % of all CCleaner installs are effected – but this are 2.27 million affected machines. Newer versions of CCleaner are free of malware. The malware has been found in CCleaner version and CCleaner Cloud Version.
#CCLEANER MALWARE SECONDS 32 BIT#
According to the blog post, only 32 bit Windows version has been affected. Piriform has confirmed this incident today within a blog post. The installer was signed with a valid certificate. Talos assumes that the server through which the CCleaner installer was distributed was compromised. This happened from Augwith CCleaner 5.33 and from Augwith CCleaner Cloud 1.07.
#CCLEANER MALWARE SECONDS CODE#
The malware then retrieved additional code from the malware server and transmitted data such as the IP address, computer name, installed software and existing network adapters to a server in the USA. This was published by a new report vom Cisco Talos. and Septemhas been delivered with an infected Floxif malware installer. Some versions of CCleaner app, downloaded between August 15. Some time ago, CCleaner was taken over by the Czech security company AVAST. This free system cleaner for Windows is often used by many users. "These findings also support and reinforce our previous recommendation that those impacted by this supply chain attack should not simply remove the affected version of CCleaner or update to the latest version, but should restore from backups or reimage systems to ensure that they completely remove not only the backdoored version of CCleaner but also any other malware that may be resident on the system," the researchers say.įor those who are unaware, the Windows 32-bit version of CCleaner v and CCleaner Cloud v were affected by the malware, and affected users should update the software to version 5.34 or higher.My credo is: keep your fingers off to system cleaners – but many users swear at CCleaner from Piriform. So, affected companies that have had their computers infected with the malicious version of CCleaner are strongly recommended to fully restore their systems from backup versions before the installation of the tainted security program. Just removing the Avast's software application from the infected machines would not be enough to get rid of the CCleaner second stage malware payload from their network, with the attackers' still-active C2 server. Removing Malicious CCleaner Version would Not Help However, this evidence alone is not enough for attribution.Ĭisco Talos researchers also said that they have already notified the affected tech companies about a possible breach. "The malware injected into #CCleaner has shared code with several tools used by one of the APT groups from the #Axiom APT 'umbrella'," tweeted director of Global Research and Analysis Team at Kaspersky Lab.Ĭisco researchers also note that one configuration file on the attacker's server was set for China's time zone, which suggests China could be the source of the CCleaner attack.
The researchers believe the secondary malware was likely intended for industrial espionage.ĬCleaner Malware Links to Chinese Hacking GroupĪccording to the researchers from Kaspersky, the CCleaner malware shares some code with the hacking tools used by a sophisticated Chinese hacking group called Axiom, also known as APT17, Group 72, DeputyDog, Tailgater Team, Hidden Lynx or AuroraPanda. The CCleaner hackers specifically chose these 20 machines based upon their Domain name, IP address, and Hostname.
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