![ccleaner malware called ccleaner malware called](https://dataerasernet.files.wordpress.com/2018/09/ccleaner-mac-1.png)
It then delays for 601 seconds before continuing operations. First, it records the current system time on the infected system. For example, it uses a clever time skew detection mechanism. The first stage of the malware is very paranoid and extremely cautious. It appears that behind this campaign was a sophisticated attacker, specifically targeting IT companies using a supply chain attack to compromise a vast number of victims, persistently.
Ccleaner malware called software#
Since the binary was digitally signed using a valid certificate issued to the original software developer, it is likely that an external attacker compromised a portion of Avast’s development or build environment, and leveraged that access to insert malware into the CCleaner build that was released and hosted by the organization.
![ccleaner malware called ccleaner malware called](https://www.myantispyware.com/wp-content/uploads/2017/03/Advance-System-Care.jpg)
It includes functionality such as cleaning of temporary files, analyzing the system to determine ways in which performance can be optimized and provides a more streamlined way to manage installed applications. For about a month, from mid-August until September 12, the tool’s latest official release (v5.33) also contained a multi-stage malware payload hidden within the installation of CCleaner.ĬCleaner is an application that allows users to perform routine maintenance on their systems. On September 18, Cisco’s Talos team published that Avast’s recently acquired subsidiary Piriform was leveraged to deliver malware to unsuspecting victims via its IT utility tool, CCleaner.