Ccleaner is a well-known junk file cleaning tool. At the end of September, it was suddenly blocked by Microsoft , and it was not allowed to publish related content. Now the reason has been found, that is, CCleaner's parent company and the famous Czech anti-software AVAST was hacked and CCleaner was tampered with.
CCleaner is a well-known cleanup tool that has gained fame since the XP era, with over 130 million installations worldwide. In 2017, AVAST, a well-known Czech anti-virus company, acquired Piriform, the parent company of CCleaner, and announced a strong alliance.
However, after the acquisition of CCleaner, AVAST has a lot of troubles. Because this software is too famous, it has been hacked many times. It was breached once in 2017, resulting in 2.27 million users installing the tampered CCleaner software and infecting at least 1.64 million units. computer. After
was attacked in 2017, AVAST had to change the architecture of CCleaner software to improve security, but it still failed to stop hackers. In September, CCleaner was breached again by .
According to the official AVAST statement, the hacker used the temporary credentials of company employees to invade the AVAST network this time, and this account did not have multi-step verification. Although there is no domain management authority, the hacker leapfrogged and raised the authority, which led to the account gaining administrative authority and eventually breached the AVAST network .
However, the hacker’s attack did not bring serious consequences and failed to tamper with the CCleaner software. AVAST discovered the problem in time and took measures. They re-signed the CCleaner software and pushed it to users through automatic updates on October 15.
In addition, AVAST has also revoked previous certificates to ensure that CCleaner users will not be affected.
Because of this incident, AVAST also closed temporary credentials, disabled and recharged all internal user credentials.
PS: Although CCleaner is not bad, it is not recommended now. This foreign software has also been rogue. I recommend DISM++ software, which has much more powerful functions than this.
