Saturday, July 13, 2024

CCleaner Got Hacked & Used For Distributing Malware that Infected 2 Million Users

A Most Famous Sofware  CCleaner Hacked and Distributing Floxif Malware from Download server of Leading Anti-Virus Vendor AVAST and more than 2 million Users Infected by this Malware.

CCleaner is a subsidy of AVAST that released legitimate signed version of CCleaner 5.33 with a Malicious payload that rode on top of the installation of CCleaner.

CCleaner is an application that allows users to perform routine maintenance on their systems. 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.

CCleaner Estimated Downloads around 2 Billion by November of 2016  that meant to be one of the most Widely  Downloaded Software lists.

Also Read   Vevo Got Hacked by OurMine After Employee Questioned their Abilities

How Does CCleaner Hacked and Infect the Malware

A New exploit detection technology used by Cisco that conducted a Beta Test for their Customer that revealed a New Executable being Served in this Process.

Cisco Talos Identified by further Analysis that the executable in question was the installer for CCleaner v5.33, which was being delivered to endpoints by the legitimate CCleaner download servers.

CCleaner Hacked
According to Cisco Talos, even though the downloaded installation executable was signed using a valid digital signature issued to Piriform, CCleaner was not the only application that came with the download.

This Malware included the 32 bit Binary has featured a Domain Generation Algorithm (DGA) as well as hardcoded Command and Control (C2) functionality During the installation of CCleaner 5.33.

Later, Floxif Malware gathers information such as computer name, a list of installed software, a list of running processes, MAC addresses for the first three network interfaces, and unique IDs infected systems and sends it back to its C&C server.

This version was signed using a valid certificate that was issued to Piriform Ltd by Symantec and is valid through 10/10/2018.

Malware Operation Performs 32-bit CCleaner v5.33 binary included with the legitimate CCleaner v5.33 installer, to call to the code.

CCleaner Hacked

Malware Operation FLow

“This was done to redirect code execution flow within the CCleaner binary to the malicious code prior to continuing with the normal CCleaner operations. The code that is called is responsible for decrypting data which contains the two stages of the malicious payload, a PIC (Position Independent Code) PE loader as well as a DLL file that effectively functions as the malware payload.”

This Help to Attacker to Evade the Detection from the malicious DLL that is being Executed.

If the user executing the malware does have administrative privileges on the infected system, SeDebugPrivilege is enabled for the process and Once the aforementioned activities have been performed, the malware then begins profiling the system and gathering system information which is later transmitted to the C2 server. Cisco Said.


Latest articles

mSpy Data Breach: Millions of Customers’ Data Exposed

mSpy, a widely used phone spyware application, has suffered a significant data breach, exposing...

Advance Auto Parts Cyber Attack: Over 2 Million Users Data Exposed

RALEIGH, NC—Advance Stores Company, Incorporated, a prominent commercial entity in the automotive industry, has...

Hackers Using ClickFix Social Engineering Tactics to Deploy Malware

Cybersecurity researchers at McAfee Labs have uncovered a sophisticated new method of malware delivery,...

Coyote Banking Trojan Attacking Windows Users To Steal Login Details

Hackers use Banking Trojans to steal sensitive financial information. These Trojans can also intercept...

Hackers Created 700+ Fake Domains to Sell Olympic Games Tickets

As the world eagerly anticipates the Olympic Games Paris 2024, a cybersecurity threat has...

Japanese Space Agency Spotted zero-day via Microsoft 365 Services

The Japan Aerospace Exploration Agency (JAXA) has revealed details of a cybersecurity incident that...

Top 10 Active Directory Management Tools – 2024

Active Directory Management Tools are essential for IT administrators to manage and secure Active...
BALAJI is an Ex-Security Researcher (Threat Research Labs) at Comodo Cybersecurity. Editor-in-Chief & Co-Founder - Cyber Security News & GBHackers On Security.

Free Webinar

Low Rate DDoS Attack

9 of 10 sites on the AppTrana network have faced a DDoS attack in the last 30 days.
Some DDoS attacks could readily be blocked by rate-limiting, IP reputation checks and other basic mitigation methods.
More than 50% of the DDoS attacks are employing botnets to send slow DDoS attacks where millions of IPs are being employed to send one or two requests per minute..
Key takeaways include:

  • The mechanics of a low-DDoS attack
  • Fundamentals of behavioural AI and rate-limiting
  • Surgical mitigation actions to minimize false positives
  • Role of managed services in DDoS monitoring

Related Articles