CoolClient is a backdoor family attributed to the HoneyMyte APT group (also known as Mustang Panda) that has been used in their cyber-espionage campaigns targeting organizations across Asia and Russia. It supports such capabilities as keylogging, clipboard theft, credential harvesting, file management, system reconnaissance, and plugin-based extensions.
Since its first public disclosure by Sophos in 2022 and subsequent analysis by Trend Micro in 2023, CoolClient has continued to evolve. In 2025, we analyzed a newer variant that introduced clipboard theft and HTTP traffic interception for credential harvesting.
Read more…
Source: Kaspersky
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- Apple IDs Targeted in US Smishing Campaign
July 2, 2024
Phishing actors continue to target Apple IDs due to their widespread use, which offers access to a vast pool of potential victims. These credentials are highly valued, providing control over devices, access to personal and financial information, and potential revenue through unauthorized purchases. Additionally, Apple’s strong brand reputation makes users more susceptible to trusting deceptive communications ...
- Vulnerabilities in PanelView Plus devices could lead to remote code execution
July 2, 2024
Microsoft discovered and responsibly disclosed two vulnerabilities in Rockwell Automation PanelView Plus that could be remotely exploited by unauthenticated attackers, allowing them to perform remote code execution (RCE) and denial-of-service (DoS). The RCE vulnerability in PanelView Plus involves two custom classes that can be abused to upload and load a malicious DLL into the device. The ...
- Prudential Financial data breach impacts 2.5 million people
July 2, 2024
In February 2024, Prudential Financial reported it had fallen victim to a ransomware attack. The attack was discovered one day after it started, but not before some 2.5 million people had been impacted by the resulting data breach. As one of the largest insurance companies in the US, Prudential employs 40,000 people worldwide and reported revenues ...
- Cisco Releases Advisory for Exploited Vulnerability in NX-OS software
July 2, 2024
Cisco has released a security advisory for a vulnerability in the command line interface (CLI) of the NX-OS software in Nexus series switches, which are modular and fixed port network switches designed for data centres. The command injection vulnerability known as CVE-2024-20399 has a CVSSv3 score of 6.0 and is rated at Medium by Cisco. An ...
- FBI: Renewable energy systems vulnerable to cyber attacks
July 2, 2024
The FBI has issued an official alert to the public about the potential for malicious cyber actors to disrupt power generation, steal intellectual property, or hold critical information for ransom within the U.S. renewable energy sector. The warning comes as federal and local governments increasingly advocate for renewable energies, expanding the industry and creating more opportunities ...
- Personal data stolen from unsuspecting airport visitors and plane passengers in “evil twin” attacks
July 1, 2024
The Australian Federal Police (AFP) have charged a man for setting up fake free WiFi access points in order to steal personal data from people. The crime was discovered when an airline reported a suspicious WiFi network identified by its employees during a domestic flight. When the alleged perpetrator landed at Perth airport, his bags were ...