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:
- 10 new vulnerabilities disclosed by Talos, including use-after-free issue in Google Chrome
September 27, 2023
Cisco Talos disclosed 10 vulnerabilities over the past two weeks affecting a range of software, including the popular Google Chrome web browser. Attackers could exploit these vulnerabilities to carry out a variety of attacks, in some cases gaining the ability to execute remote code on the targeted machine. Read more… Source: Cisco Talos
- Czechia: University of Defence victim of cyber-attack
September 27, 2023
Czechia’s University of Defence was the victim of a cyber-attack, with hackers evidently stealing data from the institution’s rector, iRozhlas.cz reported on Wednesday. The news website said the Municipal State Prosecutor’s Office in Brno was looking into the matter. A spokesperson for the National Cyber and Information Security Agency said it would not comment on the ...
- NSA, FBI, CISA, and Japanese Partners Release Advisory on PRC-Linked Cyber Actors
September 27, 2023
Today, the U.S. National Security Agency (NSA), Federal Bureau of Investigation (FBI), and Cybersecurity and Infrastructure Security Agency (CISA), along with the Japan National Police Agency (NPA) and the Japan National Center of Incident Readiness and Strategy for Cybersecurity (NISC) released joint Cybersecurity Advisory (CSA) People’s Republic of China-Linked Cyber Actors Hide in Router Firmware. The ...
- A Ransomware Group Is Claiming They’ve Breached Sony’s Systems And Stolen Data
September 27, 2023
Although the claims of a data breach are still unverified, Sony has publicly acknowledged the situation and issued a statement to IGN which simply reads, “We are currently investigating the situation, and we have no further comment at this time.” It looks like Sony may have been victim of a breach resulting in the collection of ...
- Analysis of Generative AI Trends and ChatGPT Usage
September 26, 2023
The release of ChatGPT underscores the potential of artificial intelligence to revolutionize the daily operations of organizations. This paradigm shift is compelling businesses to reevaluate their conventional approaches and embrace the transformative capabilities offered by AI. Among the noteworthy facets of AI’s evolution, Large Language Models (LLMs) have emerged as a dominant force, reshaping user interactions ...
- CISA Releases Six Industrial Control Systems Advisories
September 26, 2023
CISA released six Industrial Control Systems (ICS) advisories on September 26, 2023. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-23-269-01 Suprema BioStar 2 ICSA-23-269-02 Hitachi Energy Asset Suite 9 ICSA-23-269-03 Mitsubishi Electric FA Engineering Software Read more… Source: U.S. Cybersecurity and Infrastructure Security Agency Related: CISA Adds Three Known Exploited Vulnerabilities to Catalog