Originally, CoolClient was able to profile and gather system and user details, and record keystrokes. It allowed Mustang panda to upload and delete files, run TCP tunneling and reverse-prosy listening ...
China-linked Mustang Panda used updated COOLCLIENT malware in 2025 espionage to steal data from government and telecom ...
The Chinese espionage threat group Mustang Panda has updated its CoolClient backdoor to a new variant that can steal login ...
This combination, along with other factors such as infrastructure and technical overlaps, helped the security sleuths ...
A cyberespionage group with links to China reportedly targeted U.S. government officials with phishing emails related to ...