PYSA Ransomware Backdoors Education Orgs Using ChaChi Malware
PYSA Ransomware Backdoors Education Orgs Using ChaChi Malware The PYSA ransomware gang has been using a remote access Trojan (RAT) dubbed ChaChi to backdoor the systems of healthcare and education organizations and steal data that later gets leveraged in double extortion ransom schemes. ChaChi is a custom Golang-based RAT malware developed in early 2020 deployed by PYSA