Chinese Hackers Exploited Sophos Firewall Zero-Day Flaw to Target South Asian Entity

A sophisticated Chinese advanced persistent threat (APT) actor exploited a critical security vulnerability in Sophos’ firewall product that came to light earlier this year to infiltrate an unnamed South Asian target as part of a highly-targeted attack. “The attacker implement[ed] an interesting web shell backdoor, create[d] a secondary form of persistence, and ultimately launch[ed] attacks…

BlackCat Ransomware Gang Targeting Unpatched Microsoft Exchange Servers

Microsoft is warning that the BlackCat ransomware crew is leveraging exploits for unpatched Exchange server vulnerabilities to gain access to targeted networks. Upon gaining an entry point, the attackers swiftly moved to gather information about the compromised machines, followed by carrying out credential theft and lateral movement activities, before harvesting intellectual property and dropping the…

High-Severity RCE Vulnerability Reported in Popular Fastjson Library

Cybersecurity researchers have detailed a recently patched high-severity security vulnerability in the popular Fastjson library that could be potentially exploited to achieve remote code execution. Tracked as CVE-2022-25845 (CVSS score: 8.1), the issue relates to a case of deserialization of untrusted data in a supported feature called “AutoType.” It was patched by the project maintainers…

High-Severity RCE Vulnerability Reported in Popular Fastjson Library

Cybersecurity researchers have detailed a recently patched high-severity security vulnerability in the popular Fastjson library that could be potentially exploited to achieve remote code execution. Tracked as CVE-2022-25845 (CVSS score: 8.1), the issue relates to a case of deserialization of untrusted data in a supported feature called “AutoType.” It was patched by the project maintainers…

A New Golang-based Peer-To-Peer Botnet Targeting Linux Servers

A new Golang-based peer-to-peer (P2P) botnet has been spotted actively targeting Linux servers in the education sector since its emergence in March 2022. Dubbed Panchan by Akamai Security Research, the malware “utilizes its built-in concurrency features to maximize spreadability and execute malware modules” and “harvests SSH keys to perform lateral movement.” The feature-packed botnet, which…