Security researchers have uncovered a sophisticated malware campaign spanning seven years, where threat actors behind AppSuite-PDF and PDF Editor applications systematically abused code-signing certificates to legitimize their malicious software. The actors, tracked under the malware family name BaoLoader, have utilized at least 26 code-signing certificates obtained through fraudulent business registrations, primarily targeting users seeking PDF […] The post Actors Behind AppSuite-PDF and PDF Editor Used 26 Code-Signing Certificates to Make Software Appear Legitimate appeared first on Cyber Security News.

DarkCloud Stealer has recently emerged as a potent threat targeting financial organizations through convincing phishing campaigns. Adversaries employ weaponized RAR attachments masquerading as legitimate documents to deliver a multi-stage JavaScript-based payload. Upon opening the archive, victims execute a VBE script that leverages Windows Script Host to initiate a PowerShell downloader hidden in innocuous-seeming image files. […] The post DarkCloud Stealer Attacking Financial Companies With Weaponized RAR Attachments appeared first on Cyber Security News.

Emerging in early September 2025, the Yurei ransomware has swiftly drawn attention for its novel combination of Go-based execution and ChaCha20 encryption. First documented on September 5 when a Sri Lankan food manufacturer fell victim, the threat actor behind Yurei adopted a double-extortion model: encrypting files while exfiltrating sensitive data for additional leverage. Within days, […] The post New Yurei Ransomware With PowerShell Commands Encrypts Files With ChaCha20 Algorithm appeared first on Cyber Security News.