New Sophisticated Multi-Stage Malware Campaign Weaponizes VBS Files to Execute PowerShell Script

Security researchers have uncovered a sophisticated malware campaign utilizing heavily obfuscated Visual Basic Script (VBS) files to deploy multiple types of remote access trojans (RATs). The campaign, discovered in June 2025, involves a cluster of 16 open directories containing obfuscated VBS files, all sharing the filename “sostener.vbs” (Spanish for “sustain”). These files serve as the […]

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