A recent cybersecurity threat has emerged, with Microsoft warning of a new campaign that distributes malicious Visual Basic Script (VBS) files via WhatsApp messages.

The campaign, which started in late February 2026, uses these VBS scripts to initiate a multi-stage infection chain, ultimately allowing threat actors to establish persistence and gain remote access to compromised Windows systems.

The exact social engineering tactics used by the attackers to trick users into executing the malicious scripts are currently unknown, but the use of WhatsApp as a delivery mechanism highlights the importance of being cautious when receiving files from unknown sources.

This campaign underscores the need for Windows users to be vigilant and ensure their systems are up-to-date with the latest security patches, including any available fixes for known vulnerabilities such as CVEs related to UAC bypass techniques.

As this threat continues to evolve, it is essential for users to prioritize cybersecurity best practices, including avoiding suspicious links and files, using antivirus software, and regularly updating their operating systems and applications.

By taking proactive measures to protect themselves, Windows users can significantly reduce the risk of falling victim to this and other malware campaigns, and help prevent the spread of these types of threats.

Source: Original Article