Microsoft Discloses Windows Clipper Malware Using USB LNK Worm and Tor C2

Avatar Of Asad IjazAsad Ijaz ·Jun 21, 2026 ·2 min read
Microsoft Discloses Windows Clipper Malware Using Usb Lnk Worm And Tor C2

Microsoft has announced details about a new malware campaign targeting Windows users, dubbed “Windows Clipper.” The attack uses a USB LNK worm and a Tor-based command-and-control (C2) infrastructure to infiltrate and compromise systems.

The Windows Clipper Malware Campaign

According to Microsoft’s security researchers, the Windows Clipper malware is designed to exploit a vulnerability in the way Windows handles LNK (shortcut) files on USB drives. When a user inserts an infected USB drive, the malware is automatically executed, allowing the attackers to gain a foothold on the target system.

Tor-Based Command-and-Control (C2)

The Windows Clipper malware establishes a connection to a Tor-based command-and-control (C2) server, which the attackers use to issue further instructions and exfiltrate data from the compromised machines. This Tor-based architecture makes it more challenging for security researchers and law enforcement to trace the origin and activities of the malware campaign.

Potential Impact and Mitigation Strategies

Microsoft has warned that the Windows Clipper malware could be used to steal sensitive information, deploy additional malware, or even gain remote control of infected systems. To mitigate the threat, the company recommends that users exercise caution when using USB drives, keep their systems up-to-date with the latest security patches, and consider using antivirus or endpoint protection solutions that can detect and block such threats.

Ongoing Investigations and Collaboration

Microsoft is working closely with international law enforcement agencies and cybersecurity organizations to investigate the Windows Clipper malware campaign and disrupt the attackers’ infrastructure. The company has also pledged to provide regular updates and guidance to help users and organizations stay protected against this emerging threat.

Avatar Of Asad Ijaz

Lead Networking Architect and Editor at NetworkUstad. BS in Computer Networks and Security, CCNP and CCNA certified, with 11+ years of experience in enterprise network design, implementation, and troubleshooting. Writes practical tutorials on routing, IPv4 management, network automation, and security fundamentals.