Technology

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Unit 42 researchers recently found that Stately Taurus abused the popular Visual Studio Code software in espionage operations targeting government entities in Southeast Asia. Stately Taurus is a Chinese advanced persistent threat (APT) group that carries out cyberespionage attacks.

This threat actor used Visual Studio Code’s embedded reverse shell feature to gain a foothold in target networks. This is a relatively new technique that a security researcher discovered in 2023. According to our telemetry, this is the first time a threat actor used it in the wild.

We assess that this campaign is a direct continuation of a previously reported campaign that we attributed with moderate-high confidence to Stately Taurus. We come to this conclusion based on consideration of the TTPs, timeline and victimology targeting government entities in Southeast Asia.

We will also discuss a connection between the Stately Taurus activity and a second cluster of activity occurring simultaneously in the same targeted environment that leveraged the ShadowPad backdoor.

Palo Alto Networks customers receive better protection against threats discussed in this article through the following products and services, which we detail further in the Conclusion section:

• Advanced WildFire
• Advanced URL Filtering
• Advanced DNS Security
• Cortex XDR
• Cortex XSIAM
• Prisma Cloud Compute