Deno

Cybersecuritynews •Tushar Subhra Dutta • June 17, 2026

A new strain of malware has emerged that combines two well-known social engineering tactics into one effective attack chain. Researchers have uncovered a Remote Access Trojan built on Deno, an unconventional JavaScript runtime, being deployed against employees through email flooding and fake Microsoft Teams calls. The attack overwhelms targets and then offers a false sense […]

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Deno-Based RAT Leveraging Teams Impersonation Targets Employees A new Remote Access Trojan (RAT) utilizing the Deno JavaScript runtime has been deployed against employees through email flooding and fake Microsoft Teams calls. The attack combines social engineering tactics to overwhelm targets, leading to the download of a malicious archive. The malware operates via multiple modular JavaScript files and uses specific Deno permission flags for command and control communication. Detection occurred during post-exploitation activities rather than initial execution. Organizations are advised to monitor for suspicious Deno executions and Teams impersonation alerts. The attack's scope appears to be significant, affecting multiple organizations. Immediate isolation of affected hosts is recommended upon detection. 2 sources 65

Deno

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Extracted Entities

Attack Types (2)

Tools (1)