Cybersecurity researchers have discovered a cluster of seven malicious npm packages targeting the Vite frontend tooling ecosystem as part of a software supply chain attack. The malicious package campaign, codenamed ViteVenom by Checkmarx, marks an expansion of ChainVeil, which was observed using an "unprecedented" four-tier blockchain-based command-and-control (C2) infrastructure spanning Tron, Aptos, and Binance Smart Chain to deliver a remote access trojan (RAT) capable reverse shell, credential harvesting, file exfiltration, and persistent backdoor injection. "This tactic makes disabling or destroying the C2 infrastructure extremely difficult," Checkmarx researcher Pavan Gudimalla said in an analysis published last month. The activity has been attributed to a threat actor named SuccessKey, with evidence of malicious activity detected as far back as February 27, 2026, when cryptocurrency wallets linked to ViteVenom were activated. While the typosquats published to npm in connection with ChainVeil masqueraded as libraries for Tailwind, Sass, ORM, and rate-limiting tools, the latest iteration specifically focuses on developers building applications using the Vite JavaScript and frontend build tool. The list of identified packages, published between June 29 and July 3, 2026, is below - - @uw010010/vite-tree (1070 Downloads) - @vite-tab/tab (289 Downloads) - @vite-ln/build-ts (252 Downloads) - @vite-mcp/vite-type (239 Downloads) - @vite-pro/vite-ui (200 Downloads) - @vitets/vite-ts (194 Downloads) - @vite-ts/vite-ui (176 Downloads) Another crucial difference between the two clusters is that, unlike ChainVeil's unscoped typosquats (e.g., "rate-limit-flexible"), ViteVenom makes use of scoped package names in an attempt to impersonate the "@vitejs/*" namespace and lend it a veneer of legitimacy. The main aspect that unites the two campaigns is the use of shared tier-2 infrastructure, which is used to deliver the RAT. Specifically, this involves the same Tron wallet and Aptos account addresses, which point to the same Binance Smart Chain (BSC) transaction leading to the malware. Like in the case of ChainVeil, the