Malicious code in devplatform-nx-react (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (9293216b770bf95ede58df5d7aee19ded2826ca8fc027b44896474319483bb07) The package advertises itself as 'reusable nx react components' but its index.js unconditionally requires _support.js, which fetches and executes an attacker-controlled binary on load. Hostnames are assembled at runtime from split character arrays to evade static analysis: HTTPS mirrors resolve to oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev, and oob-worker.cf103-070.workers.dev on Cloudflare Workers, with a DNS-TXT chunked fallback against sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru (a count is read from c.<domain>, then N base64 TXT chunks are reassembled into an executable). The downloaded payload is written to a temp path with a randomized name, chmodded 0755, and spawned detached via `spawn('/bin/sh', ['-c', fp+' &'])` on Unix or `cmd.exe /c start /b fp` on Windows. Comments and identifiers ('analytics_state', 'dotnet_diag_', 'telemetry', 'Cross-platform path resolution') act as cover for the loader. The dropper has no relation to the package's stated purpose, and no integrity check, pinning, or publisher-controlled source is present. ## Source: ghsa-malware (fbd835a40a29c30efae55e501f7cd7996179a8f41f2ec1ed67560580bc67a4a3) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
AI Analysis
Technical Summary
The devplatform-nx-react npm package at version 35.9.4 includes a malicious loader in its index.js that unconditionally requires a support script. This support script dynamically constructs hostnames to evade detection and downloads an attacker-controlled executable payload from Cloudflare Workers domains and fallback domains under wel1.ru. The payload is reconstructed from base64-encoded DNS TXT records, saved with a randomized filename in a temporary directory, permissioned to be executable, and then executed detached via shell commands on Unix or Windows. The code includes misleading comments and identifiers to disguise its true purpose. There is no integrity check, pinning, or trusted source validation for the downloaded payload, making this a supply chain compromise with remote code execution capabilities.
Potential Impact
This malicious package enables remote code execution on any system that installs and loads devplatform-nx-react version 35.9.4. The attacker-controlled payload can run arbitrary commands detached from the main process, potentially leading to full system compromise. Because the malicious code executes automatically on package load without user interaction, it poses a high risk to environments using this package.
Mitigation Recommendations
No official patch or remediation is currently documented. Users should immediately stop using devplatform-nx-react version 35.9.4 and remove it from their projects. Avoid installing this package until a trusted, verified version is released. Employ supply chain security best practices such as verifying package integrity and using trusted sources. Monitor for updates from the package maintainer or npm security advisories for any official fixes.
Malicious code in devplatform-nx-react (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (9293216b770bf95ede58df5d7aee19ded2826ca8fc027b44896474319483bb07) The package advertises itself as 'reusable nx react components' but its index.js unconditionally requires _support.js, which fetches and executes an attacker-controlled binary on load. Hostnames are assembled at runtime from split character arrays to evade static analysis: HTTPS mirrors resolve to oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev, and oob-worker.cf103-070.workers.dev on Cloudflare Workers, with a DNS-TXT chunked fallback against sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru (a count is read from c.<domain>, then N base64 TXT chunks are reassembled into an executable). The downloaded payload is written to a temp path with a randomized name, chmodded 0755, and spawned detached via `spawn('/bin/sh', ['-c', fp+' &'])` on Unix or `cmd.exe /c start /b fp` on Windows. Comments and identifiers ('analytics_state', 'dotnet_diag_', 'telemetry', 'Cross-platform path resolution') act as cover for the loader. The dropper has no relation to the package's stated purpose, and no integrity check, pinning, or publisher-controlled source is present. ## Source: ghsa-malware (fbd835a40a29c30efae55e501f7cd7996179a8f41f2ec1ed67560580bc67a4a3) Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The devplatform-nx-react npm package at version 35.9.4 includes a malicious loader in its index.js that unconditionally requires a support script. This support script dynamically constructs hostnames to evade detection and downloads an attacker-controlled executable payload from Cloudflare Workers domains and fallback domains under wel1.ru. The payload is reconstructed from base64-encoded DNS TXT records, saved with a randomized filename in a temporary directory, permissioned to be executable, and then executed detached via shell commands on Unix or Windows. The code includes misleading comments and identifiers to disguise its true purpose. There is no integrity check, pinning, or trusted source validation for the downloaded payload, making this a supply chain compromise with remote code execution capabilities.
Potential Impact
This malicious package enables remote code execution on any system that installs and loads devplatform-nx-react version 35.9.4. The attacker-controlled payload can run arbitrary commands detached from the main process, potentially leading to full system compromise. Because the malicious code executes automatically on package load without user interaction, it poses a high risk to environments using this package.
Mitigation Recommendations
No official patch or remediation is currently documented. Users should immediately stop using devplatform-nx-react version 35.9.4 and remove it from their projects. Avoid installing this package until a trusted, verified version is released. Employ supply chain security best practices such as verifying package integrity and using trusted sources. Monitor for updates from the package maintainer or npm security advisories for any official fixes.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-12726
- Osv Schema Version
- 1.7.4
- Ecosystems
- ["npm"]
Threat ID: 6a735738bf8831d53914a535
Added to database: 08/05/2026, 15:31:04 UTC
Last enriched: 08/05/2026, 16:32:13 UTC
Last updated: 09/07/2026, 22:29:39 UTC
Views: 20
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