Malicious code in devplatform-cli-plugin-lint (npm)
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (e8460a9cc2fce88e69d25156ea88612a5a67ffba26709ce88900d573e2f4b3ea) On require() of the package, index.js loads _bootstrap.js which selects a platform-specific asset path (linux_x64, linux_arm64, darwin, win32), downloads an opaque binary over HTTPS from one of four hardcoded Cloudflare Workers subdomains (oob-worker.cf100-*.workers.dev through cf103-*.workers.dev) with a DNS-TXT fallback channel resolving *.dl.wel1.ru hosts (sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru), writes it to /var/tmp or %TEMP% under a randomized name such as.cache_<hex> or dotnet_diag_<hex>.exe, chmods 0755 on Unix, and spawns it detached via /bin/sh -c or cmd.exe. Hostnames and dangerous API names (child_process, chmodSync) are reconstructed from split-string arrays via Array.join('') to evade static analysis. A secondary module lib/telemetry.js (81 KB) ships the same drop-and-execute primitives (base64 buffer decode, fs.chmodSync 0755, cp.spawn('/bin/sh', ['-c', filePath+' &'])) behind an 'analytics SDK' cover story. The package presents itself as a devplatform CLI lint plugin; the shipped code performs full-host remote code execution on library load. ## Source: ghsa-malware (ea105640a744e8157c32baaf4d5826923dbd99cafbdf4c5652d633368d0c85eb) 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-cli-plugin-lint package version 35.5.1 is malicious. On require(), it loads a bootstrap script that selects a platform-specific binary asset, downloads it over HTTPS from hardcoded Cloudflare Workers subdomains with a DNS-TXT fallback to *.dl.wel1.ru hosts, writes the binary to temporary storage with randomized filenames, sets executable permissions (chmod 0755 on Unix), and executes it detached via shell commands. The package uses obfuscation by reconstructing hostnames and dangerous API names from split-string arrays to evade detection. A secondary module mimics these drop-and-execute primitives under the guise of an analytics SDK. This results in full remote code execution on the host when the library is loaded.
Potential Impact
This malicious package enables an attacker to execute arbitrary code on the host system with the privileges of the process loading the package. This can lead to full system compromise, data theft, persistence, and further attacks. The execution is triggered simply by requiring the package, making it highly dangerous if included in a project.
Mitigation Recommendations
No official patch or remediation is currently documented. Users should immediately remove version 35.5.1 of devplatform-cli-plugin-lint from their projects and avoid using this package. Audit dependencies for this package and any transitive dependencies. Consider using trusted package sources and integrity verification mechanisms. Monitor vendor advisories for updates or official fixes. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Malicious code in devplatform-cli-plugin-lint (npm)
Description
--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (e8460a9cc2fce88e69d25156ea88612a5a67ffba26709ce88900d573e2f4b3ea) On require() of the package, index.js loads _bootstrap.js which selects a platform-specific asset path (linux_x64, linux_arm64, darwin, win32), downloads an opaque binary over HTTPS from one of four hardcoded Cloudflare Workers subdomains (oob-worker.cf100-*.workers.dev through cf103-*.workers.dev) with a DNS-TXT fallback channel resolving *.dl.wel1.ru hosts (sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru), writes it to /var/tmp or %TEMP% under a randomized name such as.cache_<hex> or dotnet_diag_<hex>.exe, chmods 0755 on Unix, and spawns it detached via /bin/sh -c or cmd.exe. Hostnames and dangerous API names (child_process, chmodSync) are reconstructed from split-string arrays via Array.join('') to evade static analysis. A secondary module lib/telemetry.js (81 KB) ships the same drop-and-execute primitives (base64 buffer decode, fs.chmodSync 0755, cp.spawn('/bin/sh', ['-c', filePath+' &'])) behind an 'analytics SDK' cover story. The package presents itself as a devplatform CLI lint plugin; the shipped code performs full-host remote code execution on library load. ## Source: ghsa-malware (ea105640a744e8157c32baaf4d5826923dbd99cafbdf4c5652d633368d0c85eb) 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-cli-plugin-lint package version 35.5.1 is malicious. On require(), it loads a bootstrap script that selects a platform-specific binary asset, downloads it over HTTPS from hardcoded Cloudflare Workers subdomains with a DNS-TXT fallback to *.dl.wel1.ru hosts, writes the binary to temporary storage with randomized filenames, sets executable permissions (chmod 0755 on Unix), and executes it detached via shell commands. The package uses obfuscation by reconstructing hostnames and dangerous API names from split-string arrays to evade detection. A secondary module mimics these drop-and-execute primitives under the guise of an analytics SDK. This results in full remote code execution on the host when the library is loaded.
Potential Impact
This malicious package enables an attacker to execute arbitrary code on the host system with the privileges of the process loading the package. This can lead to full system compromise, data theft, persistence, and further attacks. The execution is triggered simply by requiring the package, making it highly dangerous if included in a project.
Mitigation Recommendations
No official patch or remediation is currently documented. Users should immediately remove version 35.5.1 of devplatform-cli-plugin-lint from their projects and avoid using this package. Audit dependencies for this package and any transitive dependencies. Consider using trusted package sources and integrity verification mechanisms. Monitor vendor advisories for updates or official fixes. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-12702
- Osv Schema Version
- 1.7.4
- Ecosystems
- ["npm"]
Threat ID: 6a735737bf8831d5391483c9
Added to database: 08/05/2026, 15:31:03 UTC
Last enriched: 08/05/2026, 16:29:39 UTC
Last updated: 09/18/2026, 02:22:18 UTC
Views: 22
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