devplatform-cli-spa

{"modified":"2026-08-05T13:51:46Z","published":"2026-08-05T13:51:46Z","schema_version":"1.7.4","id":"MAL-2026-12704","summary":"Malicious code in devplatform-cli-spa (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (1bb41284069ba395bf67ceb847dc579c7a79c753ea89107116e91559ebbece2a)\nOn require('devplatform-cli-spa'), index.js loads _support.js which selects a payload by OS and architecture, downloads a native binary over HTTPS from string-obfuscated Cloudflare Workers hostnames (oob-worker.cf1-01-adf.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf99-9b3.workers.dev, oob-worker.cf102-baf.workers.dev), with a DNS TXT base64 fallback served from *.dl.wel1.ru. The fetched bytes are written to /tmp/.cache_<rnd> on Unix or %TEMP%/dotnet_diag_<rnd>.exe on Windows, chmod'd to 0755, and executed detached via spawn('/bin/sh', ['-c',...]) or spawn('cmd', ['/c', 'start',...]). The C2 hostnames and the DNS fallback domains are assembled at runtime by joining split string fragments (_NODES and _DNS_HOSTS arrays) to evade static string matching. The Windows drop path uses a 'dotnet_diag' decoy filename, and a stamp file gates re-runs across installs.\n","affected":[{"package":{"ecosystem":"npm","name":"devplatform-cli-spa"},"versions":["35.7.8"],"database_specific":{"cwes":[{"cweId":"CWE-506","description":"The product contains code that appears to be malicious in nature.","name":"Embedded Malicious Code"}],"indicators":{"evidence_files":[{"path":"_support.js","sha256":"822e7def114a07de4d365eaece31b6659dd32f43a9949e6c9739d34c04322559","tlsh":"35b1a796156a70198b70d7e487275416f556e6633380c2c4fb6ca5981fb6124c372efc"}],"package_integrity":[{"filename":"devplatform-cli-spa-35.7.8.tgz","hashes":{"sha1":"3c7db4f2edf8595836aacf43f10a90e753de14dc","sha512_sri":"sha512-YXG+U/CQ3jQWhwfiIsYsZ0GGbnE4YNWaLMCZmfdwBJxb6UORFZXGXH7dDpilxSgCEmzIHBYNfk55NZM2fgRh6g=="}}]}}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/devplatform-cli-spa/v/35.7.8"}],"credits":[{"name":"Amazon Inspector","type":"FINDER","contact":["inspector-research@amazon.com"]}],"database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-015070","import_time":"2026-08-05T14:19:58.792874325Z","modified_time":"2026-08-05T13:51:46Z","sha256":"1bb41284069ba395bf67ceb847dc579c7a79c753ea89107116e91559ebbece2a","source":"amazon-inspector","versions":["35.7.8"]}]}}