dolyame-ui-collapseblock

{"modified":"2026-08-07T12:33:49Z","published":"2026-08-07T12:33:49Z","schema_version":"1.7.4","id":"MAL-2026-13559","summary":"Malicious code in dolyame-ui-collapseblock (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (ef9992e81f3de4cb9bd4391466d7850e953c19a0772ebbe5992953044466377c)\nOn require(), _shim.js fetches an OS/architecture-specific native binary from hardcoded Cloudflare Workers hosts (oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev) whose hostnames are reconstructed at runtime via array-join to evade static inspection. The payload is written to /tmp or %TEMP% under a disguised name (.cache_<rand> on Unix, dotnet_diag_<rand>.exe on Windows), chmodded 0755, and spawned detached via /bin/sh -c or cmd. If HTTPS fetches fail, the loader falls back to a DNS-TXT covert channel under sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru, retrieving a chunk count from c.<domain> and reassembling a base64-encoded binary from sequentially-numbered subdomain TXT records. index.js requires _shim on load, so importing the package auto-executes the fetched attacker-controlled native binary with no version pinning, no hash or signature verification, and destinations unrelated to the package's stated purpose. A 21028-second cache stamp gates repeats and undocumented environment variables provide an operator opt-out, both consistent with hostile dropper tradecraft rather than legitimate functionality.\n","affected":[{"package":{"ecosystem":"npm","name":"dolyame-ui-collapseblock"},"versions":["35.8.1"],"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":"_shim.js","sha256":"0e8158e4aa76a286f520de3e54708eda541df671d703feee52a7893cf6d8a0b3","tlsh":"44a1845a26fb30180793e5d4851f8826719af65333c4d9c4fb8c6a984fe653883b29fc"}],"package_integrity":[{"filename":"dolyame-ui-collapseblock-35.8.1.tgz","hashes":{"sha1":"0a8abfa47bbdc9e9bf6442549b3fbf16cba5a1e7","sha512_sri":"sha512-AxhNpQ0OyuFNuGjdOTNUp11ihZGLsslQh0wUGEVafE+WL+BAfBkmwhVVnMcT6QpPBRUVl2s9zdOXrgL642fzGw=="}}]}}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/dolyame-ui-collapseblock/v/35.8.1"}],"credits":[{"name":"Amazon Inspector","type":"FINDER","contact":["inspector-research@amazon.com"]}],"database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-017031","import_time":"2026-08-07T12:51:22.926554919Z","modified_time":"2026-08-07T12:33:49Z","sha256":"ef9992e81f3de4cb9bd4391466d7850e953c19a0772ebbe5992953044466377c","source":"amazon-inspector","versions":["35.8.1"]}]}}