MAL-2025-49282

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/ect-472839/MAL-2025-49282.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2025-49282
Aliases
  • GHSA-6mm4-66fp-hmxv
Published
2025-10-31T02:28:48Z
Modified
2026-06-16T00:01:51Z
Summary
Malicious code in ect-472839 (npm)
Details

-= Per source details. Do not edit below this line.=-

Source: amazon-inspector (97e7438d5379376c2214a33c66ded547741bb4b4fd94a5a936859ed6c4bd68de)

On npm install, the package's lifecycle script (index.js lines 7-19) reads /flag.txt from the installer's host (falling back to cat /flag*) and PUTs the file contents in a JSON payload to a hardcoded endpoint at http://127.0.0.1:3000/api/modules/ECT-987654. The package.json declares name: ect-472839, version: 100.0.1, description: "Probe", and an empty author — the classic dependency-confusion probe fingerprint (high version number, throwaway metadata, no advertised functionality). The package has no legitimate purpose: its sole install-time effect is to read a CTF-style filesystem artifact and ship it to a service on the loopback interface. Although the destination is 127.0.0.1, on a host where some local service is bound to:3000 (or a dependency-confusion attack target where the attacker is running such a service), the file contents are exfiltrated. This is a malicious supply-chain probe, not a utility library.

Source: ghsa-malware (c25086e2f848341d091e22c0b53ca92f47f2bc94707307b739ed6dfc24be246f)

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.

Database specific 
{
    "malicious-packages-origins": [
        {
            "import_time": "2025-10-31T02:36:38.843411836Z",
            "modified_time": "2025-10-31T02:28:48Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "d1f987456493b44da9c89197bfe759f29348910e7f334a92c9d5d1fdc611f043",
            "source": "amazon-inspector"
        },
        {
            "id": "IN-MAL-2026-005840",
            "import_time": "2026-06-12T19:43:38.967894395Z",
            "modified_time": "2026-06-12T19:03:04Z",
            "sha256": "0f209a92628c43b16ca9cffd1462aaf777c8287df12592e93c3a1ab7f80a3259",
            "source": "amazon-inspector",
            "versions": [
                "100.0.0"
            ]
        },
        {
            "id": "IN-MAL-2026-005843",
            "import_time": "2026-06-12T19:43:39.288012265Z",
            "modified_time": "2026-06-12T19:03:05Z",
            "sha256": "97e7438d5379376c2214a33c66ded547741bb4b4fd94a5a936859ed6c4bd68de",
            "source": "amazon-inspector",
            "versions": [
                "100.0.1"
            ]
        },
        {
            "id": "GHSA-6mm4-66fp-hmxv",
            "import_time": "2026-06-15T23:52:17.792275806Z",
            "modified_time": "2026-06-15T23:34:02Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "c25086e2f848341d091e22c0b53ca92f47f2bc94707307b739ed6dfc24be246f",
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / ect-472839

Package

Name
ect-472839
View open source insights on deps.dev
Purl
pkg:npm/ect-472839

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

100.*
100.0.0
100.0.1

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"
    },
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "index.js",
            "sha256": "54e21ad90f05e51a261dbcce3912a691d5bf550a5cbfea7247917b65794b7464",
            "tlsh": "16d02ee092f2925020b8cac8a2ad56239023c005781bfdc0e3c802622f8000889128e0"
        }
    ],
    "package_integrity": [
        {
            "filename": "ect-472839-100.0.0.tgz",
            "hashes": {
                "sha1": "1cbf9d11de25505bc60ccccec7144fb61a452948",
                "sha512_sri": "sha512-3Mk6vCz69MMN9ON6JtjNkk11Ui2SLkdgPtkQWNJXAYdFHeBqGm/qzktCDGjYKym7NY0TMqfh/dzMd9otENUtLQ=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/ect-472839/MAL-2025-49282.json"