MAL-2026-4252

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@43uh3ig43/telemetry-client/MAL-2026-4252.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-4252
Aliases
  • GHSA-hqc4-gwfr-49r6
Published
2026-05-22T06:28:38Z
Modified
2026-07-07T14:01:45.995792457Z
Summary
Malicious code in @43uh3ig43/telemetry-client (npm)
Details

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

Source: amazon-inspector (37d4a096b834c0d9acdddefee09b0c6cb4d8c6f68513b2ebb4ec88424f491e89)

On npm install, the package's preinstall, install, and postinstall lifecycle hooks all invoke telemetry.js, which collects host metadata (OS, architecture, Node version, pid) and CI-provider identification (probing GITHUBACTIONS, AZUREDEVOPS, JENKINS_HOME environment variables), hex-encodes the JSON payload, and exfiltrates it via DNS lookups to subdomains of d87vcrdfokaufbs0qf903rg6tp9to7jpe.oast.pro — a Project Discovery interactsh out-of-band server. The exfil destination is split-string concatenated at telemetry.js:15 ("d87vcrdfokaufbs0"+"qf903rg6tp9to7jpe"+"."+"oa"+"st"+"."+"pro") specifically to evade naive static grep. The package's user-facing index.js is a stub that only logs a string; the real behavior is the install-time beacon. Combined with the random-looking scope, anomalously high version (99.0.1), and UNLICENSED metadata, this is the canonical fingerprint of a dependency-confusion / supply-chain recon probe — designed to trigger from corporate build systems whose internal package names collide with this scope and to phone home with enough host context to identify the victim organization.

Source: ghsa-malware (892a8ab4e7f80eb0672e989c01b045b533ff527b194b925e663ecd55a2bf4d8e)

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.

Source: ossf-package-analysis (bf448f47154495a6c9e04750e66ab6c67cbcc98809f05d7d4d97c297461d3862)

The OpenSSF Package Analysis project identified '@43uh3ig43/telemetry-client' @ 99.0.1 (npm) as malicious.

It is considered malicious because:

  • The package communicates with a domain associated with malicious activity.
Database specific 
{
    "malicious-packages-origins": [
        {
            "sha256": "bf448f47154495a6c9e04750e66ab6c67cbcc98809f05d7d4d97c297461d3862",
            "modified_time": "2026-05-22T07:05:50Z",
            "import_time": "2026-05-22T07:48:02.178676929Z",
            "versions": [
                "99.0.1"
            ],
            "source": "ossf-package-analysis"
        },
        {
            "id": "IN-MAL-2026-004152",
            "modified_time": "2026-05-22T06:28:39Z",
            "import_time": "2026-05-26T05:52:02.198612438Z",
            "sha256": "2cfd4ae6b32f9425af323ba62839f08fdf413cfe955a027662171781ba0f30ed",
            "source": "amazon-inspector",
            "versions": [
                "99.0.1"
            ]
        },
        {
            "versions": [
                "99.0.1"
            ],
            "modified_time": "2026-05-22T06:28:38Z",
            "import_time": "2026-05-26T05:52:02.093742844Z",
            "sha256": "37d4a096b834c0d9acdddefee09b0c6cb4d8c6f68513b2ebb4ec88424f491e89",
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-004151"
        },
        {
            "id": "GHSA-hqc4-gwfr-49r6",
            "modified_time": "2026-07-07T13:51:28Z",
            "import_time": "2026-07-07T13:57:11.622991721Z",
            "sha256": "892a8ab4e7f80eb0672e989c01b045b533ff527b194b925e663ecd55a2bf4d8e",
            "ranges": [
                {
                    "type": "SEMVER",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / @43uh3ig43/telemetry-client

Package

Name
@43uh3ig43/telemetry-client
View open source insights on deps.dev
Purl
pkg:npm/%4043uh3ig43%2Ftelemetry-client

Affected ranges

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

Affected versions

99.*
99.0.1

Database specific

cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code"
    },
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@43uh3ig43/telemetry-client/MAL-2026-4252.json"
indicators 
{
    "package_integrity": [
        {
            "filename": "telemetry-client-99.0.1.tgz",
            "hashes": {
                "sha512_sri": "sha512-rpbkCihROyW2XeGlckpK3kUko//kxw8dDFVNajGSeCsleJ/eAGoCCIVbkvZbbISApiegfHXvXoGlMrBjctmaDQ==",
                "sha1": "72a3615cd15ac27c6d907f0bbb51b191efcca869"
            }
        }
    ],
    "domains": [
        "p4.77645f68617368223a302c22706964223a32337d.te1c.d87vcrdfokaufbs0qf903rg6tp9to7jpe.oast.pro",
        "k.te1c.d87vcrdfokaufbs0qf903rg6tp9to7jpe.oast.pro",
        "p4.77645f68617368223a302c22706964223a33347d.te1c.d87vcrdfokaufbs0qf903rg6tp9to7jpe.oast.pro",
        "p1.227473223a313737393433313238373439372c226f73223a22.te1c.d87vcrdfokaufbs0qf903rg6tp9to7jpe.oast.pro",
        "p4.77645f68617368223a302c22706964223a34357d.te1c.d87vcrdfokaufbs0qf903rg6tp9to7jpe.oast.pro",
        "c.te1c.d87vcrdfokaufbs0qf903rg6tp9to7jpe.oast.pro",
        "p0.7b22736368656d61223a312c22626964223a2274653163222c.te1c.d87vcrdfokaufbs0qf903rg6tp9to7jpe.oast.pro",
        "p3.696d65223a227631382e32302e38222c226369223a302c2263.te1c.d87vcrdfokaufbs0qf903rg6tp9to7jpe.oast.pro",
        "p1.227473223a313737393433313238353330392c226f73223a22.te1c.d87vcrdfokaufbs0qf903rg6tp9to7jpe.oast.pro",
        "p1.227473223a313737393433313238323430332c226f73223a22.te1c.d87vcrdfokaufbs0qf903rg6tp9to7jpe.oast.pro",
        "p2.6c696e7578222c2261726368223a22783634222c2272756e74.te1c.d87vcrdfokaufbs0qf903rg6tp9to7jpe.oast.pro"
    ],
    "evidence_files": [
        {
            "sha256": "612e8a1549cd4dea5400ed9375aebc9d3d630e2fcc4b681750dbec489de5a748",
            "path": "telemetry.js",
            "tlsh": "1b4174ae59e8312911722468f81f4b41a1b7e2231e34f995f89bc3b41fe19bc11f86f4"
        },
        {
            "sha256": "53003d2639c4e3cbbf263d6127bee2a04e3eac152fbb227162b96595d86cb0c4",
            "path": "package.json",
            "tlsh": "4df08b386e2649372dd127a3da7744c1b37a0d770509380c2b83060d8a8e52f25ff32e"
        }
    ]
}