MAL-2026-10400

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@equansservices/tool/MAL-2026-10400.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-10400
Aliases
  • GHSA-5v77-3vqq-cv88
Published
2026-07-13T05:14:28Z
Modified
2026-08-05T06:35:08Z
Summary
Malicious code in @equansservices/tool (npm)
Details

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

Source: amazon-inspector (7bb693b5ae7f1fccb6c2aaa1a5f9225b23fb7ece3928feca604f2c5139ee5198)

The package's postinstall hook (node setup.js) fetches a platform-specific payload from http://d2vf4rs175cy2k.cloudfront.net/install/v1/plugin.zip over plain HTTP, extracts it to a temp directory, and launches it detached with stdio ignored and window hidden. On Windows the extracted aws.exe is executed; on Linux python3 upgrade.py is run. There is no version pinning, no hash or signature verification, and the CloudFront distribution is not associated with any declared publisher domain. The package name @equansservices/tool and description EquansService Claude package present the artifact as tooling associated with the Equans brand and the Anthropic Claude ecosystem, while the payload host is anonymous CloudFront infrastructure unrelated to either. Any environment running npm install executes the fetched attacker-controlled binary automatically.

Source: ghsa-malware (0120fd633de3525c578200d8c49d3b21827a2d5f9318db5ac65e59ed84dcfcbb)

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": [
        {
            "id": "IN-MAL-2026-009798",
            "import_time": "2026-07-13T07:40:09.487545083Z",
            "modified_time": "2026-07-13T05:14:28Z",
            "sha256": "7bb693b5ae7f1fccb6c2aaa1a5f9225b23fb7ece3928feca604f2c5139ee5198",
            "source": "amazon-inspector",
            "versions": [
                "1.0.2"
            ]
        },
        {
            "id": "GHSA-5v77-3vqq-cv88",
            "import_time": "2026-07-27T09:43:03.760732633Z",
            "modified_time": "2026-07-27T00:57:47Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "0120fd633de3525c578200d8c49d3b21827a2d5f9318db5ac65e59ed84dcfcbb",
            "source": "ghsa-malware"
        },
        {
            "id": "IN-MAL-2026-013217",
            "import_time": "2026-08-05T06:00:55.02427257Z",
            "modified_time": "2026-08-05T05:51:01Z",
            "sha256": "ea9c23a65ddf4e949aa6b2a9a166d8d3e0edf394e788e4c60105ea19f3327a13",
            "source": "amazon-inspector",
            "versions": [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / @equansservices/tool

Package

Name
@equansservices/tool
View open source insights on deps.dev
Purl
pkg:npm/%40equansservices/tool

Affected ranges

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

Affected versions

1.*
1.0.0
1.0.2

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": "setup.js",
            "sha256": "f8aeb3c5e520d5283e5f8fe90f83735d74b3f2e284a875b9b7fd88b952e97bdb",
            "tlsh": "8281b74c1af3b3300b7215d967db1476a6638103310ae9a8b66c02686fda02c95773df"
        },
        {
            "path": "package.json",
            "sha256": "2726c9ef3d602f66afde9d8be54a647d7baa5e9246f54ef055680b1a16ead55c",
            "tlsh": "fcd0a764dca7677320c93ae55d3e402765398e9a11887c192be3014446cdaae6c79319"
        }
    ],
    "package_integrity": [
        {
            "filename": "tool-1.0.2.tgz",
            "hashes": {
                "sha1": "e46ea05c53f37c9d148256077d906d3f84d6d260",
                "sha512_sri": "sha512-+OrE39rgVpy3NDm2dKij/8D1rdKvQuV/AewxrhWeL3vKxcPfjb4JE/9num38jSUR4UHrTO9XJscUylleYAqxNA=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@equansservices/tool/MAL-2026-10400.json"