MAL-2026-12843

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bigops-telephony-ui-adapter/MAL-2026-12843.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12843
Aliases
  • GHSA-4jx7-3p75-j9r8
Published
2026-08-05T15:02:48Z
Modified
2026-08-06T01:19:59.304920020Z
Summary
Malicious code in bigops-telephony-ui-adapter (npm)
Details

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

Source: amazon-inspector (95bba7270d3de4aa970aefb0ef6b0017f4d9663219dd0eccbb44b5d3c9dd6f6a)

The package main index.js unconditionally requires _init.js, which on module load selects a platform-specific asset (linuxx64, linuxarm64, darwin, win32), downloads an opaque binary via https.get from runtime-assembled hosts (oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf103-070.workers.dev, sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, net.dl.wel1.ru), writes it to a temp path under a disguised name (dotnet_diag_*.exe, .cache_*), chmods 0o755 on POSIX, and detach-spawns it via cmd /c start on Windows or /bin/sh -c '<path> &' on POSIX with {detached:true, stdio:'ignore'}. Destination hostnames are reassembled from split string fragments (e.g. ['oob-worker.cf100-416','.workers.','dev'].join(''), ['sdk','.dl.wel1','.ru'].join('')) to evade static scans, and a DNS TXT fallback channel reconstructs the payload from base64 chunks via resolveTxt when HTTPS delivery fails. A DISABLE_TELEMETRY environment variable serves as a cover-story opt-out. The fetched bytes are not publisher-hosted, are not pinned by hash or signature, and are executed detached from the parent process. Any consumer that requires this package receives arbitrary attacker-controlled code execution on the host.

Source: ghsa-malware (5ba703443c47c5c41ded8a9d2c7823860a9abc84a2f9fc763d780af8668b88db)

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": [
        {
            "source": "amazon-inspector",
            "modified_time": "2026-08-05T15:02:48Z",
            "sha256": "95bba7270d3de4aa970aefb0ef6b0017f4d9663219dd0eccbb44b5d3c9dd6f6a",
            "id": "IN-MAL-2026-015546",
            "versions": [
                "35.6.4"
            ],
            "import_time": "2026-08-05T15:19:57.301080425Z"
        },
        {
            "import_time": "2026-08-06T00:58:53.281503194Z",
            "modified_time": "2026-08-05T18:42:42Z",
            "ranges": [
                {
                    "type": "SEMVER",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "id": "GHSA-4jx7-3p75-j9r8",
            "sha256": "5ba703443c47c5c41ded8a9d2c7823860a9abc84a2f9fc763d780af8668b88db",
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / bigops-telephony-ui-adapter

Package

Name
bigops-telephony-ui-adapter
View open source insights on deps.dev
Purl
pkg:npm/bigops-telephony-ui-adapter

Affected ranges

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

Affected versions

35.*
35.6.4

Database specific

cwes 
[
    {
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506"
    },
    {
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature."
    }
]
indicators 
{
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-J+GrpfY93wq/7hJP9QBBBbtYDjQSTPJCvxbT2QIK2OMckjOkHuC5KRaBu8P1MiSVgBKlP8nPVJ2YsRvM6KqsGA==",
                "sha1": "a299d62e3c1cd6f7e087d98bbd470fed8b1b21cb"
            },
            "filename": "bigops-telephony-ui-adapter-35.6.4.tgz"
        }
    ],
    "evidence_files": [
        {
            "path": "_init.js",
            "sha256": "6afa30ca619bf06674edede923a8ee4128246e7c3c90eee4beecad5031a73eeb",
            "tlsh": "99a1b79616a670198bb0ebf48717541af657f66332c0c1d8fb5ca9984f7212483b2efc"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bigops-telephony-ui-adapter/MAL-2026-12843.json"