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Malicious code in backup3-ff (npm)

0
Critical
Published: 07/13/2026 (07/13/2026, 06:27:39 UTC)
Source: GCVE Database
Product: backup3-ff

Description

The npm package [email protected] contains multiple heavily obfuscated JavaScript bundles that do not align with its purported backup utility function. The obfuscated code includes UI page bundles such as AccountPage and SettingsPage, raising suspicion about malicious intent. There is no confirmed code path to verify credential harvesting or remote code execution, but the package is considered highly dangerous. Any system with this package installed should be treated as fully compromised, and all secrets and keys should be rotated from a separate, clean device.

Affected software

npmghsa
backup3-ff

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 09/12/2026, 17:47:17 UTC

Technical Analysis

The npm package [email protected] ships with multiple heavily obfuscated JavaScript bundles under the assets/ directory, including AccountPage, DarkVeil, GamesPage, PlusBlockedNote, and SettingsPage. The obfuscation uses javascript-obfuscator-style hex identifiers (_0x-prefixed variable names). The package's name suggests a backup utility, but the included code bundles are UI-related and suspicious. There is no available traced code path to confirm or exclude malicious behaviors such as credential harvesting, exfiltration, or remote code execution. According to the ghsa-malware source, any computer with this package installed should be considered fully compromised, necessitating immediate secret and key rotation and package removal.

Potential Impact

Systems with the [email protected] package installed are considered fully compromised. The presence of heavily obfuscated code raises the risk of hidden malicious activities, including potential credential theft, data exfiltration, or remote code execution. The compromise may extend beyond the package itself, as attackers could have established persistent control over the affected system. Therefore, all secrets and keys stored on the compromised system must be rotated immediately from a separate, secure device.

Mitigation Recommendations

Remove the [email protected] package immediately from all affected systems. Rotate all secrets, keys, and credentials that were stored or used on the compromised systems from a different, secure computer. Because the system may be fully compromised, consider rebuilding the affected systems from a trusted backup or reinstalling the operating system to ensure complete removal of any malicious artifacts. No official patch or fix is available for this malicious package.

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Technical Details

Gcve Source
db.gcve.eu
Osv Id
MAL-2026-10287
Osv Schema Version
1.7.4
Aliases
["GHSA-8w5w-mhwr-m53r"]
Ecosystems
["npm"]

Threat ID: 6a54adb768715ace438f4b62

Added to database: 07/13/2026, 09:19:51 UTC

Last enriched: 09/12/2026, 17:47:17 UTC

Last updated: 09/12/2026, 17:47:17 UTC

Views: 57

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