Malicious code in bjs-lint-builders (npm)
big.js typosquat campaign - SSH backdoor implantation, credential and crypto wallet theft --- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (93ff31ee3bf86e4aecefc3ed40ae1647028f7fd482df4c617731ebfd75cad027) The package bjs-lint-builders was found to contain malicious code. ## Source: ghsa-malware (cbd819f058f71f8a53254b5135abf41aacd18967c21f41bda5eac5e00fbc1090) 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.
AI Analysis
Technical Summary
The bjs-lint-builders npm package is a malicious typosquat of the legitimate big.js package. It contains code that implants an SSH backdoor and steals credentials and crypto wallets from affected systems. Installation or execution of this package results in full system compromise, requiring urgent remediation steps beyond simple package removal. No CVSS score is assigned. The affected versions are exactly 1.0.4, 1.0.5, and 1.1.0. There is no vendor advisory or patch available, and no known exploits in the wild have been reported yet.
Potential Impact
Systems with the affected versions of bjs-lint-builders installed are fully compromised. The malicious code enables attackers to implant SSH backdoors and steal sensitive credentials and cryptocurrency wallets. This leads to complete loss of system integrity and confidentiality. Secrets and keys stored on compromised machines are at high risk and must be rotated immediately from a secure environment.
Mitigation Recommendations
Remove the bjs-lint-builders package immediately from all affected systems. Consider all systems with this package installed as fully compromised. Rotate all secrets, credentials, and cryptographic keys from a different, uncompromised system. Because the attacker may have persistent access via implanted backdoors, further forensic analysis and system restoration from known good backups are recommended. No official patch or fix is available; remediation relies on removal and credential rotation.
Malicious code in bjs-lint-builders (npm)
Description
big.js typosquat campaign - SSH backdoor implantation, credential and crypto wallet theft --- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (93ff31ee3bf86e4aecefc3ed40ae1647028f7fd482df4c617731ebfd75cad027) The package bjs-lint-builders was found to contain malicious code. ## Source: ghsa-malware (cbd819f058f71f8a53254b5135abf41aacd18967c21f41bda5eac5e00fbc1090) 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.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The bjs-lint-builders npm package is a malicious typosquat of the legitimate big.js package. It contains code that implants an SSH backdoor and steals credentials and crypto wallets from affected systems. Installation or execution of this package results in full system compromise, requiring urgent remediation steps beyond simple package removal. No CVSS score is assigned. The affected versions are exactly 1.0.4, 1.0.5, and 1.1.0. There is no vendor advisory or patch available, and no known exploits in the wild have been reported yet.
Potential Impact
Systems with the affected versions of bjs-lint-builders installed are fully compromised. The malicious code enables attackers to implant SSH backdoors and steal sensitive credentials and cryptocurrency wallets. This leads to complete loss of system integrity and confidentiality. Secrets and keys stored on compromised machines are at high risk and must be rotated immediately from a secure environment.
Mitigation Recommendations
Remove the bjs-lint-builders package immediately from all affected systems. Consider all systems with this package installed as fully compromised. Rotate all secrets, credentials, and cryptographic keys from a different, uncompromised system. Because the attacker may have persistent access via implanted backdoors, further forensic analysis and system restoration from known good backups are recommended. No official patch or fix is available; remediation relies on removal and credential rotation.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-2881
- Osv Schema Version
- 1.7.4
- Aliases
- ["GHSA-cv9f-3jc4-hxhv"]
- Ecosystems
- ["npm"]
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a4c342c27e9c797195fa5ad
Added to database: 07/06/2026, 23:03:08 UTC
Last enriched: 07/06/2026, 23:24:48 UTC
Last updated: 07/28/2026, 15:11:54 UTC
Views: 15
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