Malicious code in banana-stand (npm)
The npm package 'banana-stand' version 9.9.11 contains malicious code that exfiltrates host identifiers via DNS queries to an attacker-controlled domain. The package's install lifecycle hook and main entry point execute code that collects system information such as username, hostname, and current working directory, then encodes and sends this data out-of-band. The exfiltration code is intentionally obfuscated using runtime decoding of byte arrays. Any system with this package installed or running is considered fully compromised, and all secrets on that system should be rotated immediately from a different machine.
AI Analysis
Technical Summary
The 'banana-stand' npm package version 9.9.11 includes malicious code executed during installation and runtime. This code collects sensitive host information (username, hostname, current working directory) and sends it via DNS queries to a domain controlled by the attacker (oob.sl4x0.xyz). The exfiltration mechanism is obfuscated through runtime decoding of strings to conceal the DNS-based data leak. Due to this behavior, any system with this package installed or running is at high risk of compromise, potentially exposing all stored secrets and keys.
Potential Impact
Systems with 'banana-stand' version 9.9.11 installed or running are fully compromised, as the package exfiltrates sensitive host identifiers to an attacker-controlled domain. This can lead to unauthorized access and potential further compromise. Secrets and keys stored on the affected system may be exposed and should be considered compromised.
Mitigation Recommendations
No patch or official fix is currently documented for this malicious package version. Immediate removal of the 'banana-stand' package version 9.9.11 is recommended. Additionally, all secrets and keys stored on the affected system should be rotated from a separate, trusted machine. Due to the high risk of full system compromise, further forensic analysis and remediation may be necessary.
Malicious code in banana-stand (npm)
Description
The npm package 'banana-stand' version 9.9.11 contains malicious code that exfiltrates host identifiers via DNS queries to an attacker-controlled domain. The package's install lifecycle hook and main entry point execute code that collects system information such as username, hostname, and current working directory, then encodes and sends this data out-of-band. The exfiltration code is intentionally obfuscated using runtime decoding of byte arrays. Any system with this package installed or running is considered fully compromised, and all secrets on that system should be rotated immediately from a different machine.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The 'banana-stand' npm package version 9.9.11 includes malicious code executed during installation and runtime. This code collects sensitive host information (username, hostname, current working directory) and sends it via DNS queries to a domain controlled by the attacker (oob.sl4x0.xyz). The exfiltration mechanism is obfuscated through runtime decoding of strings to conceal the DNS-based data leak. Due to this behavior, any system with this package installed or running is at high risk of compromise, potentially exposing all stored secrets and keys.
Potential Impact
Systems with 'banana-stand' version 9.9.11 installed or running are fully compromised, as the package exfiltrates sensitive host identifiers to an attacker-controlled domain. This can lead to unauthorized access and potential further compromise. Secrets and keys stored on the affected system may be exposed and should be considered compromised.
Defensive Guidance
No patch or official fix is currently documented for this malicious package version. Immediate removal of the 'banana-stand' package version 9.9.11 is recommended. Additionally, all secrets and keys stored on the affected system should be rotated from a separate, trusted machine. Due to the high risk of full system compromise, further forensic analysis and remediation may be necessary.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- MAL-2026-4495
- Osv Schema Version
- 1.7.4
- Aliases
- ["GHSA-m27g-5q57-x86r","GHSA-x4gx-rrjg-5rrh"]
- Ecosystems
- ["npm"]
Threat ID: 6a96f319acd9273b49e49781
Added to database: 09/01/2026, 15:45:29 UTC
Last enriched: 09/08/2026, 08:37:58 UTC
Last updated: 09/08/2026, 08:37:58 UTC
Views: 4
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