Malware in simplipayng
Malware was discovered in the npm package simplipayng. Systems with this package installed or running should be considered fully compromised and require immediate remediation.
- Disclosed
- Last updated
- Blast radius
- Any system with the package installed or running
- Ecosystems
- Attack vectors
- Affected entities
- simplipayng
A critical malware incident was identified in the npm package simplipayng, disclosed via GitHub Advisory GHSA-qw5j-q6g9-pqhf on August 6, 2026.\n\nAny computer with this package installed or running should be considered fully compromised. The malware may have granted outside entities full control of affected systems.\n\nImmediate remediation requires rotating all secrets and keys from a different, uncompromised computer. While the package should be removed, there is no guarantee that removal will eliminate all malicious software that may have been installed as a result of the compromise.\n\nUsers should assume complete system compromise and take appropriate incident response measures.
Indicators of compromise
- Packages
- simplipayng
Remediation
- Immediately rotate all secrets, keys, and credentials from a different, uncompromised computer
- Remove the simplipayng package from all affected systems
- Conduct a full security audit and forensic analysis of any system that had this package installed
- Monitor affected systems for signs of persistent malware or unauthorized access
- Consider full system reimaging if complete compromise is suspected
Sources
- GitHub Advisory GHSA-qw5j-q6g9-pqhf · GitHub Advisory Database
Cite this entry
"Malware in simplipayng." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed August 6, 2026; last updated August 6, 2026. https://supplychainattack.org/incident/malware-in-simplipayng-t3n8kq
Suggest a correction
Found an error or have a newer source? Corrections to factual errors take priority over new entries.
Related incidents
- resolvedcritical
Malicious code in typescirpt-cli (npm)
The npm package typescirpt-cli (a typosquat of typescript-cli) contained malicious code in its postinstall script that downloads and executes a binary (main.exe) on Windows and WSL systems, and exfiltrates system metadata to a hardcoded IP address.
npmTyposquattingCompromised package - containedcritical
Malicious code in typescipt-core (npm)
The npm package typescipt-core (a typosquat of typescript) contained malicious postinstall code that downloads and executes a second-stage payload on Windows and WSL systems. The dropper exfiltrates host profile information to 193.70.34.101:20099 before fetching attacker-controlled executables.
npmCompromised packageTyposquatting - containedcritical
Malicious code in typesript-cli (npm)
The npm package 'typesript-cli' (a one-character typosquat of 'typescript') contains malicious code in its postinstall script that downloads and executes a Windows PE binary, and can cross the Linux/WSL sandbox boundary to execute payloads on the Windows host. The script also beacons to a hardcoded IP endpoint.
npmTyposquattingCompromised package - resolvedcritical
Malicious code in @mohamed_nowisar/depconf-canary-test (npm)
The npm package @mohamed_nowisar/depconf-canary-test contained malicious code in its preinstall hook that automatically collected and exfiltrated host and CI environment information to an attacker-controlled webhook endpoint without user consent.
npmCompromised package