MalwarePublished 5 Aug 2026

checkout-accounts-logic (npm) · Malicious Code

Affects checkout-accounts-logicSource GCVE Database

Malicious package : remove checkout-accounts-logic and rotate any secrets on hosts that installed it.

Data as of 5 Aug 2026, 15:50 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-12542

What to do

Remove checkout-accounts-logic from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.

Affected software

Product	Affected	Fixed in
npmcheckout-accounts-logic	Affected =35.9.2	Fixed in–

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Description

The npm package 'checkout-accounts-logic' version 35.9.2 contains malicious code that loads a native binary from attacker-controlled servers. This binary is fetched, saved with a disguised name, given execute permissions, and run detached from the main process. The package masquerades as a log formatter but has no legitimate reason to execute native code. It uses DNS TXT record lookups as a fallback for command and control (C2) hostnames, indicating sophisticated evasion techniques. No official patch or remediation guidance is currently available.

Impact

This malicious package enables remote code execution by downloading and executing an unverified native binary from attacker-controlled servers. The execution is detached and stealthy, with suppressed error logging, increasing the risk of undetected compromise. The use of fallback DNS TXT record lookups for C2 communication enhances the attacker's ability to maintain control even if primary hosts are blocked. This can lead to full system compromise on any environment where the package is installed and executed.

Defensive guidance

Users should immediately remove version 35.9.2 of 'checkout-accounts-logic' from their environments and avoid installing or using this package. Review dependency trees to ensure this package is not included transitively. Monitor for any suspicious activity related to this package and consider using trusted sources and package integrity verification to prevent installation of malicious packages.

Summary

The 'checkout-accounts-logic' npm package version 35.9.2 includes malicious functionality where, upon being required, it loads an internal module (_adapter.js) that reconstructs multiple command and control hostnames from split string arrays. It then downloads a platform-specific binary from these attacker-controlled hosts via HTTPS, writes it to a temporary file with a disguised filename, sets executable permissions, and executes it detached from the main process using shell commands. The package suppresses standard error output to avoid detection. Additionally, it performs DNS TXT record lookups to obtain fallback C2 destinations if the primary hosts are blocked. The binary is opaque, unpinned, and unverified, posing a high risk of remote code execution and persistence. The package falsely presents itself as a log formatter, which has no legitimate need for such behavior.

References

npmjs.com/package/checkout-accounts-logic/v/35.9.2 (opens in a new tab)

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What to do

Affected software

Description

AI analysisMachine-generated, updated 5 Aug 2026, 15:50 UTC

Technical details

References

Community reviews