MALICIOUS (1) campaign cataloged at 2026-07-12(2).
- The campaign has clearly malicious intent, like infostealers.
- This is just the date of creating the catalog entry. It may not reflect the date of creation of the campaign itself.
2026-07-fast-dotenv¶
When using the library, it schedules a delayed malware activation. Malicious code contacts remote URLs to get C2 location, then performs machine fingerprinting, including looking for sensitive environmental variables and SSH keys. The code seems not to exfiltrate their content in the analyzed version. Additionally, the embeded configuration URLs did not exist, but they led to related C2 configurations from the same GitHub account, which also seems to have created repositories with similar malicious code in other languages.
Abuse categories¶
action-hidden-in-lib-usage
The malicious action is hidden in the code and starts when user interacts with it (e.g. during class initialization or by exfiltrating given credentials).
basic_exfiltration
The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.
exfiltration_env_variables
Campaign uses exfiltration_env_variables.
exfiltration_ssh_keys
Campaign uses exfiltration_ssh_keys.
References¶
Referenced resources may include blog posts about the campaign, malware analysis, sandbox reports, or other relevant information.
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https://gist.github.com/opensource-crypto/3946ef88aa057c9d10f1a7d80391d164/
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https://github.com/opensource-crypto/env-fast/blob/6c83117d0175fa3d16c3bca6bdb6dbf3528ee061/index.js
IoCs & related URLs¶
URLs with payloads, characteristic domains, C&C IPs, repositories with malicious code, etc.
c2.fanaccesshub.com