Malicious code in zztest17785553661 (RubyGems)
Malicious code was discovered in the RubyGems package zztest17785553661. The package was identified and cataloged by the OpenSSF malicious packages project.
- Disclosed
- Last updated
- Blast radius
- Low (test/demonstration package with limited adoption)
- Ecosystems
- Attack vectors
- Affected entities
- zztest17785553661
A RubyGems package named zztest17785553661 was found to contain malicious code. The discovery was credited to the OpenSSF (Open Source Security Foundation) and documented in their malicious packages repository.\n\nThe package was assigned identifier MAL-2026-9978 in the OpenSSF malicious packages database. This appears to be a test or demonstration package used for tracking and cataloging malicious package incidents.\n\nUsers of this package should remove it immediately and verify their systems for any compromise.
Indicators of compromise
- Packages
- zztest17785553661
Remediation
- Remove the zztest17785553661 package from all systems
- Audit systems that may have installed this package for signs of compromise
- Review dependency manifests to ensure this package is not listed as a dependency
- Monitor for any suspicious activity on systems where this package was installed
Sources
- GitHub Advisory GHSA-4ffg-jq89-wwp4 · GitHub Advisory Database
Cite this entry
"Malicious code in zztest17785553661 (RubyGems)." supplychainattack.org, Supply Chain Attack Incident Catalog. Disclosed July 18, 2026; last updated July 18, 2026. https://supplychainattack.org/incident/malicious-code-in-zztest17785553661-rubygems-1agd0c
Suggest a correction
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