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Malicious package

swa8403fossRubyGems

Malicious code in swa8403foss (RubyGems) Remove it immediately and rotate any exposed credentials.

MAL-2026-8910
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
gem uninstall swa8403foss

Malicious versions

1 flagged
0.0.1

Indicators of compromise (SHA-256)

45710964f92096411cd1be1795bc96fa15169c5aa38a001c6023b2e35b2be23d

Detection & response playbook

Malicious package
  1. Find it

    Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for swa8403foss (version 0.0.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging swa8403foss across your stack and pipelines.

  2. If you installed it — respond

    Remove swa8403foss from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.

  3. Did it already run?

    If swa8403foss was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.

  4. How O3 protects you

    O3 blocks swa8403foss before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.

Frequently asked questions

No. swa8403foss on RubyGems has been identified as a malicious package (version 0.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-03561

Credits

  • ReversingLabs · finder

Detect & block this

O3 blocks swa8403foss-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

swa8403foss (RubyGems) malicious package — MAL-2026-8910 | O3 Security