sc-font-iconsnpm
Advisory published Updated
sc-font-icons is a confirmed malicious npm package (MAL-2026-12800) that opens a backdoor for remote access (malicious versions 99.9.1, 9999.0.0). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in sc-font-icons (npm)
What this malware does
The package's preinstall script runs automatically on npm install and collects installer-side identifiers — os.hostname(), os.userInfo().username, process.cwd(), the configured npm registry, and CI repository slugs from GITHUB_REPOSITORY / CI_PROJECT_PATH — and sends them over plain HTTP GET to a hardcoded bare-IP endpoint at http://75.119.137.232:31337/depconfuse as query parameters. The version number (9999.0.0) and the beacon path (/depconfuse) are consistent with a dependency-confusion probe: the artifact exists to be pulled into internal builds that mis-resolve a private package name to the public registry, and to report back the internal package name, host, user, working directory, private registry URL, and repository slug of any environment that installs it. The destination is a bare IP with no TLS, unrelated to any legitimate npm publishing infrastructure, and the collected fields disclose internal repository and infrastructure naming to a third party.
The OpenSSF Package Analysis project identified 'sc-font-icons' @ 99.9.1 (npm) as malicious.
It is considered malicious because:
- The package communicates with a domain associated with malicious activity.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Backdoor / remote accessFind it
Search your lockfiles and build artifacts for sc-font-icons (2 malicious versions).
If you installed it — respond
sc-font-icons establishes remote access, so treat any host that installed it as fully compromised. Isolate the machine, remove the package, rotate all credentials it could reach, and rebuild from a trusted image rather than cleaning in place — a backdoor may have planted additional persistence.
Did it already run?
If sc-font-icons 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
- OpenSSF: Package Analysis · finder
Detect & block this
O3 blocks sc-font-icons-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the C2 callback and severs the channel.