akamaijs-sensorv1npm
Advisory published Updated
akamaijs-sensorv1 is a confirmed malicious npm package (MAL-2026-14066) that opens a backdoor for remote access (malicious version 3.0.0). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in akamaijs-sensorv1 (npm)
What this malware does
The package advertises itself as an Akamai Bot Manager sensor generator, but its main entry conceals its real behavior. index.js contains a comment composed of invisible Unicode tag / variation-selector code points (U+FE00-U+FE0F and U+E0100-U+E01EF). sync-metrics.js reads the package's own index.js, decodes those invisible characters back into bytes, and executes the resulting string via new Function('require', batch)(require) — a hidden dynamic-eval sink that runs whenever a consumer invokes the exported sensor() API. sensor() additionally fetches a hardcoded public Google Calendar ICS feed (calendar.google.com/calendar/ical/hev4229%40gmail.com/public/basic.ics), parses the newest event's DESCRIPTION field for a URL (accepting plain text, href, or base64-encoded forms), rewrites it to end in /generate, issues a GET to that URL, and returns the response as JSON to the caller. The network destination the installer's process contacts is therefore controlled by whoever owns the [email protected] calendar and can be changed at any time by editing a calendar event, with no pinning, signing, or authentication of the retrieved URL. The invisible-character steganography, hidden eval, calendar-based dead-drop C2, and Akamai-lure package name together form a covert remote-code / attacker-controlled-redirector channel.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Backdoor / remote accessFind it
Search your lockfiles and build artifacts for akamaijs-sensorv1 (version 3.0.0).
If you installed it — respond
akamaijs-sensorv1 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 akamaijs-sensorv1 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
- ReversingLabs · finder
Detect & block this
O3 blocks akamaijs-sensorv1-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the C2 callback and severs the channel.