Rapuncel Infostealer Distributed via Fake GitHub Organizations
Score: 9/10

Rapuncel Infostealer Distributed via Fake GitHub Organizations

The Rapuncel infostealer is distributed via SEO-optimized fake GitHub organizations, utilizing a Microsoft-signed kernel driver to disable security software.

Executive Summary

In late 2026, the LastPass TIME Team and Delphos Labs identified a multi-stage Malware-as-a-Service (MaaS) campaign impersonating at least 40 brands, including LastPass, on GitHub. The campaign uses SEO-optimized repositories and complex GitHub Pages redirect chains to deliver high-volume ZIP archives. These archives contain the Rapuncel infostealer and a malicious kernel driver, Alinubx.sys, which is signed by Microsoft's Hardware Compatibility Publisher chain to bypass modern trust controls.

The technical backbone of this attack involves Bring Your Own Vulnerable Driver (BYOVD) tactics. The Alinubx.sys driver is a renamed variant of CcProtect.sys, which utilizes kernel-mode privileges to terminate 145 different antivirus and EDR processes. Once defenses are neutralized, the Rapuncel payload exfiltrates credentials, cryptocurrency wallets, and session tokens from over 25 browsers and 30 wallet applications, using sophisticated DLL injection to bypass Google's app-bound encryption.

This campaign represents a significant threat to corporate and personal identities due to its ability to neutralize endpoint security from the kernel level. By leveraging legitimate Microsoft signatures and reputable platforms like GitHub, the actors successfully bypassed VirusTotal detections and established trust, highlighting a critical failure in traditional signature-based detection and blocklisting methodologies.

Key Details

Threat Name

Rapuncel Infostealer

Affects

—

Adversary

Cruciferra Other Adversaries and Aliases: BoryptGrab campaign

Malware/Tools

Rapuncel, Alinubx.sys, Cruciferra, BoryptGrab, CcProtect.sys, ProtectR3.dll, Cruciferra PUROSANGUE, TunnesshClient, HeaconLoad

Report Score

9out of 10
Quality Score
Excellent
IOC Quality9
TTP Details9
Detection Guidance7
Enterprise Relevance9
Clarity & Structure8
Technical Depth9

Sources