Description
A supply chain attack compromised the official installation packages of DAEMON Tools Lite (Windows versions 12.5.0.2421 through 12.5.0.2434), distributed from the legitimate website daemon-tools.cc between approximately April 8, 2026, and May 5, 2026. Attackers gained unauthorized access to the vendor's (AVB Disc Soft) build or distribution infrastructure and trojanized three binaries: DTHelper.exe, DiscSoftBusServiceLite.exe, and DTShellHlp.exe. These files were digitally signed with the legitimate AVB Disc Soft code-signing certificate, allowing the malicious installers to appear trustworthy and bypass signature-based detection.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| AVB Disc Soft | DAEMON Tools Lite | 12.5.0.2421 – < 12.6.0.* | 12.6.0.* |
References
- DAEMON Tools software infected – supply chain attack ongoing since April 8, 2026 technical-description third-party-advisory
- Security Incident Affecting DAEMON Tools Lite: What We Know So Far vendor-advisory