rt640x64.sys - Suspicious (35/100) - DriverShield Analysis
Analysis of rt640x64.sys: suspicious verdict, risk score 35/100. 1 YARA match, 0/75 multi-engine detections. SHA256 3af292bcbd169fd3. Kernel imports, IOCTL codes, MITRE ATT&CK, and code-signing details.
rt640x64.sys - Analysis Report
DriverShield analyzed the Windows kernel driver rt640x64.sys and assigned a verdict of Suspicious with a composite risk score of 35/100, indicating some risk signals warranting review (30-59 band).
| Verdict | Suspicious (35/100) |
| YARA matches | 1 |
| Multi-engine detections | 0 / 75 |
| File size | 1331144 bytes |
| Code-signing signer | DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1 |
| Analyzed | 2026-05-03 |
| SHA256 | 3af292bcbd169fd3bf1c3cb90d5b7f4649dd2625afc7ed285df249926367186a |
| SHA1 | 76cdd4860412da4ea62d2745c84a29a28dffadcd |
| MD5 | 4b73b8347f14a3a980e8f5edb1e8ebfe |
The full report includes the kernel Import Address Table, extracted IOCTL dispatch codes, YARA rule names, MITRE ATT&CK technique mapping, and the Authenticode certificate chain. See the analysis methodology for how the risk score is computed, or browse the driver database for related samples.
Related:
Other drivers signed by DigiCert Trusted G4 Code Signing RSA4096 SHA384 2021 CA1 · Browse the full driver database · CVE library · code signing atlas · BYOVD research index · security glossary
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