gdrv.sys - Malicious (88/100) - DriverShield Analysis
Analysis of gdrv.sys: malicious verdict, risk score 88/100. 4 YARA matches, 9/76 multi-engine detections. SHA256 31f4cfb4c71da441. Kernel imports, IOCTL codes, MITRE ATT&CK, and code-signing details.
gdrv.sys - Analysis Report
DriverShield analyzed the Windows kernel driver gdrv.sys and assigned a verdict of Malicious with a composite risk score of 88/100, indicating malicious indicators (80-100 band).
| Verdict | Malicious (88/100) |
| YARA matches | 4 |
| Multi-engine detections | 9 / 76 |
| File size | 26192 bytes |
| Code-signing signer | Symantec Time Stamping Services CA - G2 |
| Analyzed | 2026-03-23 |
| SHA256 | 31f4cfb4c71da44120752721103a16512444c13c2ac2d857a7e6f13cb679b427 |
| SHA1 | fe10018af723986db50701c8532df5ed98b17c39 |
| MD5 | 9ab9f3b75a2eb87fafb1b7361be9dfb3 |
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 Symantec Time Stamping Services CA - G2 · Browse the full driver database · CVE library · code signing atlas · BYOVD research index · security glossary
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