bttflt.sys - Suspicious (30/100) - DriverShield Analysis
Analysis of bttflt.sys: suspicious verdict, risk score 30/100. 1 YARA match. SHA256 8de3b7c87d88cf37. Kernel imports, IOCTL codes, MITRE ATT&CK, and code-signing details.
bttflt.sys - Analysis Report
DriverShield analyzed the Windows kernel driver bttflt.sys and assigned a verdict of Suspicious with a composite risk score of 30/100, indicating some risk signals warranting review (30-59 band).
| Verdict | Suspicious (30/100) |
| YARA matches | 1 |
| File size | 43832 bytes |
| Code-signing signer | Microsoft Windows |
| Analyzed | 2026-03-22 |
| SHA256 | 8de3b7c87d88cf375417355a7c5052b2de38805b563d61d0e483db4ad96bd741 |
| SHA1 | 19187f28846ad507f06baf416ce4cc5a4cc70cd7 |
| MD5 | 4ff20e869fe2b5a0b8ce2e8be61c7f7f |
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 Microsoft Windows · Browse the full driver database · CVE library · code signing atlas · BYOVD research index · security glossary
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