Analysis of tape.sys: clean verdict, risk score 23/100. 0 YARA matches. SHA256 e46344fc0c2b11cc. Kernel imports, IOCTL codes, MITRE ATT&CK, and code-signing details.
DriverShield analyzed the Windows kernel driver tape.sys and assigned a verdict of Clean with a composite risk score of 23/100, indicating no notable risk signals (0-29 band).
| Verdict | Clean (23/100) |
| YARA matches | 0 |
| File size | 33280 bytes |
| Analyzed | 2026-03-22 |
| SHA256 | e46344fc0c2b11ccc7b07520ee43a6f908a60cfd02c2272a268f81305deaeb40 |
| SHA1 | dc0c794348fce07db42b8edbc4adb006566e02de |
| MD5 | 57926749656506dab9ecca7ce8e0d154 |
Version resource data embedded in the tape.sys PE header, as extracted by the analysis engine.
| File description | SCSI Tape Class Driver |
|---|---|
| Product | Microsoft® Windows® Operating System |
| Company | Microsoft Corporation |
| Original filename | tape.sys |
| Internal name | tape.sys |
| File version | 10.0.19041.1 (WinBuild.160101.0800) |
| Copyright | © Microsoft Corporation. All rights reserved. |
Each component is scored 0-100 and then weighted into the composite. See the analysis methodology for the exact formula.
| Component | Sub-score |
|---|---|
| Multi-engine consensus | 0 / 100 |
| YARA signature matches | 0 / 100 |
| Dangerous kernel imports | 90 / 100 |
| IOCTL dispatch surface | 33 / 100 |
| Known-vulnerable corpus | 0 / 100 |
| Code-signing state | 50 / 100 |
| Packing and entropy | 0 / 100 |
| Dynamic behaviour | 0 / 100 |
| CVE cross-reference | 0 / 100 |
Kernel-mode APIs resolved from the Import Address Table of tape.sys, ranked by exploitation relevance.
| API | Risk | Why it matters |
|---|---|---|
| MmGetSystemRoutineAddress | high | Potentially dangerous - could be used for privilege escalation or security bypass |
| KeBugCheckEx | medium | Moderate risk - system modification capability |
| ZwSetValueKey | medium | Moderate risk - system modification capability |
| ZwDeleteKey | medium | Moderate risk - system modification capability |
| ZwCreateKey | medium | Moderate risk - system modification capability |
| ExAllocatePoolWithTag | low | Standard kernel API - generally benign |
| ZwOpenKey | low | Standard kernel API - generally benign |
| ZwClose | low | Standard kernel API - generally benign |
| ZwQueryValueKey | low | Standard kernel API - generally benign |
| RtlInitUnicodeString | low | Standard kernel API - generally benign |
| IoCreateSymbolicLink | low | Standard kernel API - generally benign |
| IoDeleteSymbolicLink | low | Standard kernel API - generally benign |
| IoDeleteDevice | low | Standard kernel API - generally benign |
Control codes reachable through the driver dispatch routine. Codes tied to published exploit code are flagged, since they are the primary Bring Your Own Vulnerable Driver (BYOVD) entry points.
| Code | Severity | Transfer | Description |
|---|---|---|---|
| 0x0080B68B | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #3490 |
| 0x002200F0 | medium | METHOD_BUFFERED | FILE_DEVICE_UNKNOWN Function #60 |
| 0x0080248C | medium | METHOD_BUFFERED | FILE_DEVICE_CUSTOM Function #2339 |
| 0x00802484 | medium | METHOD_BUFFERED | FILE_DEVICE_CUSTOM Function #2337 |
| 0x00808D8D | medium | METHOD_IN_DIRECT | FILE_DEVICE_CUSTOM Function #867 |
| 0x00803D0C | medium | METHOD_BUFFERED | FILE_DEVICE_CUSTOM Function #3907 |
| 0x0080B841 | medium | METHOD_IN_DIRECT | FILE_DEVICE_CUSTOM Function #3600 |
| 0x00343D18 | medium | METHOD_BUFFERED | FILE_DEVICE_DISK Function #3910 |
| 0x00343D34 | medium | METHOD_BUFFERED | FILE_DEVICE_DISK Function #3917 |
| 0x0080EC81 | medium | METHOD_IN_DIRECT | FILE_DEVICE_CUSTOM Function #2848 |
| 0x00340384 | medium | METHOD_BUFFERED | FILE_DEVICE_DISK Function #225 |
Section layout and Shannon entropy. High entropy in a code section is a packing or encryption indicator.
| Section | Virtual size | Raw size | Entropy | Flags |
|---|---|---|---|---|
| .text | 0x2129 | 0x2200 | 6.22 | CODE, EXEC, READ |
| .rdata | 0x0A28 | 0x0C00 | 4.18 | IDATA, READ |
| .data | 0x0120 | 0x0200 | 2.21 | IDATA, READ, WRITE |
| .pdata | 0x02B8 | 0x0400 | 3.06 | IDATA, READ |
| .idata | 0x0A38 | 0x0C00 | 4.02 | IDATA, READ |
| PAGE | 0x2E21 | 0x3000 | 6.05 | CODE, EXEC, READ |
| .edata | 0x019D | 0x0200 | 4.3 | IDATA, READ |
| INIT | 0x0082 | 0x0200 | 1.81 | CODE, EXEC, READ, DISCARD |
| GFIDS | 0x0088 | 0x0200 | 1.08 | IDATA, READ, DISCARD |
| .rsrc | 0x03F8 | 0x0400 | 3.26 | IDATA, READ, DISCARD |
| .reloc | 0x0334 | 0x0400 | 4.47 | IDATA, READ, DISCARD |
| Control Flow Guard | Enabled |
|---|---|
| ASLR | Enabled |
| DEP | Enabled |
| Integrity check | Not enforced |
| Mitigation score | 80 / 100 |
Techniques this driver could enable if loaded by an adversary.
| ID | Technique | Tactic |
|---|---|---|
| T1112 | Modify Registry | Defense Evasion |
| T1211 | Exploitation for Defense Evasion | Defense Evasion |
| T1543.003 | Windows Service | Persistence |
| T1547.001 | Registry Run Keys | Persistence |
| T1553.002 | Subvert Trust Controls: Code Signing | Defense Evasion |
| T1553.006 | Code Signing Policy Modification | Defense Evasion |
| T1569.002 | System Services: Service Execution | Execution |
| T1652 | Device Driver Discovery | Discovery |
Engine angr, status no_findings, 0 paths explored at a maximum depth of 0. Vulnerability classes reached: 0. Exploitable paths: 0.
Based on DriverShield static and dynamic analysis, tape.sys is assessed as clean, with no notable risk signals. Its composite risk score is 23/100 (verdict: clean). Always validate findings independently before acting.
tape.sys has a DriverShield composite risk score of 23/100, placing it in the clean verdict band. SHA256: e46344fc0c2b11ccc7b07520ee43a6f908a60cfd02c2272a268f81305deaeb40.
tape.sys is a Windows kernel-mode driver (.sys) analyzed by DriverShield for vulnerabilities, BYOVD abuse potential, and malware indicators.
Related: What an IOCTL dispatch code is · BYOVD research index · full driver database · CVE library · code signing atlas