Analysis of rteth.sys: clean verdict, risk score 20/100. 1 YARA match. SHA256 cf301ccafb7fcae5. Kernel imports, IOCTL codes, MITRE ATT&CK, and code-signing details.
DriverShield analyzed the Windows kernel driver rteth.sys and assigned a verdict of Clean with a composite risk score of 20/100, indicating no notable risk signals (0-29 band).
| Verdict | Clean (20/100) |
| YARA matches | 1 |
| File size | 48640 bytes |
| Analyzed | 2026-03-22 |
| SHA256 | cf301ccafb7fcae5ceb26d6a28a4c912250e7aa03bf8fa38a5b11d7aff72483a |
| SHA1 | bc09d607b409a6188f687f599a13160fe1a2201b |
| MD5 | 906a0a4996a5f7084b10623f776495b3 |
Version resource data embedded in the rteth.sys PE header, as extracted by the analysis engine.
| File description | Realtek PCIe GBE Family Controller Flight |
|---|---|
| Product | Realtek PCIe GBE Family Adapters |
| Company | Realtek |
| Original filename | RtEth.sys |
| Internal name | RtEth.sys |
| File version | 1.0 (WinBuild.160101.0800) |
| Copyright | Copyright (c) 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 | 30 / 100 |
| Dangerous kernel imports | 30 / 100 |
| IOCTL dispatch surface | 63 / 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 rteth.sys, ranked by exploitation relevance.
| API | Risk | Why it matters |
|---|---|---|
| MmUnmapIoSpace | medium | Moderate risk - system modification capability |
| DbgPrintEx | 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 |
|---|---|---|---|
| 0x0080868B | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #418 |
| 0x00808B8B | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #738 |
| 0x0080908B | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #1058 |
| 0x0080B807 | high | METHOD_NEITHER | FILE_DEVICE_CUSTOM Function #3585 |
| 0x00226423 | high | METHOD_NEITHER | FILE_DEVICE_UNKNOWN Function #2312 |
| 0x002200F0 | medium | METHOD_BUFFERED | FILE_DEVICE_UNKNOWN Function #60 |
| 0x0080B389 | medium | METHOD_IN_DIRECT | FILE_DEVICE_CUSTOM Function #3298 |
| 0x0080530D | medium | METHOD_IN_DIRECT | FILE_DEVICE_CUSTOM Function #1219 |
| 0x0080C481 | medium | METHOD_IN_DIRECT | FILE_DEVICE_CUSTOM Function #288 |
| 0x00808315 | medium | METHOD_IN_DIRECT | FILE_DEVICE_CUSTOM Function #197 |
| 0x00803B15 | medium | METHOD_IN_DIRECT | FILE_DEVICE_CUSTOM Function #3781 |
| 0x00802484 | medium | METHOD_BUFFERED | FILE_DEVICE_CUSTOM Function #2337 |
| 0x008024AC | medium | METHOD_BUFFERED | FILE_DEVICE_CUSTOM Function #2347 |
| 0x008000B8 | medium | METHOD_BUFFERED | FILE_DEVICE_CUSTOM Function #46 |
| 0x00223418 | medium | METHOD_BUFFERED | FILE_DEVICE_UNKNOWN Function #3334 |
| 0x0022341E | medium | METHOD_OUT_DIRECT | FILE_DEVICE_UNKNOWN Function #3335 |
| 0x0022341A | medium | METHOD_OUT_DIRECT | FILE_DEVICE_UNKNOWN Function #3334 |
| 0x00220020 | medium | METHOD_BUFFERED | FILE_DEVICE_UNKNOWN Function #8 |
| 0x00802494 | medium | METHOD_BUFFERED | FILE_DEVICE_CUSTOM Function #2341 |
| 0x00228341 | medium | METHOD_IN_DIRECT | FILE_DEVICE_UNKNOWN Function #208 |
| 0x00340378 | medium | METHOD_BUFFERED | FILE_DEVICE_DISK Function #222 |
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 | 0x6FA9 | 0x7000 | 6.16 | CODE, EXEC, READ |
| .rdata | 0x2B90 | 0x2C00 | 4.44 | IDATA, READ |
| .data | 0x0900 | 0x0400 | 1.6 | IDATA, READ, WRITE |
| .pdata | 0x0474 | 0x0600 | 3.45 | IDATA, READ |
| .idata | 0x02A6 | 0x0400 | 2.86 | IDATA, READ |
| PAGE | 0x0089 | 0x0200 | 2.15 | CODE, EXEC, READ |
| INIT | 0x02DA | 0x0400 | 4.79 | CODE, EXEC, READ, DISCARD |
| GFIDS | 0x009C | 0x0200 | 1.4 | IDATA, READ, DISCARD |
| .rsrc | 0x03D8 | 0x0400 | 3.2 | IDATA, READ, DISCARD |
| .reloc | 0x02C0 | 0x0400 | 4.19 | IDATA, READ, DISCARD |
| Control Flow Guard | Enabled |
|---|---|
| ASLR | Enabled |
| DEP | Enabled |
| Integrity check | Not enforced |
| Mitigation score | 80 / 100 |
| Rule | Severity | Detects |
|---|---|---|
| SUSP_PhysMem | high | Physical memory mapping |
Techniques this driver could enable if loaded by an adversary.
| ID | Technique | Tactic |
|---|---|---|
| T1003.001 | OS Credential Dumping: LSASS Memory | Credential Access |
| T1055.012 | Process Hollowing | Defense Evasion |
| T1068 | Exploitation for Privilege Escalation | Privilege Escalation |
| T1543.003 | Windows Service | Persistence |
| T1553.006 | Code Signing Policy Modification | Defense Evasion |
| 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, rteth.sys is assessed as clean, with no notable risk signals. Its composite risk score is 20/100 (verdict: clean). Always validate findings independently before acting.
rteth.sys has a DriverShield composite risk score of 20/100, placing it in the clean verdict band. SHA256: cf301ccafb7fcae5ceb26d6a28a4c912250e7aa03bf8fa38a5b11d7aff72483a.
rteth.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 · How YARA matching feeds the score · BYOVD research index · full driver database · CVE library · code signing atlas