GridinSoft Threat Intelligence
mrxsmb22.sys threat report
GridinSoft Anti-Malware detection
Detected by GridinSoft before you download
The current ThreatInfo record shows this exact file hash detected as Risk.NetFilter. Download GridinSoft Anti-Malware to scan the device, confirm whether this file is present, and remove the detected object if it is found.
- Detection name
- Risk.NetFilter
- Recommended action
- Scan and remove
- Last analysis
- 2021-01-02 15:41:32 (5 years ago)
- File hash
- a340d8b6ef288b28516a4e8882b28ad1
Why it matters
Why GridinSoft flags this file
GridinSoft identifies the sample as Risk.NetFilter, part of the Risk threat category.
Riskware and dual-use utilities that may be legitimate but require careful review. Related Risk reports help compare this file with nearby detections, publishers, and hashes.
First seen 2019-05-03 14:30:14 (7 years ago); latest analysis 2021-01-02 15:41:32 (5 years ago).
Company metadata: Windows (R) Win 7 DDK provider. Product metadata: Windows (R) Win 7 DDK driver.
Signed by 深圳市世纪中正科技开发有限公司. The signature is reported as valid, but signed files can still be bundled or abused.
ThreatInfo has seen this file in user or system paths listed below. Unexpected locations increase the need for local verification.
Recommended action
What to do next
- Compare the MD5 above with the file found on the device.
- Check whether the file appears in the observed locations or under one of the alternate names.
- Run GridinSoft Anti-Malware to confirm the detection and remove the file if it is present. Review the Risk category for related samples and common context.
File context
mrxsmb22.sys is a Windows file recorded in the ThreatInfo database. It is associated with Windows (R) Win 7 DDK driver. The reported company name is Windows (R) Win 7 DDK provider. The current detection status is Risk.NetFilter, based on the latest analysis from 2021-01-02 15:41:32 (5 years ago). ThreatInfo groups this verdict with Risk reports for broader family-level investigation.
If mrxsmb22.sys appears on your computer unexpectedly, treat it as suspicious. Check its location, digital signature, and recent system changes before allowing it to run. A full anti-malware scan is recommended when this file is detected as Risk.NetFilter.
File Details
| Product Name: | Windows (R) Win 7 DDK driver |
| Company Name: | Windows (R) Win 7 DDK provider |
| MD5: | a340d8b6ef288b28516a4e8882b28ad1 |
| Size: | 56 KB |
| First Published: | 2019-05-03 14:30:14 (7 years ago) |
| Latest Published: | 2021-01-02 15:41:32 (5 years ago) |
| Status: | Risk.NetFilter (on last analysis) | |
| Analysis Date: | 2021-01-02 15:41:32 (5 years ago) |
Detection screenshot
The screenshot is a visual record of a GridinSoft Anti-Malware detection for this sample. Use the hash and metadata above as the primary identifiers when comparing the file on your system.
Overview
| Signed By: | 深圳市世纪中正科技开发有限公司 |
| Status: | Valid |
The signature on mrxsmb22.sys is reported as valid. A valid signature helps confirm publisher identity, but it does not automatically make the file safe if the installer was bundled, abused, or downloaded from an untrusted source.
Common Places:
| %system% |
ThreatInfo has observed mrxsmb22.sys in the locations listed above. Files found in temporary folders, user profile folders, startup locations, or unusual application directories should be reviewed more carefully than files installed under a known program directory.
Geographic signal
Observed country distribution
ThreatInfo has seen mrxsmb22.sys across 1 countries. Use this signal to compare local evidence with where the sample is most often reported.
The strongest geographic signal for this file is Netherlands with 100.0% of observed hits. Geographic distribution can help identify targeted campaigns, regional software bundles, or where a file is most commonly reported.
OS Version:
The most common operating system signal for mrxsmb22.sys is Windows 7 with 100.0% of observed hits. If your system differs from the common profile, check whether the file was introduced by a specific installer, archive, or removable device.
Analysis
mrxsmb22.sys is identified as pe for 64-bit systems. The subsystem is Native. PE header values are useful for triage, especially when they do not match the expected publisher, product, or release timeline.
PE Sections:
Section layout highlights raw-size concentration, repeated names, packer markers, and hashes that can be compared across related samples.
5c2f3626f1afee8c9ca3ba852901f713
f3eb3c084395e4f70b075f7643e76a98
f425c86fa48e33269f447f3eb63c79f9
745dc69ad5f591275891d9d5c91b71f0
e4ff7f11331b00d44e86a443dfea353e
6bc73ad256824bc58f17d56fb5337c46
PE section names and hashes can reveal packing, injected resources, or unusual build artifacts. Sections with uncommon names, very large raw data, or hashes that differ from a trusted copy deserve additional review.
Report conclusion
GridinSoft detects this file as Risk.NetFilter
This report identifies mrxsmb22.sys by MD5 a340d8b6ef288b28516a4e8882b28ad1. It is part of the Risk report group. If the same file is present on your device, scan the system and remove the detected object after confirming the hash and location.