GridinSoft Threat Intelligence
vJoy.sys threat report
GridinSoft Anti-Malware detection
Detected by GridinSoft before you download
The current ThreatInfo record shows this exact file hash detected as Adware.InstallCore. 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
- Adware.InstallCore
- Recommended action
- Scan and remove
- Last analysis
- 2026-01-29 23:01:00 (4 months ago)
- File hash
- fd549a6acd97ab572c2cac4bd4f702d6
Why it matters
Why GridinSoft flags this file
GridinSoft identifies the sample as Adware.InstallCore, part of the Adware threat category.
Programs that inject advertising, change browser behavior, or monetize traffic through bundled components. Related Adware reports help compare this file with nearby detections, publishers, and hashes.
First seen 2026-01-29 23:01:00 (4 months ago); latest analysis 2026-01-29 23:01:00 (4 months ago).
Company metadata: Shaul Eizikovich. Product metadata: vJoy.
Signed by Open Source Developer. The signature is not reported as trusted and valid, which can indicate tampering, repackaging, or copied publisher data.
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 Adware category for related samples and common context.
File context
vJoy.sys is a Windows file recorded in the ThreatInfo database. It is associated with vJoy. The reported company name is Shaul Eizikovich. The current detection status is Adware.InstallCore, based on the latest analysis from 2026-01-29 23:01:00 (4 months ago). ThreatInfo groups this verdict with Adware reports for broader family-level investigation.
If vJoy.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 Adware.InstallCore.
File Details
| Product Name: | vJoy |
| Company Name: | Shaul Eizikovich |
| MD5: | fd549a6acd97ab572c2cac4bd4f702d6 |
| Size: | 34 KB |
| First Published: | 2026-01-29 23:01:00 (4 months ago) |
| Latest Published: | 2026-01-29 23:01:00 (4 months ago) |
| Status: | Adware.InstallCore (on last analysis) | |
| Analysis Date: | 2026-01-29 23:01:00 (4 months 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: | Open Source Developer |
| Status: | Invalid (digital signature could be stolen or file could be patched) |
The signature on vJoy.sys is not reported as trusted and valid. Invalid or suspicious signature data can indicate tampering, repackaging, or an unrelated file using copied publisher information.
Common Places:
| %profile%\downloads\sdi_1.26.0\drivers\dp_xvirtual_26000.7z\vjoy\forced\allx86 |
ThreatInfo has observed vJoy.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 vJoy.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 Germany 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 vJoy.sys is Windows 10 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
vJoy.sys is identified as pe for 32-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.
b26327532c583fdd7e695e65138c20e9
b69a70b584cc7f23d56090f8f357dcda
fd813d3b06b67dbe8c35b4b1dda04e89
769b4caa840b2d2933ed5d0e5ef3540d
cce3067f910db8b85aa80d3f80d076fc
49f39ea8125b7f931cc4defa8b8a284d
88ed6bd18f0f67f2c033c22437b32aab
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 Adware.InstallCore
This report identifies vJoy.sys by MD5 fd549a6acd97ab572c2cac4bd4f702d6. It is part of the Adware 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.