GridinSoft Threat Intelligence
ComputerZ.sys threat report
GridinSoft Anti-Malware detection
Detected by GridinSoft before you download
The current ThreatInfo record shows this exact file hash detected as PUP.ChinAd. 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
- PUP.ChinAd
- Recommended action
- Scan and remove
- Last analysis
- 2024-08-08 23:02:09 (2 years ago)
- File hash
- e432956d19714c65723f9c407ffea0c5
Why it matters
Why GridinSoft flags this file
GridinSoft identifies the sample as PUP.ChinAd, part of the PUP threat category.
Potentially unwanted programs, bundlers, installers, and utilities with intrusive behavior. Related PUP reports help compare this file with nearby detections, publishers, and hashes.
First seen 2020-07-15 21:02:52 (5 years ago); latest analysis 2024-08-08 23:02:09 (2 years ago).
Company metadata: ludashi.com. Product metadata: 鲁大师.
Signed by Chengdu Qilu Technology Co. Ltd.;Microsoft Windows Hardware Compatibility Publisher. 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 PUP category for related samples and common context.
File context
ComputerZ.sys is a Windows file recorded in the ThreatInfo database. It is associated with 鲁大师. The reported company name is ludashi.com. The current detection status is PUP.ChinAd, based on the latest analysis from 2024-08-08 23:02:09 (2 years ago). ThreatInfo groups this verdict with PUP reports for broader family-level investigation.
If ComputerZ.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 PUP.ChinAd.
File Details
| Product Name: | 鲁大师 |
| Company Name: | ludashi.com |
| MD5: | e432956d19714c65723f9c407ffea0c5 |
| Size: | 47 KB |
| First Published: | 2020-07-15 21:02:52 (5 years ago) |
| Latest Published: | 2024-08-08 23:02:09 (2 years ago) |
| Status: | PUP.ChinAd (on last analysis) | |
| Analysis Date: | 2024-08-08 23:02:09 (2 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: | Chengdu Qilu Technology Co. Ltd.;Microsoft Windows Hardware Compatibility Publisher |
| Status: | Valid |
The signature on ComputerZ.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:
| %programfiles% |
ThreatInfo has observed ComputerZ.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 ComputerZ.sys across 8 countries. Use this signal to compare local evidence with where the sample is most often reported.
The strongest geographic signal for this file is Taiwan with 30.4% 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 ComputerZ.sys is Windows 10 with 91.3% 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
ComputerZ.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.
640affc1c568cf5044e590285e467d3e
5065d8ade32f93828284a891b73d87c1
312651a6f76490d97aff95c683a68247
fd05b464613683c59b5d959d38867a2e
d5077d0d5e9326e7a55826a612c2a47f
e826b0786fc6b7e00900c1d71caba58b
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 PUP.ChinAd
This report identifies ComputerZ.sys by MD5 e432956d19714c65723f9c407ffea0c5. It is part of the PUP 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.