GridinSoft Threat Intelligence
CPUBenchmark_x64.dll 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
- 2025-04-28 23:01:27 (a year ago)
- File hash
- 85ccaa3db9ee7949ee229c68e8c8e227
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 2024-11-05 23:01:35 (2 years ago); latest analysis 2025-04-28 23:01:27 (a year ago).
Company metadata: www.ludashi.com. Product metadata: Master Lu.
Signed by 成都奇鲁科技有限公司;Chengdu Qilu Technology Co. Ltd.. 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
CPUBenchmark_x64.dll is a Windows file recorded in the ThreatInfo database. It is associated with Master Lu. The reported company name is www.ludashi.com. The current detection status is PUP.ChinAd, based on the latest analysis from 2025-04-28 23:01:27 (a year ago). ThreatInfo groups this verdict with PUP reports for broader family-level investigation.
If CPUBenchmark_x64.dll 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: | Master Lu |
| Company Name: | www.ludashi.com |
| MD5: | 85ccaa3db9ee7949ee229c68e8c8e227 |
| Size: | 22 MB |
| First Published: | 2024-11-05 23:01:35 (2 years ago) |
| Latest Published: | 2025-04-28 23:01:27 (a year ago) |
| Status: | PUP.ChinAd (on last analysis) | |
| Analysis Date: | 2025-04-28 23:01:27 (a year 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: | 成都奇鲁科技有限公司;Chengdu Qilu Technology Co. Ltd. |
| Status: | Valid |
The signature on CPUBenchmark_x64.dll 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%\ludashi |
ThreatInfo has observed CPUBenchmark_x64.dll 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 CPUBenchmark_x64.dll across 2 countries. Use this signal to compare local evidence with where the sample is most often reported.
The strongest geographic signal for this file is China with 50.0% 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 CPUBenchmark_x64.dll 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
CPUBenchmark_x64.dll is identified as pe for 64-bit systems. The subsystem is Windows GUI. 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.
66f2f6870d4680290929b69a585b6187
00f78593c1a92aa05069325e53a175d2
bd6babcf0027d271ecb0a8cb8fa5e219
e6ec9bbb214a4885fe0669ef0754ffa9
e74436338f108818b18e25f64747a288
075431ec76868e7dba3f58e4b0c037f1
772eb51dcf45425c91b9cd0e09e7f93f
9cfb8e34b4c6451a1dd25635a087648a
11eac308429022ca5254aa8c02596262
0d2cf2a48f1dfd783a074962f49e0da7
9c791803eb22b0c2cc64bf7ca296ac5b
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 CPUBenchmark_x64.dll by MD5 85ccaa3db9ee7949ee229c68e8c8e227. 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.