GridinSoft Threat Intelligence
CleanPage.dll file report
Why it matters
Evidence available for this file
No final classification is available yet.
First seen 2018-05-17 08:07:31 (8 years ago); latest analysis 2024-09-08 23:01:12 (2 years ago).
Company metadata: www.ludashi.com. Product metadata: 鲁大师.
Signed by Qihoo 360 Software (Beijing) Company Limited. 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
- Use the hash and metadata below to verify the exact file identity.
- Review publisher, signature, paths, and PE details for inconsistencies.
- Run a local scan if the file appears unexpectedly or starts with Windows.
File context
CleanPage.dll is a Windows file recorded in the ThreatInfo database. It is associated with 鲁大师. The reported company name is www.ludashi.com. The current detection status is Undefined, based on the latest analysis from 2024-09-08 23:01:12 (2 years ago).
ThreatInfo does not have a final classification for this file yet. Use the technical details below to compare the hash, size, signature, and observed locations with the copy found on your device.
File Details
| Product Name: | 鲁大师 |
| Company Name: | www.ludashi.com |
| MD5: | 9b0dc9b41e9768ae9ad31172aaa893ce |
| Size: | 705 KB |
| First Published: | 2018-05-17 08:07:31 (8 years ago) |
| Latest Published: | 2024-09-08 23:01:12 (2 years ago) |
| Status: | Undefined (on last analysis) | |
| Analysis Date: | 2024-09-08 23:01:12 (2 years ago) |
Overview
| Signed By: | Qihoo 360 Software (Beijing) Company Limited |
| Status: | Valid |
The signature on CleanPage.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 |
| %programfiles%\ludashi\ludashi |
ThreatInfo has observed CleanPage.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 CleanPage.dll across 12 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 49.4% 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 CleanPage.dll is Windows 10 with 90.0% 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
CleanPage.dll is identified as pe for 32-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.
affdbef715f9df7abf631826248f7d36
1dfbb00b2a20fe909887c1944895012d
de7be2edf6be73481bf2592ab640aa7e
4d5f09c5c11af32661dc260899174746
5fa5af2873741d4b142055611a7c220c
e41f8aa5655804481f873659ee131f3e
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
This file is still under review
ThreatInfo has not assigned a final verdict yet. Compare the file hash, location, signature, and publisher before trusting the file on a production system.