GridinSoft Threat Intelligence
Bhbase.sys file report
Why it matters
Evidence available for this file
No final classification is available yet.
First seen 2017-05-21 09:02:02 (9 years ago); latest analysis 2025-05-14 23:01:19 (a year ago).
Company metadata: Baidu, Inc.. Product metadata: Baidu Antivirus.
Signed by Baidu Online Network Technology (Beijing) 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
- 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
Bhbase.sys is a Windows file recorded in the ThreatInfo database. It is associated with Baidu Antivirus. The reported company name is Baidu, Inc.. The current detection status is Undefined, based on the latest analysis from 2025-05-14 23:01:19 (a year 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: | Baidu Antivirus |
| Company Name: | Baidu, Inc. |
| MD5: | 40fd20be56d81e8fdf572b1cdecea5e8 |
| Size: | 45 KB |
| First Published: | 2017-05-21 09:02:02 (9 years ago) |
| Latest Published: | 2025-05-14 23:01:19 (a year ago) |
| Status: | Undefined (on last analysis) | |
| Analysis Date: | 2025-05-14 23:01:19 (a year ago) |
Overview
| Signed By: | Baidu Online Network Technology (Beijing) Co.,Ltd. |
| Status: | Valid |
The signature on Bhbase.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%\pc faster\5.1.0.0 |
| %programfiles%\pc faster |
| %programfiles%\pc faster\update |
| %programfiles% |
ThreatInfo has observed Bhbase.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 Bhbase.sys across 77 countries. Use this signal to compare local evidence with where the sample is most often reported.
The strongest geographic signal for this file is Thailand with 19.2% 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 Bhbase.sys is Windows 7 with 54.9% 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
Bhbase.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.
b72a8b1d6bf51d85109c394b658b8d61
476e07660d363ecb4f7800bf3b918a37
c51161ab3b46f2507012261307c031f0
fd641c71cabd26abe892ba758e998cea
6a59c681f6e0648181fdcae66a4e2fa4
91795fa8d53aa1bac63e0b5432a08034
6a80cb5bf74a81705555e2a996853bf2
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.