GridinSoft Threat Intelligence
bz2.dll file report
Why it matters
Evidence available for this file
No final classification is available yet.
First seen 2025-04-12 23:01:50 (a year ago); latest analysis 2025-04-12 23:01:50 (a year ago).
Signed by Beijing iQIYI Science & 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
- 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
bz2.dll is a Windows file recorded in the ThreatInfo database. It is associated with bz2. The reported company name is BZ. The current detection status is Undefined, based on the latest analysis from 2025-04-12 23:01:50 (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: | bz2 |
| Company Name: | BZ |
| MD5: | 61b8ccdd371dc0153830817fd84e9b99 |
| Size: | 85 KB |
| First Published: | 2025-04-12 23:01:50 (a year ago) |
| Latest Published: | 2025-04-12 23:01:50 (a year ago) |
| Status: | Undefined (on last analysis) | |
| Analysis Date: | 2025-04-12 23:01:50 (a year ago) |
Overview
| Signed By: | Beijing iQIYI Science & Technology Co., Ltd. |
| Status: | Valid |
The signature on bz2.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%\iqiyi video\lstyle |
ThreatInfo has observed bz2.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 bz2.dll 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 China 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 bz2.dll is Windows 7 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
bz2.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.
c54be28396cadd7497079576b8977614
9719e4c8a6f986881e9fdb09c1f01776
6873342f11859da79876e6a5f343b07a
cb5c56d051ced639315546b26a219978
81b193dc799fbe3671049d3d95fc2055
e3a6568fbb514b1eb67b50130e183592
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.