GridinSoft Threat Intelligence
CORE_RL_zlib_.dll file report
Why it matters
Evidence available for this file
No final classification is available yet.
First seen 2025-04-05 23:02:03 (a year ago); latest analysis 2025-04-05 23:02:03 (a year ago).
Company metadata: Jean-loup Gailly and Mark Adler. Product metadata: zlib data compression library.
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
CORE_RL_zlib_.dll is a Windows file recorded in the ThreatInfo database. It is associated with zlib data compression library. The reported company name is Jean-loup Gailly and Mark Adler. The current detection status is Undefined, based on the latest analysis from 2025-04-05 23:02:03 (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: | zlib data compression library |
| Company Name: | Jean-loup Gailly and Mark Adler |
| MD5: | 02a9ca7537f1ed43dcce8c32a0071ef4 |
| Size: | 74 KB |
| First Published: | 2025-04-05 23:02:03 (a year ago) |
| Latest Published: | 2025-04-05 23:02:03 (a year ago) |
| Status: | Undefined (on last analysis) | |
| Analysis Date: | 2025-04-05 23:02:03 (a year ago) |
Common Places:
| %appdata%\hudun\compressmagician\resources\app\bin |
ThreatInfo has observed CORE_RL_zlib_.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 CORE_RL_zlib_.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 United States 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 CORE_RL_zlib_.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
CORE_RL_zlib_.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.
5ca0f4b52a46d01ddde29045055b69ab
873aae8c1c96206db9c05f0c077c9f45
3daece0110e8b3671b990d52a1a0ab2d
0beca58bd2dadf04edcdef931688f0f8
ad7f1593fdfaff02973dcc54cb06dc8e
a83fe609fd2e7b185ba54471947baf82
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.