GridinSoft Threat Intelligence

zlibwapi.dll file report

Under review File reputation report
MD5 281a2f7d376400585f5c88eade8c5bb8
Latest seen 2025-10-24 23:00:25 (7 months ago)
First seen 2018-09-11 18:10:42 (7 years ago)
Size 75 KB
Product ZLib.DLL
Signed by ParetoLogic Inc.

Why it matters

Evidence available for this file

Detection

No final classification is available yet.

Timeline

First seen 2018-09-11 18:10:42 (7 years ago); latest analysis 2025-10-24 23:00:25 (7 months ago).

Publisher context

Product metadata: ZLib.DLL.

Digital signature

Signed by ParetoLogic Inc.. The signature is reported as valid, but signed files can still be bundled or abused.

Observed locations

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

  1. Use the hash and metadata below to verify the exact file identity.
  2. Review publisher, signature, paths, and PE details for inconsistencies.
  3. Run a local scan if the file appears unexpectedly or starts with Windows.

zlibwapi.dll is a Windows file recorded in the ThreatInfo database. It is associated with ZLib.DLL. The current detection status is Undefined, based on the latest analysis from 2025-10-24 23:00:25 (7 months 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.

Product Name: ZLib.DLL
MD5: 281a2f7d376400585f5c88eade8c5bb8
Size: 75 KB
First Published: 2018-09-11 18:10:42 (7 years ago)
Latest Published: 2025-10-24 23:00:25 (7 months ago)
Status: Undefined (on last analysis)
Analysis Date: 2025-10-24 23:00:25 (7 months ago)
Signed By: ParetoLogic Inc.
Status: Valid

The signature on zlibwapi.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.

%programfiles%\paretologic
%sysdrive%\windows.old\program files (x86)\paretologic

ThreatInfo has observed zlibwapi.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.

Windows 10 73.9%
Windows 7 19.1%
Windows 8.1 5.2%
Windows XP 0.9%
Windows Server 2016 0.4%
Windows 8 0.4%

The most common operating system signal for zlibwapi.dll is Windows 10 with 73.9% 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.

zlibwapi.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.

Format pe
Architecture 32-bit
Subsystem Windows GUI
Entry point 0x0000cf48
Image base 0x10000000

PE Sections:

Sections 5
Raw data 71168

Section layout highlights raw-size concentration, repeated names, packer markers, and hashes that can be compared across related samples.

.text 49152 bytes · 69.1% of section data
MD5 46b9140e34d3ad31d3ee12bce15a11b3
.rdata 19456 bytes · 27.3% of section data
MD5 7f08460fcc45c5cd5f692c71ab888a97
.data 512 bytes · 0.7% of section data
MD5 8145da8cff14bd3e30a5be079a3a18e6
.rsrc 1024 bytes · 1.4% of section data
MD5 b8848a32a077c221f40059a0c6de1197
.reloc 1024 bytes · 1.4% of section data
MD5 30c294f5ca9a5d38313455b1287ed166

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.

Scan with GridinSoft Anti-Malware Use a local scan if the file origin or behavior is unclear. Check this hash on VirusTotal

Recommended next steps

  • Compare the local file MD5 with 281a2f7d376400585f5c88eade8c5bb8.
  • Check the file path, publisher, and signature against the details in this report.
  • Run a GridinSoft scan if the source, path, or behavior looks unusual.