zlib1.dll file report
ThreatInfo file report
zlib1.dll
This report summarizes the file identity, detection status, publisher metadata, observed locations, and technical indicators for zlib1.dll. ThreatInfo does not have a final classification for this sample yet.
zlib1.dll is a Windows file recorded in the ThreatInfo database. It is associated with zlib. The current detection status is Undefined, based on the latest analysis from 2025-07-03 23:02:54 (10 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.
File Details
| Product Name: | zlib |
| MD5: | e4d7dd0a413519b21621ccb7d1d78fa4 |
| Size: | 110 KB |
| First Published: | 2017-05-27 13:05:58 (8 years ago) |
| Latest Published: | 2025-07-03 23:02:54 (10 months ago) |
| Status: | Undefined (on last analysis) | |
| Analysis Date: | 2025-07-03 23:02:54 (10 months ago) |
Common Places:
| %appdata%\macromedia\realtek hd |
| %appdata% |
| %localappdata%\playfree browser\issch |
| %appdata%\winupdate\g |
| %profile%\dmin\application data\steam\reversed |
| %appdata%\daemon tools lite\realtek hd |
| %profile%\ndrzej.dom-67221bd2283\dane aplikacji\steam\reversed |
| %appdata%\steam\reversed |
| %localappdata%\mpress\realtek hd |
| %localappdata%\mail.ru\realtek hd |
ThreatInfo has observed zlib1.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.
Geography:
| 53.8% | ||
| 20.7% | ||
| 3.6% | ||
| 2.8% | ||
| 2.2% | ||
| 2.0% | ||
| 1.8% | ||
| 1.8% | ||
| 1.2% | ||
| 1.0% | ||
| 1.0% | ||
| 0.8% | ||
| 0.6% | ||
| 0.6% | ||
| 0.6% | ||
| 0.6% | ||
| 0.4% | ||
| 0.4% | ||
| 0.4% | ||
| 0.4% | ||
| 0.4% | ||
| 0.2% | ||
| 0.2% | ||
| 0.2% | ||
| 0.2% | ||
| 0.2% | ||
| 0.2% | ||
| 0.2% | ||
| 0.2% | ||
| 0.2% | ||
| 0.2% | ||
| 0.2% | ||
| 0.2% | ||
| 0.2% | ||
| 0.2% |
The strongest geographic signal for this file is Russian Federation with 53.8% of observed hits. Geographic distribution can help identify targeted campaigns, regional software bundles, or where a file is most commonly reported.
OS Version:
| Windows 7 | 46.5% | |
| Windows 10 | 41.9% | |
| Windows 8.1 | 9.6% | |
| Windows 8 | 1.0% | |
| Windows XP | 0.8% | |
| Windows Embedded 8.1 | 0.2% |
The most common operating system signal for zlib1.dll is Windows 7 with 46.5% 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
zlib1.dll is identified as pe for 32 systems. The subsystem is Windows CUI. PE header values are useful for triage, especially when they do not match the expected publisher, product, or release timeline.
| Subsystem: | Windows CUI |
| PE Type: | pe |
| OS Bitness: | 32 |
| Image Base: | 0x62e80000 |
| Entry Address: | 0x00001058 |
PE Sections:
| Name | Size of data | MD5 |
| .text | 77312 | ff787f23a50886e2ca6fcd6bc5ec6051 |
| .data | 512 | da56184f8f49e9384df67d137fcc3c59 |
| .rdata | 19456 | 3104f413e3afff6c47959665b7b23daa |
| /4 | 7680 | 691aed3e7ee671d5f58cd88661259674 |
| .bss | 0 | 00000000000000000000000000000000 |
| .edata | 2048 | 72f327cfbc7bdc88438fd193d0bf4389 |
| .idata | 1536 | 6259dfa76f9ef3017dd5c4a1921aad48 |
| .CRT | 512 | a5d4f82e3173d0c33fce5af4896fd5f0 |
| .tls | 512 | c261be5c74da6c650113a2345a5eab19 |
| .rsrc | 1024 | dda5e314cf493631d29f49f50430aaad |
| .reloc | 1536 | c87c8abd8269354f32dfdf860d0e83b4 |
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.
More information:
