GridinSoft Threat Intelligence
zlib1.dll.removed threat report
GridinSoft Anti-Malware detection
Detected by GridinSoft before you download
The current ThreatInfo record shows this exact file hash detected as Adware.MPC. Download GridinSoft Anti-Malware to scan the device, confirm whether this file is present, and remove the detected object if it is found.
- Detection name
- Adware.MPC
- Recommended action
- Scan and remove
- Last analysis
- 2022-11-20 23:37:46 (3 years ago)
- File hash
- 90ba6fb71808752711f8bd0046ebacbb
Why it matters
Why GridinSoft flags this file
GridinSoft identifies the sample as Adware.MPC, part of the Adware threat category.
Programs that inject advertising, change browser behavior, or monetize traffic through bundled components. Related Adware reports help compare this file with nearby detections, publishers, and hashes.
First seen 2017-06-27 09:09:02 (8 years ago); latest analysis 2022-11-20 23:37:46 (3 years ago).
Product metadata: zlib.
Signed by DotCash Limited. The signature is reported as valid, but signed files can still be bundled or abused.
This hash has appeared under multiple file names, which can happen with repackaging, bundling, or deliberate renaming.
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
- Compare the MD5 above with the file found on the device.
- Check whether the file appears in the observed locations or under one of the alternate names.
- Run GridinSoft Anti-Malware to confirm the detection and remove the file if it is present. Review the Adware category for related samples and common context.
File context
zlib1.dll.removed is a Windows file recorded in the ThreatInfo database. It is associated with zlib. The current detection status is Adware.MPC, based on the latest analysis from 2022-11-20 23:37:46 (3 years ago). ThreatInfo groups this verdict with Adware reports for broader family-level investigation.
If zlib1.dll.removed appears on your computer unexpectedly, treat it as suspicious. Check its location, digital signature, and recent system changes before allowing it to run. A full anti-malware scan is recommended when this file is detected as Adware.MPC.
File Details
| Product Name: | zlib |
| MD5: | 90ba6fb71808752711f8bd0046ebacbb |
| Size: | 112 KB |
| First Published: | 2017-06-27 09:09:02 (8 years ago) |
| Latest Published: | 2022-11-20 23:37:46 (3 years ago) |
| Status: | Adware.MPC (on last analysis) | |
| Analysis Date: | 2022-11-20 23:37:46 (3 years ago) |
Detection screenshot
The screenshot is a visual record of a GridinSoft Anti-Malware detection for this sample. Use the hash and metadata above as the primary identifiers when comparing the file on your system.
Overview
| Signed By: | DotCash Limited |
| Status: | Valid |
The signature on zlib1.dll.removed 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:
| %sysdrive%\windows.old.001\program files (x86)\mpc cleaner |
| %programfiles%\mpc cleaner |
| %programfiles% |
| %sysdrive%\desktop backup\program files (x86)\mpc cleaner\temp\upgrade |
ThreatInfo has observed zlib1.dll.removed 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.
File Names:
2 observed namesThis hash has been seen with multiple file names. Alternate names can appear when software is updated, copied between folders, packed by an installer, or deliberately renamed to avoid recognition. Compare the exact MD5 above before assuming two names refer to the same file.
Geographic signal
Observed country distribution
ThreatInfo has seen zlib1.dll.removed across 3 countries. Use this signal to compare local evidence with where the sample is most often reported.
The strongest geographic signal for this file is Russian Federation with 50.0% 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 zlib1.dll.removed is Windows 7 with 50.0% 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
zlib1.dll.removed is identified as pe for 32-bit 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.
PE Sections:
Section layout highlights raw-size concentration, repeated names, packer markers, and hashes that can be compared across related samples.
69a143d8d053eec2355103f796438924
2725e14ffd2eaba50f2349cd06c95ebc
215139de9d7e94625fcfd15a5e90e38a
00000000000000000000000000000000
37aaeb0ea8e910cb35a938f48febfe0b
15e23bc19da6527106435430f72f8a3d
d028f1d5bbeb13de29bbb83cd5bb1e19
57c60abf9ce4f6b6b32b9a944e5d34e9
9083bbb003e4841dca6a04632df41a35
0a2f8e5c99eca6480786fe986edc9757
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
GridinSoft detects this file as Adware.MPC
This report identifies zlib1.dll.removed by MD5 90ba6fb71808752711f8bd0046ebacbb. It is part of the Adware report group. If the same file is present on your device, scan the system and remove the detected object after confirming the hash and location.