GridinSoft Threat Intelligence
CheckUpdate.dll file report
Why it matters
Evidence available for this file
No final classification is available yet.
First seen 2017-05-21 21:04:52 (9 years ago); latest analysis 2021-02-13 04:32:38 (5 years ago).
Signed by OSTOTO CO. LIMITED. 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
CheckUpdate.dll is a Windows file recorded in the ThreatInfo database. The current detection status is Undefined, based on the latest analysis from 2021-02-13 04:32:38 (5 years 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
| MD5: | 59f472bf8747c1b1ed0fb0074bc10fa7 |
| Size: | 259 KB |
| First Published: | 2017-05-21 21:04:52 (9 years ago) |
| Latest Published: | 2021-02-13 04:32:38 (5 years ago) |
| Status: | Undefined (on last analysis) | |
| Analysis Date: | 2021-02-13 04:32:38 (5 years ago) |
Overview
| Signed By: | OSTOTO CO. LIMITED |
| Status: | Valid |
The signature on CheckUpdate.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:
| %localappdata%\hwifisvc\updater |
| %localappdata%\hwifisvc |
| %programfiles%\ostotohotspot |
| %programfiles%\ostotosoft\ostotohotspot |
ThreatInfo has observed CheckUpdate.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 CheckUpdate.dll across 32 countries. Use this signal to compare local evidence with where the sample is most often reported.
The strongest geographic signal for this file is Germany with 13.4% 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 CheckUpdate.dll is Windows 10 with 58.6% 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
CheckUpdate.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.
ed6d7734b159d4f556d69943c8c27e25
e1b684520dc8d8662ad20a42bcf90a71
29472574847ffdab67160f2fe97cce52
c7f06b0f6bfc16112fd3fa3b540cedc5
bf34155a068e0b761330ae800a698f56
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.