GridinSoft Threat Intelligence
LsfSdk.dll file report
Why it matters
Evidence available for this file
No final classification is available yet.
First seen 2025-04-05 23:01:52 (a year ago); latest analysis 2025-04-05 23:01:59 (a year ago).
Product metadata: LenovoIdWinSdk.
Signed by Lenovo (Beijing) Co., Ltd.. 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
LsfSdk.dll is a Windows file recorded in the ThreatInfo database. It is associated with LenovoIdWinSdk. The current detection status is Undefined, based on the latest analysis from 2025-04-05 23:01:59 (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: | LenovoIdWinSdk |
| MD5: | 76588ab5019f775508c83561b97a8c05 |
| Size: | 4 MB |
| First Published: | 2025-04-05 23:01:52 (a year ago) |
| Latest Published: | 2025-04-05 23:01:59 (a year ago) |
| Status: | Undefined (on last analysis) | |
| Analysis Date: | 2025-04-05 23:01:59 (a year ago) |
Overview
| Signed By: | Lenovo (Beijing) Co., Ltd. |
| Status: | Valid |
The signature on LsfSdk.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:
| %appdata%\hudun |
| %appdata%\hudun\compressmagician\resources\app |
ThreatInfo has observed LsfSdk.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 LsfSdk.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 LsfSdk.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
LsfSdk.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.
aa697dc588ed49a00c4fadd4debe4ad4
fc44b45fca07541ff99da8a93a4c6a67
9725ff03dbd341a4ffac0ca621fd582e
845dfa47e63627d53b19cdb42a1c086a
3c1d6a3df6ab89ad2b57aee0c7af49a9
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.