GridinSoft Threat Intelligence
Win11Assistant.exe threat report
GridinSoft Anti-Malware detection
Detected by GridinSoft before you download
The current ThreatInfo record shows this exact file hash detected as PUP.ChinAd. 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
- PUP.ChinAd
- Recommended action
- Scan and remove
- Last analysis
- 2025-04-28 23:01:25 (a year ago)
- File hash
- f4d56259a8c94cd8a4480288bb5c059c
Why it matters
Why GridinSoft flags this file
GridinSoft identifies the sample as PUP.ChinAd, part of the PUP threat category.
Potentially unwanted programs, bundlers, installers, and utilities with intrusive behavior. Related PUP reports help compare this file with nearby detections, publishers, and hashes.
First seen 2023-12-06 23:37:10 (2 years ago); latest analysis 2025-04-28 23:01:25 (a year ago).
Company metadata: 鲁大师. Product metadata: LdsWin11Assistant.
Signed by Chengdu Qilu Technology 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
- 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 PUP category for related samples and common context.
File context
Win11Assistant.exe is a Windows file recorded in the ThreatInfo database. It is associated with LdsWin11Assistant. The reported company name is 鲁大师. The current detection status is PUP.ChinAd, based on the latest analysis from 2025-04-28 23:01:25 (a year ago). ThreatInfo groups this verdict with PUP reports for broader family-level investigation.
If Win11Assistant.exe 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 PUP.ChinAd.
File Details
| Product Name: | LdsWin11Assistant |
| Company Name: | 鲁大师 |
| MD5: | f4d56259a8c94cd8a4480288bb5c059c |
| Size: | 1 MB |
| First Published: | 2023-12-06 23:37:10 (2 years ago) |
| Latest Published: | 2025-04-28 23:01:25 (a year ago) |
| Status: | PUP.ChinAd (on last analysis) | |
| Analysis Date: | 2025-04-28 23:01:25 (a year 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: | Chengdu Qilu Technology Co. Ltd. |
| Status: | Valid |
The signature on Win11Assistant.exe 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:
| %programfiles%\ludashi |
ThreatInfo has observed Win11Assistant.exe 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 Win11Assistant.exe across 2 countries. Use this signal to compare local evidence with where the sample is most often reported.
The strongest geographic signal for this file is Spain 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 Win11Assistant.exe 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
Win11Assistant.exe 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.
c1c384296d20560e8031aede55861778
9c31d638dfd730a33dc778fe5b1e42d0
b0977f9e56c1f5a0de0a5077bd196146
9d3a78d7c952e784f3d4821a004ef9aa
76bccef77b66d9aded0591b4c9968454
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 PUP.ChinAd
This report identifies Win11Assistant.exe by MD5 f4d56259a8c94cd8a4480288bb5c059c. It is part of the PUP 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.