GridinSoft Threat Intelligence
AscFileFilter.sys threat report
GridinSoft Anti-Malware detection
Detected by GridinSoft before you download
The current ThreatInfo record shows this exact file hash detected as General Threat. 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
- General Threat
- Recommended action
- Scan and remove
- Last analysis
- 2026-05-02 23:01:36 (3 weeks ago)
- File hash
- 38b03fcbf77c508fac5ff2b95c9ac5ee
Why it matters
Why GridinSoft flags this file
GridinSoft identifies the sample as General Threat.
First seen 2026-05-02 23:01:25 (3 weeks ago); latest analysis 2026-05-02 23:01:36 (3 weeks ago).
Company metadata: IObit. Product metadata: Advanced SystemCare.
Signed by IObit CO., LTD;Microsoft Windows Hardware Compatibility Publisher. 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.
File context
AscFileFilter.sys is a Windows file recorded in the ThreatInfo database. It is associated with Advanced SystemCare. The reported company name is IObit. The current detection status is General Threat, based on the latest analysis from 2026-05-02 23:01:36 (3 weeks ago).
If AscFileFilter.sys 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 General Threat.
File Details
| Product Name: | Advanced SystemCare |
| Company Name: | IObit |
| MD5: | 38b03fcbf77c508fac5ff2b95c9ac5ee |
| Size: | 40 KB |
| First Published: | 2026-05-02 23:01:25 (3 weeks ago) |
| Latest Published: | 2026-05-02 23:01:36 (3 weeks ago) |
| Status: | General Threat (on last analysis) | |
| Analysis Date: | 2026-05-02 23:01:36 (3 weeks 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: | IObit CO., LTD;Microsoft Windows Hardware Compatibility Publisher |
| Status: | Valid |
The signature on AscFileFilter.sys 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%\iobit\advanced systemcare\drivers |
ThreatInfo has observed AscFileFilter.sys 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 AscFileFilter.sys 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 Brazil 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 AscFileFilter.sys 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
AscFileFilter.sys is identified as pe for 32-bit systems. The subsystem is Native. 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.
287714f65202278ac4cc6b2373d59740
bc46418ccc06edcdfa4ba74874243099
312651a6f76490d97aff95c683a68247
88448fe09fa070ba76fc4336a61915da
5d9f24bf48007b77d6e883e713db1c04
36322cdbc5f3e245cf75f1b073609d64
b577b4f0fa14b411a81798092b923562
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 General Threat
This report identifies AscFileFilter.sys by MD5 38b03fcbf77c508fac5ff2b95c9ac5ee. If the same file is present on your device, scan the system and remove the detected object after confirming the hash and location.