GridinSoft Threat Intelligence
ASCService.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.SystemOptimizer. 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.SystemOptimizer
- Recommended action
- Scan and remove
- Last analysis
- 2025-12-28 23:00:16 (5 months ago)
- File hash
- bfbdd07601d2963d9cba8036c9f18dea
Why it matters
Why GridinSoft flags this file
GridinSoft identifies the sample as PUP.SystemOptimizer, 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 2025-12-02 23:10:31 (5 months ago); latest analysis 2025-12-28 23:00:16 (5 months ago).
Company metadata: IObit. Product metadata: Advanced SystemCare Ultimate.
Signed by IObit 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
ASCService.exe is a Windows file recorded in the ThreatInfo database. It is associated with Advanced SystemCare Ultimate. The reported company name is IObit. The current detection status is PUP.SystemOptimizer, based on the latest analysis from 2025-12-28 23:00:16 (5 months ago). ThreatInfo groups this verdict with PUP reports for broader family-level investigation.
If ASCService.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.SystemOptimizer.
File Details
| Product Name: | Advanced SystemCare Ultimate |
| Company Name: | IObit |
| MD5: | bfbdd07601d2963d9cba8036c9f18dea |
| Size: | 1 MB |
| First Published: | 2025-12-02 23:10:31 (5 months ago) |
| Latest Published: | 2025-12-28 23:00:16 (5 months ago) |
| Status: | PUP.SystemOptimizer (on last analysis) | |
| Analysis Date: | 2025-12-28 23:00:16 (5 months 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. |
| Status: | Valid |
The signature on ASCService.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%\iobit |
ThreatInfo has observed ASCService.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 ASCService.exe 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 France 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 ASCService.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
ASCService.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.
399053800fa9dc46c9847f4dec7e80ce
9f29f89172e035de8f97f318781c1cfc
ba2e60de233938dd06b91540c4f9ee5f
d41d8cd98f00b204e9800998ecf8427e
71a8b3cf1950bbd9001281881650eb36
a8fe81fb3152f1f555370e02a33d93d3
d41d8cd98f00b204e9800998ecf8427e
cf132eba86f94f9f9122de29e370d2d9
b5d0ab9a992c7922707933f25149fae7
a3f70987fff0b9715f3a3b09d7b131ac
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.SystemOptimizer
This report identifies ASCService.exe by MD5 bfbdd07601d2963d9cba8036c9f18dea. 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.