GridinSoft Threat Intelligence
perf_check.exe threat report
GridinSoft Anti-Malware detection
Detected by GridinSoft before you download
The current ThreatInfo record shows this exact file hash detected as Trojan.Downloader. 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
- Trojan.Downloader
- Recommended action
- Scan and remove
- Last analysis
- 2023-06-14 23:58:37 (2 years ago)
- File hash
- 91bcd86a1da939be29ae5cd693dc96c8
Why it matters
Why GridinSoft flags this file
GridinSoft identifies the sample as Trojan.Downloader, part of the Trojan threat category.
Malware disguised as legitimate software or delivered through deceptive packaging. Related Trojan reports help compare this file with nearby detections, publishers, and hashes.
First seen 2022-09-12 23:42:00 (3 years ago); latest analysis 2023-06-14 23:58:37 (2 years ago).
Company metadata: Wondershare. Product metadata: Wondershare Filmora.
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 Trojan category for related samples and common context.
File context
perf_check.exe is a Windows file recorded in the ThreatInfo database. It is associated with Wondershare Filmora. The reported company name is Wondershare. The current detection status is Trojan.Downloader, based on the latest analysis from 2023-06-14 23:58:37 (2 years ago). ThreatInfo groups this verdict with Trojan reports for broader family-level investigation.
If perf_check.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 Trojan.Downloader.
File Details
| Product Name: | Wondershare Filmora |
| Company Name: | Wondershare |
| MD5: | 91bcd86a1da939be29ae5cd693dc96c8 |
| Size: | 538 KB |
| First Published: | 2022-09-12 23:42:00 (3 years ago) |
| Latest Published: | 2023-06-14 23:58:37 (2 years ago) |
| Status: | Trojan.Downloader (on last analysis) | |
| Analysis Date: | 2023-06-14 23:58:37 (2 years 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.
Common Places:
| %appdata%\thinstall\wondershare filmora x\skel |
ThreatInfo has observed perf_check.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 perf_check.exe across 3 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 33.3% 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 perf_check.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
perf_check.exe is identified as pe for 64-bit systems. The subsystem is Windows CUI. 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.
0d83e26670d4152535938e7072fcb7e8
f4a8d7930641e19dece47f8272dc1fef
116dfde604dc877122cd900c574e16fe
0b6cc0ad74ee3c748f5d4e4f27e06bf0
5496b44d0daa78ef3fd3ff0834fc5f50
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 Trojan.Downloader
This report identifies perf_check.exe by MD5 91bcd86a1da939be29ae5cd693dc96c8. It is part of the Trojan 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.