GridinSoft Threat Intelligence
efidiffeqr.dll threat report
GridinSoft Anti-Malware detection
Detected by GridinSoft before you download
The current ThreatInfo record shows this exact file hash detected as Trojan.ExtHeur!. 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.ExtHeur!
- Recommended action
- Scan and remove
- Last analysis
- 2024-09-19 23:06:31 (2 years ago)
- File hash
- ed00af870622c527d2aa156f6cfb7829
Why it matters
Why GridinSoft flags this file
GridinSoft identifies the sample as Trojan.ExtHeur!, 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 2024-05-17 23:00:56 (2 years ago); latest analysis 2024-09-19 23:06:31 (2 years ago).
Company metadata: PTC. Product metadata: PTC Mathcad Prime.
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
efidiffeqr.dll is a Windows file recorded in the ThreatInfo database. It is associated with PTC Mathcad Prime. The reported company name is PTC. The current detection status is Trojan.ExtHeur!, based on the latest analysis from 2024-09-19 23:06:31 (2 years ago). ThreatInfo groups this verdict with Trojan reports for broader family-level investigation.
If efidiffeqr.dll 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.ExtHeur!.
File Details
| Product Name: | PTC Mathcad Prime |
| Company Name: | PTC |
| MD5: | ed00af870622c527d2aa156f6cfb7829 |
| Size: | 353 KB |
| First Published: | 2024-05-17 23:00:56 (2 years ago) |
| Latest Published: | 2024-09-19 23:06:31 (2 years ago) |
| Status: | Trojan.ExtHeur! (on last analysis) | |
| Analysis Date: | 2024-09-19 23:06:31 (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:
| %programfiles%\ptc\mathcad prime 9.0.0.0 |
ThreatInfo has observed efidiffeqr.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 efidiffeqr.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 Bolivia 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 efidiffeqr.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
efidiffeqr.dll is identified as pe for 32-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.
.NET Info:
| MVID: | cb9ba4fe-2c28-48b8-a0a5-fb9dade855a7 |
PE Sections:
Section layout highlights raw-size concentration, repeated names, packer markers, and hashes that can be compared across related samples.
a35334edff9c8850c112cea26e837b0c
a79e89154ada50282219c3ac472d7008
4fe54c8f7eff64e2cedac62052ea8b05
b7665f83c44c05b99fa06dac85e70417
3c04a1a4ee57d8ddb5fb3bdc26522628
df8ebb99b51d49fe4c5bd9259c447f3b
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.ExtHeur!
This report identifies efidiffeqr.dll by MD5 ed00af870622c527d2aa156f6cfb7829. 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.