GridinSoft Threat Intelligence
xul.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.Heur!. 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.Heur!
- Recommended action
- Scan and remove
- Last analysis
- 2026-05-24 09:00:22 (3 days ago)
- File hash
- 40978723f917b0cbb57133b96d84fbe2
Why it matters
Why GridinSoft flags this file
GridinSoft identifies the sample as Trojan.Heur!, 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 2026-05-24 09:00:22 (3 days ago); latest analysis 2026-05-24 09:00:22 (3 days ago).
Company metadata: Mozilla Foundation. Product metadata: Tor Browser.
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
xul.dll is a Windows file recorded in the ThreatInfo database. It is associated with Tor Browser. The reported company name is Mozilla Foundation. The current detection status is Trojan.Heur!, based on the latest analysis from 2026-05-24 09:00:22 (3 days ago). ThreatInfo groups this verdict with Trojan reports for broader family-level investigation.
If xul.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.Heur!.
File Details
| Product Name: | Tor Browser |
| Company Name: | Mozilla Foundation |
| MD5: | 40978723f917b0cbb57133b96d84fbe2 |
| Size: | 155 MB |
| First Published: | 2026-05-24 09:00:22 (3 days ago) |
| Latest Published: | 2026-05-24 09:00:22 (3 days ago) |
| Status: | Trojan.Heur! (on last analysis) | |
| Analysis Date: | 2026-05-24 09:00:22 (3 days 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:
| %desktop%\tor browser |
ThreatInfo has observed xul.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 xul.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 Australia 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 xul.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
xul.dll 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.
419def7ed6548bbc403a66549d1b1321
47c1dabdfafaab6717336f6e3bf97843
d540611a7cc9721ed813872ab88f8453
1d074b874b68e06a0cc66e89b300e71f
8eee4dfb02a84a73fc269b89d0e3c152
1b497994f435d7c3e5d5808990870b63
f301dff01120f3ab5e47b6c1a1106a85
4594c38167d742b985b179c5be432596
c001aec2420873c1172852b0cc1ddf66
c4babecf7a049d24317e130388c1c20b
acf0134421da6f594321f2f50fc92783
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.Heur!
This report identifies xul.dll by MD5 40978723f917b0cbb57133b96d84fbe2. 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.