GridinSoft Threat Intelligence

xul.dll threat report

Detected as Trojan.Heur! File reputation report
MD5 f3c6a652839ce7f5d132d418c967391c
Latest seen 2025-07-23 23:01:09 (10 months ago)
First seen 2025-07-23 23:01:09 (10 months ago)
Size 147 MB
Publisher Mozilla Foundation
Product Tor Browser

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
2025-07-23 23:01:09 (10 months ago)
File hash
f3c6a652839ce7f5d132d418c967391c
Download Anti-Malware

Why it matters

Why GridinSoft flags this file

Detection

GridinSoft identifies the sample as Trojan.Heur!, part of the Trojan threat category.

Category context

Malware disguised as legitimate software or delivered through deceptive packaging. Related Trojan reports help compare this file with nearby detections, publishers, and hashes.

Timeline

First seen 2025-07-23 23:01:09 (10 months ago); latest analysis 2025-07-23 23:01:09 (10 months ago).

Publisher context

Company metadata: Mozilla Foundation. Product metadata: Tor Browser.

Observed locations

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

  1. Compare the MD5 above with the file found on the device.
  2. Check whether the file appears in the observed locations or under one of the alternate names.
  3. 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.

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 2025-07-23 23:01:09 (10 months 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!.

Product Name: Tor Browser
Company Name: Mozilla Foundation
MD5: f3c6a652839ce7f5d132d418c967391c
Size: 147 MB
First Published: 2025-07-23 23:01:09 (10 months ago)
Latest Published: 2025-07-23 23:01:09 (10 months ago)
Status: Trojan.Heur! (on last analysis)
Analysis Date: 2025-07-23 23:01:09 (10 months ago)
xul.dll 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.

%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.

Windows 10 100.0%

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.

xul.dll is identified as pe for 64-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.

Format pe
Architecture 64-bit
Subsystem Windows GUI
Entry point 0x000011c0
Image base 0x0000000180000000

PE Sections:

Sections 10
Raw data 154727424

Section layout highlights raw-size concentration, repeated names, packer markers, and hashes that can be compared across related samples.

.text 111112192 bytes · 71.8% of section data
Large raw data
MD5 1fe72d23aeba8ed0a3775326d4d4d909
.rdata 23631872 bytes · 15.3% of section data
Large raw data
MD5 044ddd62067d4c7cb43554911222b008
.buildid 512 bytes · 0.0% of section data
Uncommon name
MD5 fe3468f9a8e1ce16e47ae739dac4cd25
.data 488448 bytes · 0.3% of section data
MD5 f86333a689fa1c34f62c521fd56263a7
.pdata 3009024 bytes · 1.9% of section data
MD5 ca71dbb2aefc6eb209eb312145150746
.rodata 15515648 bytes · 10.0% of section data
Large raw data
MD5 af48ebd48d5e6eb5a87361c5c54a87d3
.tls 1536 bytes · 0.0% of section data
MD5 f3da9888068baf6946dae7c059953ff0
mozbldid 512 bytes · 0.0% of section data
Uncommon name
MD5 96e81a90179854c2349d8ad9bab94dde
.rsrc 6144 bytes · 0.0% of section data
MD5 faa155269a2f8ff96b037c94095349e4
.reloc 961536 bytes · 0.6% of section data
MD5 ab3df56cb95b9dd8d2b7b2e7e9dde4ec

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 f3c6a652839ce7f5d132d418c967391c. 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.

Download GridinSoft Anti-Malware Scan the device and confirm whether this exact hash is present. Check this hash on VirusTotal

Recommended next steps

  • Compare the local file MD5 with f3c6a652839ce7f5d132d418c967391c.
  • Check the file path, publisher, and signature against the details in this report.
  • Run a GridinSoft scan and remove the object if the same hash is found. Use the Trojan category to compare similar reports.