GridinSoft Threat Intelligence
shimx64.efi.dualsigned 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
- 2026-05-21 11:00:50 (a week ago)
- File hash
- 6ae9d43ba480748a3b86ec087a9b3b52
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 2026-05-21 11:00:50 (a week ago); latest analysis 2026-05-21 11:00:50 (a week ago).
Signed by Canonical Ltd. Secure Boot Signing (2022 v1). 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 Trojan category for related samples and common context.
File context
shimx64.efi.dualsigned is a Windows file recorded in the ThreatInfo database. The current detection status is Trojan.ExtHeur!, based on the latest analysis from 2026-05-21 11:00:50 (a week ago). ThreatInfo groups this verdict with Trojan reports for broader family-level investigation.
If shimx64.efi.dualsigned 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
| MD5: | 6ae9d43ba480748a3b86ec087a9b3b52 |
| Size: | 945 KB |
| First Published: | 2026-05-21 11:00:50 (a week ago) |
| Latest Published: | 2026-05-21 11:00:50 (a week ago) |
| Status: | Trojan.ExtHeur! (on last analysis) | |
| Analysis Date: | 2026-05-21 11:00:50 (a week 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: | Canonical Ltd. Secure Boot Signing (2022 v1) |
| Status: | Valid |
The signature on shimx64.efi.dualsigned 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:
| %mydoc%\cvv2.com\dumps\vultr\ roamlyusa.com.tar\ roamlyusa.com\usr\lib |
ThreatInfo has observed shimx64.efi.dualsigned 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 shimx64.efi.dualsigned 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 Ukraine 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 shimx64.efi.dualsigned 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
shimx64.efi.dualsigned is identified as pe for 64-bit systems. 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.
bcddf6e10bc11eb8dcff55ec99b9d314
8e7dbf9ab8a1b4e343f2382e36fa3112
0c45f6d812d079821c1d54c09ab89e1d
2bcdc2ed3c80c91e1b51ae5626936a0a
8cac229fb51c28086fa5221ecf848c12
d25e2aeec6f545f93c2501545eada74e
4605b18e88d53e75cc145675e754456b
4ffe0d3e1ee30a695216a449b2932ddc
39247a02c5aa56cc5385920d0e62473b
ce542aec636874a6a26fbc687d00147d
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 shimx64.efi.dualsigned by MD5 6ae9d43ba480748a3b86ec087a9b3b52. 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.