GridinSoft Threat Intelligence
wzupdate.exe threat report
GridinSoft Anti-Malware detection
Detected by GridinSoft before you download
The current ThreatInfo record shows this exact file hash detected as Ransom.Wacatac. 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
- Ransom.Wacatac
- Recommended action
- Scan and remove
- Last analysis
- 2025-02-28 23:04:57 (a year ago)
- File hash
- 645e620da17aa3bb8a685179be4decc9
Why it matters
Why GridinSoft flags this file
GridinSoft identifies the sample as Ransom.Wacatac, part of the Ransom threat category.
Ransomware families and files associated with encryption or extortion workflows. Related Ransom reports help compare this file with nearby detections, publishers, and hashes.
First seen 2025-02-28 23:04:57 (a year ago); latest analysis 2025-02-28 23:04:57 (a year ago).
Product metadata: WeatherZero.
Signed by Sanem Digital Limited. 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 Ransom category for related samples and common context.
File context
wzupdate.exe is a Windows file recorded in the ThreatInfo database. It is associated with WeatherZero. The current detection status is Ransom.Wacatac, based on the latest analysis from 2025-02-28 23:04:57 (a year ago). ThreatInfo groups this verdict with Ransom reports for broader family-level investigation.
If wzupdate.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 Ransom.Wacatac.
File Details
| Product Name: | WeatherZero |
| MD5: | 645e620da17aa3bb8a685179be4decc9 |
| Size: | 10 MB |
| First Published: | 2025-02-28 23:04:57 (a year ago) |
| Latest Published: | 2025-02-28 23:04:57 (a year ago) |
| Status: | Ransom.Wacatac (on last analysis) | |
| Analysis Date: | 2025-02-28 23:04:57 (a year 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: | Sanem Digital Limited |
| Status: | Valid |
The signature on wzupdate.exe 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:
| %programfiles% |
ThreatInfo has observed wzupdate.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 wzupdate.exe 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 Argentina 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 wzupdate.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
wzupdate.exe 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.
37006923ef123327121293a7f1e5f8b7
001880845563a93dfef4625a0b58f1db
c2a2b785cebbc37d5d2e1918b336eb96
d41d8cd98f00b204e9800998ecf8427e
49bd6025b418d65132a5ddb9004054a1
416682ef238eb57b344aeca1a0d1d0cc
b64981d67cdf9fd7456df23185b8a6f2
d41d8cd98f00b204e9800998ecf8427e
a633f729c37529f681d4024f5486de3a
0e4fc8b52487604ee02f1a1833eea43f
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 Ransom.Wacatac
This report identifies wzupdate.exe by MD5 645e620da17aa3bb8a685179be4decc9. It is part of the Ransom 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.