GridinSoft Threat Intelligence
update.exe threat report
GridinSoft Anti-Malware detection
Detected by GridinSoft before you download
The current ThreatInfo record shows this exact file hash detected as PUP.Presenoker. 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
- PUP.Presenoker
- Recommended action
- Scan and remove
- Last analysis
- 2025-06-27 23:00:58 (11 months ago)
- File hash
- b241a6f383f6a6d0f5b30c1cc1233e1b
Why it matters
Why GridinSoft flags this file
GridinSoft identifies the sample as PUP.Presenoker.
First seen 2025-06-27 23:00:58 (11 months ago); latest analysis 2025-06-27 23:00:58 (11 months ago).
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.
File context
update.exe is a Windows file recorded in the ThreatInfo database. It is associated with prjUpdate. The reported company name is 书之城. The current detection status is PUP.Presenoker, based on the latest analysis from 2025-06-27 23:00:58 (11 months ago).
If update.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 PUP.Presenoker.
File Details
| Product Name: | prjUpdate |
| Company Name: | 书之城 |
| MD5: | b241a6f383f6a6d0f5b30c1cc1233e1b |
| Size: | 76 KB |
| First Published: | 2025-06-27 23:00:58 (11 months ago) |
| Latest Published: | 2025-06-27 23:00:58 (11 months ago) |
| Status: | PUP.Presenoker (on last analysis) | |
| Analysis Date: | 2025-06-27 23:00:58 (11 months 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:
| %sysdrive% |
ThreatInfo has observed update.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 update.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 China 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 update.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
update.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.
3741f50467d563f80c67c2578db8672d
620f0b67a91f7f74151bc5be745b7110
4079c3e7a8721918b1386d7e9744a58a
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 PUP.Presenoker
This report identifies update.exe by MD5 b241a6f383f6a6d0f5b30c1cc1233e1b. If the same file is present on your device, scan the system and remove the detected object after confirming the hash and location.