GridinSoft Threat Intelligence
51fpzs_kprj.exe threat report
GridinSoft Anti-Malware detection
Detected by GridinSoft before you download
The current ThreatInfo record shows this exact file hash detected as Trojan.Downloader. 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.Downloader
- Recommended action
- Scan and remove
- Last analysis
- 2026-05-16 09:00:57 (2 weeks ago)
- File hash
- c770b91be035e6da821a42eea4d8a371
Why it matters
Why GridinSoft flags this file
GridinSoft identifies the sample as Trojan.Downloader, 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 2026-05-16 09:00:57 (2 weeks ago); latest analysis 2026-05-16 09:00:57 (2 weeks ago).
Signed by 航天信息股份有限公司. 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
51fpzs_kprj.exe is a Windows file recorded in the ThreatInfo database. The current detection status is Trojan.Downloader, based on the latest analysis from 2026-05-16 09:00:57 (2 weeks ago). ThreatInfo groups this verdict with Trojan reports for broader family-level investigation.
If 51fpzs_kprj.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 Trojan.Downloader.
File Details
| MD5: | c770b91be035e6da821a42eea4d8a371 |
| Size: | 28 MB |
| First Published: | 2026-05-16 09:00:57 (2 weeks ago) |
| Latest Published: | 2026-05-16 09:00:57 (2 weeks ago) |
| Status: | Trojan.Downloader (on last analysis) | |
| Analysis Date: | 2026-05-16 09:00:57 (2 weeks 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: | 航天信息股份有限公司 |
| Status: | Valid |
The signature on 51fpzs_kprj.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%\aisino\开票软件220624\bin |
ThreatInfo has observed 51fpzs_kprj.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 51fpzs_kprj.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 51fpzs_kprj.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
51fpzs_kprj.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.
a04138503cbcc902263bedc7fedd6947
4856bbf2a79b612f639ebd55d68c4d02
06c5105864978df88e34770eefada5da
d41d8cd98f00b204e9800998ecf8427e
e3aecb7d49fa2ce908f83b4120c0b37d
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.Downloader
This report identifies 51fpzs_kprj.exe by MD5 c770b91be035e6da821a42eea4d8a371. 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.