GridinSoft Threat Intelligence
promlib.dll file report
Why it matters
Evidence available for this file
No final classification is available yet.
First seen 2018-06-02 12:12:58 (7 years ago); latest analysis 2026-05-09 23:01:15 (2 weeks ago).
Signed by Qihoo 360 Software (Beijing) Company 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
- Use the hash and metadata below to verify the exact file identity.
- Review publisher, signature, paths, and PE details for inconsistencies.
- Run a local scan if the file appears unexpectedly or starts with Windows.
File context
promlib.dll is a Windows file recorded in the ThreatInfo database. It is associated with 应用程序扩展. The reported company name is 360.cn. The current detection status is Undefined, based on the latest analysis from 2026-05-09 23:01:15 (2 weeks ago).
ThreatInfo does not have a final classification for this file yet. Use the technical details below to compare the hash, size, signature, and observed locations with the copy found on your device.
File Details
| Product Name: | 应用程序扩展 |
| Company Name: | 360.cn |
| MD5: | eaab2a0e7c2b9d6fe536d69aba46be67 |
| Size: | 33 KB |
| First Published: | 2018-06-02 12:12:58 (7 years ago) |
| Latest Published: | 2026-05-09 23:01:15 (2 weeks ago) |
| Status: | Undefined (on last analysis) | |
| Analysis Date: | 2026-05-09 23:01:15 (2 weeks ago) |
Overview
| Signed By: | Qihoo 360 Software (Beijing) Company Limited |
| Status: | Valid |
The signature on promlib.dll 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:
| %appdata%\360se6\user data\default\apps |
| %profile%\dministrator\application data\360se6\user data\default\apps |
| %appdata%\360se6\apps\data\common |
| %localappdata%\360chrome\chrome\user data\default\apps |
ThreatInfo has observed promlib.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.
Geographic signal
Observed country distribution
ThreatInfo has seen promlib.dll across 21 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 42.7% 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 promlib.dll is Windows 10 with 69.3% 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
promlib.dll 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.
907327558282d0a705fb3cb4f5df451a
927bbc2d84a8a8ebb1f9bf552e0d86e6
0f80ff137ec6d6d11ca799f9f8c82969
529d5a13c1cdc5c35b32fe3484f625c3
1df78140ea4ad530fcd0a84a54b9b58f
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
This file is still under review
ThreatInfo has not assigned a final verdict yet. Compare the file hash, location, signature, and publisher before trusting the file on a production system.