GridinSoft Threat Intelligence
F1Assistant.dll file report
Why it matters
Evidence available for this file
No final classification is available yet.
First seen 2017-07-22 10:06:14 (8 years ago); latest analysis 2021-10-12 20:31:34 (4 years ago).
Signed by Tencent Technology(Shenzhen) 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
F1Assistant.dll is a Windows file recorded in the ThreatInfo database. It is associated with QQ浏览器. The reported company name is Tencent. The current detection status is Undefined, based on the latest analysis from 2021-10-12 20:31:34 (4 years 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: | QQ浏览器 |
| Company Name: | Tencent |
| MD5: | 939eb9fab2c3cacf17723dbfd4644a87 |
| Size: | 2 MB |
| First Published: | 2017-07-22 10:06:14 (8 years ago) |
| Latest Published: | 2021-10-12 20:31:34 (4 years ago) |
| Status: | Undefined (on last analysis) | |
| Analysis Date: | 2021-10-12 20:31:34 (4 years ago) |
Overview
| Signed By: | Tencent Technology(Shenzhen) Company Limited |
| Status: | Valid |
The signature on F1Assistant.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:
| %localappdata%\tencent\qqbrowser\user data\liveup\temp |
| %localappdata%\tencent\qqbrowser\user data\liveup |
| %programfiles%\tencent |
ThreatInfo has observed F1Assistant.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 F1Assistant.dll across 3 countries. Use this signal to compare local evidence with where the sample is most often reported.
The strongest geographic signal for this file is Vietnam with 55.6% 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 F1Assistant.dll is Windows 7 with 50.0% 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
F1Assistant.dll is identified as pe for 32-bit systems. The subsystem is Windows CUI. 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.
f8fe396c44fed031afc6ad5f9705c764
c176234eaba80b1d876be087dbf865ae
e8338578108e08e3f16df6b200638f58
bf619eac0cdf3f68d496ea9344137e8b
da55554d0f358304af75f0cd4b819799
8725c9f50b1ed9949817379899c46a0d
61391c004f92f2cb71c2cede22754a4e
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.