GridinSoft Threat Intelligence
mostool.exe threat report
GridinSoft Anti-Malware detection
Detected by GridinSoft before you download
The current ThreatInfo record shows this exact file hash detected as Adware.Gen. 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
- Adware.Gen
- Recommended action
- Scan and remove
- Last analysis
- 2021-01-02 00:11:22 (5 years ago)
- File hash
- be8431c506ea8baf2641b671e73b8c59
Why it matters
Why GridinSoft flags this file
GridinSoft identifies the sample as Adware.Gen, part of the Adware threat category.
Programs that inject advertising, change browser behavior, or monetize traffic through bundled components. Related Adware reports help compare this file with nearby detections, publishers, and hashes.
First seen 2021-01-02 00:11:22 (5 years ago); latest analysis 2021-01-02 00:11:22 (5 years ago).
Signed by YY Inc.. 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 Adware category for related samples and common context.
File context
mostool.exe is a Windows file recorded in the ThreatInfo database. It is associated with MosTool. The reported company name is YY Inc.. The current detection status is Adware.Gen, based on the latest analysis from 2021-01-02 00:11:22 (5 years ago). ThreatInfo groups this verdict with Adware reports for broader family-level investigation.
If mostool.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 Adware.Gen.
File Details
| Product Name: | MosTool |
| Company Name: | YY Inc. |
| MD5: | be8431c506ea8baf2641b671e73b8c59 |
| Size: | 2 MB |
| First Published: | 2021-01-02 00:11:22 (5 years ago) |
| Latest Published: | 2021-01-02 00:11:22 (5 years ago) |
| Status: | Adware.Gen (on last analysis) | |
| Analysis Date: | 2021-01-02 00:11:22 (5 years 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: | YY Inc. |
| Status: | Valid |
The signature on mostool.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:
| %appdata%\duowan\yy\yycomstore\2052\com.yy.mostoolteamfighttactics\65542\mostoolteamfighttactics |
ThreatInfo has observed mostool.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 mostool.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 Portugal 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 mostool.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
mostool.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.
4fcd0d6a1a94521fbca1396e0c90d958
2988b5a3a25a54693337dbaea1cf8970
449c775fc9be3c016da2c9da1296def1
1f354d76203061bfdd5a53dae48d5435
196a02551c2f1f09c2c09309da10e0e4
82f2a775484e96195fc6207f1ea873fe
0dbfa0ea33b07f8c01a174779347e1d5
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 Adware.Gen
This report identifies mostool.exe by MD5 be8431c506ea8baf2641b671e73b8c59. It is part of the Adware 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.