GridinSoft Threat Intelligence
update_task.exe.del threat report
GridinSoft Anti-Malware detection
Detected by GridinSoft before you download
The current ThreatInfo record shows this exact file hash detected as Adware.Eszjuxuan. 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.Eszjuxuan
- Recommended action
- Scan and remove
- Last analysis
- 2025-03-16 23:03:42 (a year ago)
- File hash
- bbe8990f79cfe8633e82acc1c6c8aa0d
Why it matters
Why GridinSoft flags this file
GridinSoft identifies the sample as Adware.Eszjuxuan.
First seen 2017-05-21 03:02:01 (8 years ago); latest analysis 2025-03-16 23:03:42 (a year ago).
Signed by TAOBAO (CHINA) SOFTWARE CO.,LTD.. The signature is reported as valid, but signed files can still be bundled or abused.
This hash has appeared under multiple file names, which can happen with repackaging, bundling, or deliberate renaming.
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_task.exe.del is a Windows file recorded in the ThreatInfo database. It is associated with UC浏览器升级任务. The reported company name is UCWeb Inc. The current detection status is Adware.Eszjuxuan, based on the latest analysis from 2025-03-16 23:03:42 (a year ago).
If update_task.exe.del 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.Eszjuxuan.
File Details
| Product Name: | UC浏览器升级任务 |
| Company Name: | UCWeb Inc |
| MD5: | bbe8990f79cfe8633e82acc1c6c8aa0d |
| Size: | 473 KB |
| First Published: | 2017-05-21 03:02:01 (8 years ago) |
| Latest Published: | 2025-03-16 23:03:42 (a year ago) |
| Status: | Adware.Eszjuxuan (on last analysis) | |
| Analysis Date: | 2025-03-16 23:03:42 (a year 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: | TAOBAO (CHINA) SOFTWARE CO.,LTD. |
| Status: | Valid |
The signature on update_task.exe.del 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%\ucchannel\package\chrome-bin |
| %programfiles%\ucbrowser\application |
| %profile%\dministrator\application data\ucchannel\package\chrome-bin |
| %programfiles%\ucbrowser\temp\source9764_30066\chrome-bin |
| %programfiles%\ucbrowser\application\new |
| %programfiles%\ucbrowser\temp\source5364_189\chrome-bin |
| %programfiles%\ucbrowser\temp\source3924_17984\chrome-bin |
| %programfiles%\ucbrowser\temp\source2144_15877\chrome-bin |
| %programfiles%\ucbrowser\temp\source7152_3682\chrome-bin |
| %programfiles%\ucbrowser\temp\source5368_29375\chrome-bin |
ThreatInfo has observed update_task.exe.del 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.
File Names:
3 observed namesThis hash has been seen with multiple file names. Alternate names can appear when software is updated, copied between folders, packed by an installer, or deliberately renamed to avoid recognition. Compare the exact MD5 above before assuming two names refer to the same file.
Geographic signal
Observed country distribution
ThreatInfo has seen update_task.exe.del across 57 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 23.1% 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_task.exe.del is Windows 7 with 52.3% 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
update_task.exe.del 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.
24d3c2be9df2c2d412f7e0620d06015a
89e544b84d2319545748b8f2023d5dc1
7ad0812b95a7b92336d24db616b033b7
1d9f75909c7391d3daf0de0803b509f7
bf619eac0cdf3f68d496ea9344137e8b
9550772c9a4f33440ad0b1ea1896f0cf
9897420905c145e34f3715fc9733f7df
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.Eszjuxuan
This report identifies update_task.exe.del by MD5 bbe8990f79cfe8633e82acc1c6c8aa0d. If the same file is present on your device, scan the system and remove the detected object after confirming the hash and location.