GridinSoft Threat Intelligence
CalendarServ.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.TopTools. 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.TopTools
- Recommended action
- Scan and remove
- Last analysis
- 2023-11-09 23:17:07 (2 years ago)
- File hash
- 3e3f985a89cdb73e6b894680b01eea79
Why it matters
Why GridinSoft flags this file
GridinSoft identifies the sample as Adware.TopTools.
First seen 2017-08-12 14:02:55 (8 years ago); latest analysis 2023-11-09 23:17:07 (2 years ago).
Product metadata: The Calendar Service.
Signed by ShenZhen Qianhailewang Technology Co,.Ltd. 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.
File context
CalendarServ.exe is a Windows file recorded in the ThreatInfo database. It is associated with The Calendar Service. The current detection status is Adware.TopTools, based on the latest analysis from 2023-11-09 23:17:07 (2 years ago).
If CalendarServ.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.TopTools.
File Details
| Product Name: | The Calendar Service |
| MD5: | 3e3f985a89cdb73e6b894680b01eea79 |
| Size: | 152 KB |
| First Published: | 2017-08-12 14:02:55 (8 years ago) |
| Latest Published: | 2023-11-09 23:17:07 (2 years ago) |
| Status: | Adware.TopTools (on last analysis) | |
| Analysis Date: | 2023-11-09 23:17:07 (2 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: | ShenZhen Qianhailewang Technology Co,.Ltd |
| Status: | Valid |
The signature on CalendarServ.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%\calendartool\2.0.0.1000176 |
| %programfiles%\calendartool |
ThreatInfo has observed CalendarServ.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 CalendarServ.exe across 2 countries. Use this signal to compare local evidence with where the sample is most often reported.
The strongest geographic signal for this file is Egypt with 75.0% 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 CalendarServ.exe is Windows XP with 75.0% 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
CalendarServ.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.
e5ffdd96dd52656e2ae3b995387e66c7
d6f0172a923f1c39a3374cb6d8e4f84a
9f5ab977425101c3338408c5aee22534
bf619eac0cdf3f68d496ea9344137e8b
b87753923d5b86a36aca7fba6678b699
ad5709b564737bc4dae34b9e94508bdb
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.TopTools
This report identifies CalendarServ.exe by MD5 3e3f985a89cdb73e6b894680b01eea79. If the same file is present on your device, scan the system and remove the detected object after confirming the hash and location.