GridinSoft Threat Intelligence
maintenanceservice_installer.exe threat report
GridinSoft Anti-Malware detection
Detected by GridinSoft before you download
The current ThreatInfo record shows this exact file hash detected as Trojan.Agent. 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
- Trojan.Agent
- Recommended action
- Scan and remove
- Last analysis
- 2021-08-26 20:56:18 (4 years ago)
- File hash
- 9fc563737d498dc2e84ac94b4365ddac
Why it matters
Why GridinSoft flags this file
GridinSoft identifies the sample as Trojan.Agent, part of the Trojan threat category.
Malware disguised as legitimate software or delivered through deceptive packaging. Related Trojan reports help compare this file with nearby detections, publishers, and hashes.
First seen 2019-12-07 14:33:39 (6 years ago); latest analysis 2021-08-26 20:56:18 (4 years ago).
Company metadata: Mozilla Corporation. Product metadata: Firefox.
Signed by Mozilla Corporation. 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 Trojan category for related samples and common context.
File context
maintenanceservice_installer.exe is a Windows file recorded in the ThreatInfo database. It is associated with Firefox. The reported company name is Mozilla Corporation. The current detection status is Trojan.Agent, based on the latest analysis from 2021-08-26 20:56:18 (4 years ago). ThreatInfo groups this verdict with Trojan reports for broader family-level investigation.
If maintenanceservice_installer.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 Trojan.Agent.
File Details
| Product Name: | Firefox |
| Company Name: | Mozilla Corporation |
| MD5: | 9fc563737d498dc2e84ac94b4365ddac |
| Size: | 158 KB |
| First Published: | 2019-12-07 14:33:39 (6 years ago) |
| Latest Published: | 2021-08-26 20:56:18 (4 years ago) |
| Status: | Trojan.Agent (on last analysis) | |
| Analysis Date: | 2021-08-26 20:56:18 (4 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: | Mozilla Corporation |
| Status: | Valid |
The signature on maintenanceservice_installer.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%\firefox\app |
| %appdata%\windows nt x64\ffc\app |
ThreatInfo has observed maintenanceservice_installer.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 maintenanceservice_installer.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 Russian Federation with 50.0% 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 maintenanceservice_installer.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
maintenanceservice_installer.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.
31e134efb06a971d28d0c7a65b39fec9
d6b0bc2db2de2a3dd996fda6539cef0e
f6505276c92679f9ed837be4a8c6736c
00000000000000000000000000000000
13d73da1a11d2209865c515d7710003c
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 Trojan.Agent
This report identifies maintenanceservice_installer.exe by MD5 9fc563737d498dc2e84ac94b4365ddac. It is part of the Trojan 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.