GridinSoft Threat Intelligence

Defraggler64.exe threat report

Detected as Trojan.Downloader File reputation report
MD5 ff542ff928cda6c04aa26369ba31320e
Latest seen 2025-11-06 23:01:19 (6 months ago)
First seen 2024-10-02 23:02:09 (2 years ago)
Size 4 MB
Publisher Piriform Software Ltd
Product Defraggler

GridinSoft Anti-Malware detection

Detected by GridinSoft before you download

The current ThreatInfo record shows this exact file hash detected as Trojan.Downloader. 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.Downloader
Recommended action
Scan and remove
Last analysis
2025-11-06 23:01:19 (6 months ago)
File hash
ff542ff928cda6c04aa26369ba31320e
Download Anti-Malware

Why it matters

Why GridinSoft flags this file

Detection

GridinSoft identifies the sample as Trojan.Downloader.

Timeline

First seen 2024-10-02 23:02:09 (2 years ago); latest analysis 2025-11-06 23:01:19 (6 months ago).

Publisher context

Company metadata: Piriform Software Ltd. Product metadata: Defraggler.

Observed locations

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

  1. Compare the MD5 above with the file found on the device.
  2. Check whether the file appears in the observed locations or under one of the alternate names.
  3. Run GridinSoft Anti-Malware to confirm the detection and remove the file if it is present.

File context

Defraggler64.exe is a Windows file recorded in the ThreatInfo database. It is associated with Defraggler. The reported company name is Piriform Software Ltd. The current detection status is Trojan.Downloader, based on the latest analysis from 2025-11-06 23:01:19 (6 months ago).

If Defraggler64.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.Downloader.

File Details

Product Name: Defraggler
Company Name: Piriform Software Ltd
MD5: ff542ff928cda6c04aa26369ba31320e
Size: 4 MB
First Published: 2024-10-02 23:02:09 (2 years ago)
Latest Published: 2025-11-06 23:01:19 (6 months ago)
Status: Trojan.Downloader (on last analysis)
Analysis Date: 2025-11-06 23:01:19 (6 months ago)

Detection screenshot

Defraggler64.exe 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.

Common Places:

%profile%\downloads\ccleaner professional\ccleaner_professional_plus_v5.84.0.1_portable.rar\ccleaner professional plus v5.84.0.1 portable\app
%programfiles%

ThreatInfo has observed Defraggler64.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 Defraggler64.exe across 3 countries. Use this signal to compare local evidence with where the sample is most often reported.

Top country Morocco
Share 40.0%
Low High activity

The strongest geographic signal for this file is Morocco with 40.0% of observed hits. Geographic distribution can help identify targeted campaigns, regional software bundles, or where a file is most commonly reported.

OS Version:

Windows 10 100.0%

The most common operating system signal for Defraggler64.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

Defraggler64.exe is identified as pe for 64-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.

Format pe
Architecture 64-bit
Subsystem Windows GUI
Entry point 0x001b5630
Image base 0x0000000140000000

PE Sections:

Sections 9
Raw data 5091840

Section layout highlights raw-size concentration, repeated names, packer markers, and hashes that can be compared across related samples.

.text 3159040 bytes · 62.0% of section data
MD5 c90083846bd5222e63eda583cf5afc38
.rdata 1103872 bytes · 21.7% of section data
MD5 8dc403b43ddd82d71af532805f2727df
.data 214016 bytes · 4.2% of section data
MD5 daebe370a70320ef59f5bd6a3bb6f4d2
.pdata 145920 bytes · 2.9% of section data
MD5 83314e047cad2e8f67ae2397efedab9a
.tls 512 bytes · 0.0% of section data
MD5 bf619eac0cdf3f68d496ea9344137e8b
text 6144 bytes · 0.1% of section data
MD5 7398b14b6784b771ae3cb4e876d5e45d
data 16896 bytes · 0.3% of section data
MD5 d0908aab8a4dff606b7d306e61617a0a
.rsrc 407040 bytes · 8.0% of section data
MD5 e1141d48365a5cb59e1afcd8609ad64b
.reloc 38400 bytes · 0.8% of section data
MD5 bbf5aac9c36a6715f911dca7f156d8e9

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.Downloader

This report identifies Defraggler64.exe by MD5 ff542ff928cda6c04aa26369ba31320e. If the same file is present on your device, scan the system and remove the detected object after confirming the hash and location.

Download GridinSoft Anti-Malware Scan the device and confirm whether this exact hash is present. Check this hash on VirusTotal

Recommended next steps

  • Compare the local file MD5 with ff542ff928cda6c04aa26369ba31320e.
  • Check the file path, publisher, and signature against the details in this report.
  • Run a GridinSoft scan and remove the object if the same hash is found.