GridinSoft Threat Intelligence
DiskDefrag.exe_old0 file report
Why it matters
Evidence available for this file
No final classification is available yet.
First seen 2017-05-21 09:02:28 (9 years ago); latest analysis 2024-03-18 23:06:49 (2 years ago).
Company metadata: Baidu, Inc.. Product metadata: Baidu PC Faster.
Signed by Baidu Online Network Technology (Beijing) 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
- Use the hash and metadata below to verify the exact file identity.
- Review publisher, signature, paths, and PE details for inconsistencies.
- Run a local scan if the file appears unexpectedly or starts with Windows.
File context
DiskDefrag.exe_old0 is a Windows file recorded in the ThreatInfo database. It is associated with Baidu PC Faster. The reported company name is Baidu, Inc.. The current detection status is Undefined, based on the latest analysis from 2024-03-18 23:06:49 (2 years ago).
ThreatInfo does not have a final classification for this file yet. Use the technical details below to compare the hash, size, signature, and observed locations with the copy found on your device.
File Details
| Product Name: | Baidu PC Faster |
| Company Name: | Baidu, Inc. |
| MD5: | cb030b16f07c05179f345b290025fdae |
| Size: | 892 KB |
| First Published: | 2017-05-21 09:02:28 (9 years ago) |
| Latest Published: | 2024-03-18 23:06:49 (2 years ago) |
| Status: | Undefined (on last analysis) | |
| Analysis Date: | 2024-03-18 23:06:49 (2 years ago) |
Overview
| Signed By: | Baidu Online Network Technology (Beijing) Co.,Ltd. |
| Status: | Valid |
The signature on DiskDefrag.exe_old0 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%\pc faster\5.1.0.0 |
| %programfiles%\pc faster |
| %programfiles%\pc faster\update |
| %sysdrive%\adwcleaner\quarantine\files\yvuopjekvumfqjdeeunvxxcbtddhiccw\5.1.0.0 |
| %sysdrive%\adwcleaner\quarantine\files\guqwqsotgqmwbksiznnxxifxoikfobec\5.1.0.0 |
| %programfiles%\pc faster\5.1.0.0\update |
| %sysdrive%\adwcleaner\quarantine\files\efftrnttndhgatxztpaqxdyyeuqynaln\5.1.0.0 |
| %sysdrive%\adwcleaner\quarantine\files\efftrnttndhgatxztpaqxdyyeuqynaln\5.1.0.0\update\diskdefrag.exe.7z |
| %sysdrive%\adwcleaner\quarantine\files\ezchzjrscjhlilcuzbjzskkqfrpdpqgd\5.1.0.0 |
| %sysdrive%\adwcleaner\quarantine\files\qssgcnpdngccdiiasdlhojmtizjqlkav\5.1.0.0 |
ThreatInfo has observed DiskDefrag.exe_old0 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:
2 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 DiskDefrag.exe_old0 across 51 countries. Use this signal to compare local evidence with where the sample is most often reported.
The strongest geographic signal for this file is Thailand with 25.9% 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 DiskDefrag.exe_old0 is Windows 7 with 59.4% 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
DiskDefrag.exe_old0 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.
7edacbbe29715dd90af4c0ddca84362a
e53c426f8fde666922c8c772b5cc830c
5ec94abad9232d2801eb523a9a956873
d65933bb15477f6fdc31622b2926047c
7cba99f6b4b708a70f2de47f9a4aeba6
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
This file is still under review
ThreatInfo has not assigned a final verdict yet. Compare the file hash, location, signature, and publisher before trusting the file on a production system.