A0138303.exe threat report

MD5 c3b84a2e5e5c319a9f17a4f816da38bc
Latest seen 2025-05-14 23:01:19 (a year ago)
First seen 2017-05-21 09:02:27 (8 years ago)
Size 1 MB
Publisher Baidu, Inc.
Product Baidu PC Faster

GridinSoft Anti-Malware detection

Detected by GridinSoft before you download

The current ThreatInfo record shows this exact file hash detected as PUP.BaiduPCFaster. 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
PUP.BaiduPCFaster
Recommended action
Scan and remove
Last analysis
2025-05-14 23:01:19 (a year ago)
File hash
c3b84a2e5e5c319a9f17a4f816da38bc
Download Anti-Malware

Why it matters

Why GridinSoft flags this file

Detection

GridinSoft identifies the sample as PUP.BaiduPCFaster.

Timeline

First seen 2017-05-21 09:02:27 (8 years ago); latest analysis 2025-05-14 23:01:19 (a year ago).

Publisher context

Company metadata: Baidu, Inc.. Product metadata: Baidu PC Faster.

Digital signature

Signed by Baidu Online Network Technology (Beijing) Co.,Ltd.. The signature is reported as valid, but signed files can still be bundled or abused.

Aliases

This hash has appeared under multiple file names, which can happen with repackaging, bundling, or deliberate renaming.

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.

A0138303.exe 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 PUP.BaiduPCFaster, based on the latest analysis from 2025-05-14 23:01:19 (a year ago).

If A0138303.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 PUP.BaiduPCFaster.

Product Name: Baidu PC Faster
Company Name: Baidu, Inc.
MD5: c3b84a2e5e5c319a9f17a4f816da38bc
Size: 1 MB
First Published: 2017-05-21 09:02:27 (8 years ago)
Latest Published: 2025-05-14 23:01:19 (a year ago)
Status: PUP.BaiduPCFaster (on last analysis)
Analysis Date: 2025-05-14 23:01:19 (a year ago)
A0138303.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.

The signature on A0138303.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.

%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
%profile%\desktop
%temp%\nsl6fb5.tmp
%temp%\nsw98d2.tmp
%sysdrive%\adwcleaner\quarantine\files\efftrnttndhgatxztpaqxdyyeuqynaln\5.1.0.0
%sysdrive%\adwcleaner\quarantine\gxix4a2dre\5.1.0.0

ThreatInfo has observed A0138303.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.

NSISInstall.exe
R2_NSISInstall.exe
A0051780.exe
9CCFEE9CDFE458A3.vir
A0126370.exe
A0129357.exe
A0128330.exe
A0130357.exe
A0135286.exe
A0136305.exe
A0138303.exe

This 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.

18.5%
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The strongest geographic signal for this file is Thailand with 18.5% of observed hits. Geographic distribution can help identify targeted campaigns, regional software bundles, or where a file is most commonly reported.

Windows 7 55.1%
Windows 10 31.6%
Windows 8.1 7.2%
Windows XP 2.4%
Windows 8 2.3%
Windows Vista 0.9%
Windows Embedded 8.1 0.5%

The most common operating system signal for A0138303.exe is Windows 7 with 55.1% 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.

A0138303.exe is identified as pe for 32 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.

Subsystem: Windows GUI
PE Type: pe
OS Bitness: 32
Image Base: 0x00400000
Entry Address: 0x00082d22

PE Sections:

Name Size of data MD5
.text 1137664 630d29600fb90fad601f0e141b4320a2
.rdata 274944 ea76eea4d63cbc1f6d10c3731e2a7cef
.data 20480 88b5e2610f1439c80c34cba43ce7d156
.rsrc 80896 f9696226a4b4e1833267354fa162ee76
.reloc 52736 9448d9bdf8de3103a7b0384999f10fce

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.

More information: