cuda.exe threat report

MD5 66565a57ca5729c91f0badf22960e929
Latest seen 2025-04-28 23:01:29 (a year ago)
First seen 2024-11-05 23:01:42 (a year ago)
Size 329 KB
Product 鲁大师

GridinSoft Anti-Malware detection

Detected by GridinSoft before you download

The current ThreatInfo record shows this exact file hash detected as PUP.ChinAd. 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.ChinAd
Recommended action
Scan and remove
Last analysis
2025-04-28 23:01:29 (a year ago)
File hash
66565a57ca5729c91f0badf22960e929
Download Anti-Malware

Why it matters

Why GridinSoft flags this file

Detection

GridinSoft identifies the sample as PUP.ChinAd.

Timeline

First seen 2024-11-05 23:01:42 (a year ago); latest analysis 2025-04-28 23:01:29 (a year ago).

Publisher context

Product metadata: 鲁大师.

Digital signature

Signed by 成都奇鲁科技有限公司;Chengdu Qilu Technology Co. Ltd.. The signature is reported as valid, but signed files can still be bundled or abused.

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.

cuda.exe is a Windows file recorded in the ThreatInfo database. It is associated with 鲁大师. The current detection status is PUP.ChinAd, based on the latest analysis from 2025-04-28 23:01:29 (a year ago).

If cuda.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.ChinAd.

Product Name: 鲁大师
MD5: 66565a57ca5729c91f0badf22960e929
Size: 329 KB
First Published: 2024-11-05 23:01:42 (a year ago)
Latest Published: 2025-04-28 23:01:29 (a year ago)
Status: PUP.ChinAd (on last analysis)
Analysis Date: 2025-04-28 23:01:29 (a year ago)
cuda.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 cuda.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%\ludashi
%programfiles%\ludashi

ThreatInfo has observed cuda.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.

50.0%
50.0%

The strongest geographic signal for this file is China with 50.0% of observed hits. Geographic distribution can help identify targeted campaigns, regional software bundles, or where a file is most commonly reported.

Windows 10 100.0%

The most common operating system signal for cuda.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.

cuda.exe is identified as pe for 32 systems. The subsystem is Windows CUI. PE header values are useful for triage, especially when they do not match the expected publisher, product, or release timeline.

Subsystem: Windows CUI
PE Type: pe
OS Bitness: 32
Image Base: 0x00400000
Entry Address: 0x00011681

PE Sections:

Name Size of data MD5
.text 188928 a0e4c6f82cf0b9693b4f755beb936998
.rdata 113664 7762ad51cd8999766c83d75db0619496
.data 4096 08758524fd30d4d3b9b4ddc08bd2e953
.rsrc 1536 656257903078f823fd057f9ad4012afb
.reloc 14336 8ebd4b57737b14f51f95252470a94836

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: