GridinSoft Threat Intelligence
bulkfilechanger.exe threat report
GridinSoft Anti-Malware detection
Detected by GridinSoft before you download
The current ThreatInfo record shows this exact file hash detected as Adware.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
- Adware.Downloader
- Recommended action
- Scan and remove
- Last analysis
- 2026-03-29 23:01:02 (2 months ago)
- File hash
- 2dfa351e02f71650ce635970c995cc59
Why it matters
Why GridinSoft flags this file
GridinSoft identifies the sample as Adware.Downloader, part of the Adware threat category.
Programs that inject advertising, change browser behavior, or monetize traffic through bundled components. Related Adware reports help compare this file with nearby detections, publishers, and hashes.
First seen 2026-03-29 23:01:02 (2 months ago); latest analysis 2026-03-29 23:01:02 (2 months ago).
Company metadata: NirSoft. Product metadata: BulkFileChanger.
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 Adware category for related samples and common context.
File context
bulkfilechanger.exe is a Windows file recorded in the ThreatInfo database. It is associated with BulkFileChanger. The reported company name is NirSoft. The current detection status is Adware.Downloader, based on the latest analysis from 2026-03-29 23:01:02 (2 months ago). ThreatInfo groups this verdict with Adware reports for broader family-level investigation.
If bulkfilechanger.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 Adware.Downloader.
File Details
| Product Name: | BulkFileChanger |
| Company Name: | NirSoft |
| MD5: | 2dfa351e02f71650ce635970c995cc59 |
| Size: | 130 KB |
| First Published: | 2026-03-29 23:01:02 (2 months ago) |
| Latest Published: | 2026-03-29 23:01:02 (2 months ago) |
| Status: | Adware.Downloader (on last analysis) | |
| Analysis Date: | 2026-03-29 23:01:02 (2 months 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.
Common Places:
| %profile%\downloads\nirsoft_package_enc_1.30.22\nirsoft |
ThreatInfo has observed bulkfilechanger.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 bulkfilechanger.exe across 1 countries. Use this signal to compare local evidence with where the sample is most often reported.
The strongest geographic signal for this file is United States with 100.0% 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 bulkfilechanger.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
bulkfilechanger.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.
PE Sections:
Section layout highlights raw-size concentration, repeated names, packer markers, and hashes that can be compared across related samples.
aad77288a02f23cb103b0edb2a9ee5b0
2d730313f6f15624d49cce81f4a0ffbc
b590f07571a5ae82b44087af8951fb9a
5c0ad90e2acb03f9247092bf5c2cfd7e
b7e114c2ced71fda5f1e0ae71bd2131a
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 Adware.Downloader
This report identifies bulkfilechanger.exe by MD5 2dfa351e02f71650ce635970c995cc59. It is part of the Adware 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.