GridinSoft Threat Intelligence
B1 Free Archiver.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
- 2024-08-13 23:09:19 (2 years ago)
- File hash
- 1fd1bd9a0a2801f0ca0eeb3b5e729dfe
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 2017-05-25 05:03:19 (9 years ago); latest analysis 2024-08-13 23:09:19 (2 years ago).
Company metadata: http://b1.org/. Product metadata: Installer B1 Free Archiver.
Signed by Catalina Group Limited. 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
- 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
B1 Free Archiver.exe is a Windows file recorded in the ThreatInfo database. It is associated with Installer B1 Free Archiver. The reported company name is http://b1.org/. The current detection status is Adware.Downloader, based on the latest analysis from 2024-08-13 23:09:19 (2 years ago). ThreatInfo groups this verdict with Adware reports for broader family-level investigation.
If B1 Free Archiver.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: | Installer B1 Free Archiver |
| Company Name: | http://b1.org/ |
| MD5: | 1fd1bd9a0a2801f0ca0eeb3b5e729dfe |
| Size: | 656 KB |
| First Published: | 2017-05-25 05:03:19 (9 years ago) |
| Latest Published: | 2024-08-13 23:09:19 (2 years ago) |
| Status: | Adware.Downloader (on last analysis) | |
| Analysis Date: | 2024-08-13 23:09:19 (2 years 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.
Overview
| Signed By: | Catalina Group Limited |
| Status: | Valid |
The signature on B1 Free Archiver.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.
Common Places:
| %programfiles%\b1 free archiver |
| %profile%\downloads |
| %mydoc%\programs |
| %sysdrive%\adwcleaner\quarantine\rqf69azbla |
| %profile%\google drive\programs |
| %profile%\downloads\programs |
| %profile%\downloads\programas windows\zip |
| %localappdata%\b1 free archiver |
| %programfiles% |
| %sysdrive%\programas\b1 |
ThreatInfo has observed B1 Free Archiver.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.
File Names:
12 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 B1 Free Archiver.exe across 40 countries. Use this signal to compare local evidence with where the sample is most often reported.
The strongest geographic signal for this file is Brazil with 19.9% 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 B1 Free Archiver.exe is Windows 10 with 55.0% 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
B1 Free Archiver.exe 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.
d8679c5dab3a060f07ac355d1ed2e188
c4305d594d30d44a467a282bd9704f83
6de1ffc4279623a484cc4f3f25c534b4
dbd353a3e66fd193457a3a06c9391179
bfb9722bd835c39002ad3eab3f0fae2e
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 B1 Free Archiver.exe by MD5 1fd1bd9a0a2801f0ca0eeb3b5e729dfe. 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.