GridinSoft Threat Intelligence
B1Shellext64.dll_IObitDel.tmp0 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
- 2024-03-15 23:18:31 (2 years ago)
- File hash
- 2ac4d61073efd708ffcf62f57c6ffe45
Why it matters
Why GridinSoft flags this file
GridinSoft identifies the sample as Adware.Downloader.
First seen 2017-05-21 08:10:08 (8 years ago); latest analysis 2024-03-15 23:18:31 (2 years ago).
Company metadata: b1.org. Product metadata: 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.
File context
B1Shellext64.dll_IObitDel.tmp0 is a Windows file recorded in the ThreatInfo database. It is associated with B1 Free Archiver. The reported company name is b1.org. The current detection status is Adware.Downloader, based on the latest analysis from 2024-03-15 23:18:31 (2 years ago).
If B1Shellext64.dll_IObitDel.tmp0 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: | B1 Free Archiver |
| Company Name: | b1.org |
| MD5: | 2ac4d61073efd708ffcf62f57c6ffe45 |
| Size: | 818 KB |
| First Published: | 2017-05-21 08:10:08 (8 years ago) |
| Latest Published: | 2024-03-15 23:18:31 (2 years ago) |
| Status: | Adware.Downloader (on last analysis) | |
| Analysis Date: | 2024-03-15 23:18:31 (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 B1Shellext64.dll_IObitDel.tmp0 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 |
| %sysdrive%\adwcleaner\quarantine\rqf69azbla |
| %sysdrive%\adwcleaner\quarantine\files |
| %programfiles% |
| %sysdrive%\programas\b1 |
| %sysdrive%\adwcleaner\quarantine |
| %localappdata% |
| %profile%\downloads |
| %sysdrive%\new folder |
| %sysdrive%\b1 free archiver |
ThreatInfo has observed B1Shellext64.dll_IObitDel.tmp0 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:
4 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 B1Shellext64.dll_IObitDel.tmp0 across 49 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 16.1% 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 B1Shellext64.dll_IObitDel.tmp0 is Windows 10 with 55.6% 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
B1Shellext64.dll_IObitDel.tmp0 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.
14730025f0acb85d17411295b69bdf67
364742fb4327a03368a20c3b044c22a5
d5b0c4f317d31588ca72633f1e8b1926
df325a49b2c04fa8382b96703b29e449
5d6eb4480b0071b1255ea785654a4a2d
b9176384589458990030bcbecb26a9d6
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 B1Shellext64.dll_IObitDel.tmp0 by MD5 2ac4d61073efd708ffcf62f57c6ffe45. If the same file is present on your device, scan the system and remove the detected object after confirming the hash and location.