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Verdict Suspicious

Analyzed , 1 month ago

Is Bitcrusher.dll safe? Treat it as suspicious.

One less reliable engine flags the file while 74 others remain silent.

Why Suspicious? One antivirus engine (Cynet) flags it; nothing else confirms it.

Limited evidence · One sign points to a problem; nothing else confirms it.

Don't use it until you know where it came from

Treat the DLL as untrusted; isolate or replace it until its origin and purpose can be verified.

What to do now4 steps

Some signs point to a problem, but nothing confirms it is harmful. Treat it with caution.

What to do

  1. Don't use it unless you're sure where it came from.

  2. Check where you got it: an unexpected attachment, a link someone sent you or a re-upload is a red flag.

  3. If you can't confirm where it came from, delete it. If you need the program, download it again from the publisher's own website.

If you already used it

  1. Stop using it, run a full scan with your antivirus and watch for unexpected behavior or security alerts.

Not sure what to do?

Ask the MalwareTips community before you run it. If you already ran it, follow the cleanup guide.

Paste this report's link in your topic so helpers can see what was found.

Why we think so

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Bitcrusher.dll: Suspicious — MalwareTips file scan

The link always shows the latest result for this exact file (its SHA-256 fingerprint).

Reads the latest antivirus results for this file's hash. Nothing is uploaded.

Antivirus results

1 of 69 flagged

  • Flagged 1
  • No detection 68
  • No result 6
FileBitcrusher.dll315.4 kBSHA-256 8e294447f053…865614
  • Code signing Unsigned
  • Test run Completed
  • First seen 17y ago
1 of the 69 antivirus engines that checked it flags it (Cynet).

Chapter 02

Why we think so

2 points against it and 3 in its favour, checked against the scan evidence.

MT AI Engine · Verdict analysis

The reasoning behind this verdict

Analyst conclusion

The single less reliable detection and absence of major consensus normally point toward a false positive, but the observed technique in sandbox behaviour introduces a genuine risk signal. Lack of code signing and no established signer history prevent a clean classification. Long-term prevalence without widespread detections argues against active malware distribution. The combination of static, behavioural, and historical evidence leaves the sample in mixed-signals territory.

Where this verdict could be wrong1 caveat
  • File was first seen on Sep 13, 2009 with widely seen and long established prevalence; a genuine malicious DLL would typically show higher detection counts or major consensus after such long exposure.

These are the assessment's weak points. If you believe one applies to your file, report the verdict and we'll re-review it.

6 sources checked · 5 complete · 1 not needed or not applicable. See every source

Chapter 03

What it did in our test

It ran in our isolated test environment; no test environment rated what it did as risky.

Test run summary

Capture complete
  • 8sandbox rule tags
  • 1spawned processes
  • 0network contacts
  • 40filesystem & mutex artifacts

What the test run showed

What the file did on a test computer

Confirmed in the test run

  • Moderate concern: Checked whether it was running on a test computer.

  • Note: Read basic details of the test computer, such as its Windows version.

  • Note: Loaded extra code modules while running.

  • Note: Checked which security software was installed on the test computer.

Sandbox labels we could not confirm (common in safe files too)

  • Not confirmed: A sandbox rule tagged this run as code injection, but no injected program was recorded.

  • Not confirmed: A sandbox rule tagged this run as recording keystrokes; no keylogging was confirmed.

This file was run on a test computer (a sandbox), not on yours. Labels we could not confirm are listed so you can see them, but they are not treated as evidence against the file.

Recorded behavior

What happened in the test

Grouped by step. The order is not a timeline.

Seen in the test runWorked out from other results

  1. Input file

    The submitted object

    1
    1. Evidence 1 of 4: FileSeen in the test run

      Bitcrusher.dll

      8e294447f053ed743106d52bdbb47ae28d64e5e28692e7a9b37ebcc06b865614

      Uploaded file

  2. Processes

    What ran

    1
    1. Evidence 2 of 4: ProcessSeen in the test run

      rundll32.exe

      "C:\Windows\System32\rundll32.exe" "C:\Users\<USER>\Desktop\attachment.dll",#1

      Test run

  3. Files

    Created or changed

    2
    1. Evidence 3 of 4: Written fileSeen in the test run

      Temp

      C:\ProgramData\Microsoft\Windows\WER\Temp

      Test run
    2. Evidence 4 of 4: Written fileSeen in the test run

      05d7d698-21d6-4931-89d5-77119cf8863d

      C:\ProgramData\Microsoft\Windows\WER\Temp\05d7d698-21d6-4931-89d5-77119cf8863d

      Test run
    3. +1 more recorded observation

4 facts from the test run. See the full activity list.

Chapter 04

Technical details

1 of the 69 antivirus engines that checked it flags it; no publisher signature.

Sources checked

Every check behind this verdict

6 sources checked · 5 complete · 1 not needed or not applicable. Complete means the check returned a usable result; it does not mean the file is safe.

SourceStatusResultChecked
Antivirus enginesVirusTotal · 75 enginesCompleteWorth noting: 1 of 69 engines flagged it · 6 gave no result Details for antivirus engines
Sandbox runVirusTotal sandboxesCompleteRuntime behaviour was recorded Details for sandbox run
Contacted hostsMalwareTips URL scannerNot neededThe sandbox recorded no contacted hosts to checkNo date recorded
Signature rulesYARAify community rules + MalwareTips rulesComplete1 MalwareTips behaviour rule Details for signature rules
Malware sample databaseabuse.ch MalwareBazaarCompleteNot listed
Known-software referenceCIRCL hashlookupCompleteNo match

Engines that flagged it 1

  • CynetMalicious (score: 100)

File fingerprint

Last analyzed
Sep 6, 2026, 7:29 PM UTC
SHA-256
8e294447f053ed743106d52bdbb47ae28d64e5e28692e7a9b37ebcc06b865614
SHA-1
09c4abd2951eb47100c439f862a0969012d8abf9
MD5
f71a943587fcc1936b487f479e4eab74

About this file

Bitcrusher.dll is a Win32 DLL file of 315.4 kB.

Type and size
Win32 DLL · 315.4 kB
Signer
UnsignedNo code signature.
First seen
Sep 13, 2009On VirusTotal.
Submitted by
117 distinct sources
Packer
None detected
Entropy
6.30 of 8

First scanned

Chapter 05

Questions & answers

Short answers to the 6 questions people ask most about this file.

Is Bitcrusher.dll safe, or is it malware?
Bitcrusher.dll is rated Suspicious: some signs point to a problem, but nothing confirms it is harmful. 1 of the 69 antivirus engines that checked it flags it. Don't use it unless you're sure where it came from. If a program needs this file, reinstall that program from its official website instead of replacing the file on its own.
What is Bitcrusher.dll?
Bitcrusher.dll is a Windows library (DLL), about 315.4 kB. It carries no version information saying what it is or who made it. VirusTotal first saw it on Sep 13, 2009.
How many antivirus engines detected Bitcrusher.dll?
1 of the 69 antivirus engines that checked it flags Bitcrusher.dll (Cynet). We weigh which engines flagged it and what else the scan found, not just the count.
What should I do if I already used Bitcrusher.dll?
No infection is confirmed: the rating is a caution, not a malware finding. 1) Check where it came from. If you can't confirm the source, delete it. 2) Run a full scan with your security software. 3) If the scan finds something, follow its removal steps and change passwords you typed on the device since then.
What is the SHA-256 hash of Bitcrusher.dll?
The SHA-256 fingerprint of Bitcrusher.dll is 8e294447f053ed743106d52bdbb47ae28d64e5e28692e7a9b37ebcc06b865614, and its MD5 is f71a943587fcc1936b487f479e4eab74. Two files with the same SHA-256 are identical, so use it to check you have exactly this file, not just one with the same name.
How up to date is this analysis of Bitcrusher.dll?
This report reflects the scan on Sep 6, 2026. A file's fingerprint never changes, but antivirus engines keep learning, so a rating can change later. To get a newer result, scan the file again: we refresh the antivirus results when the saved ones are out of date.
Chapter 06

Community

Member reviews and reports for this exact file hash.

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Recent reports on other files with the same rating.

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This report and its SHA-256 fingerprint are public, so the next person who checks the same file gets an instant answer; documents and images are listed by type instead of their file name. A file we had not seen before is uploaded to VirusTotal, whose security partners and subscribers can download it; MalwareTips deletes its own copy after the scan. If you ran this file and are worried, scan your device with up-to-date security software.