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Verdict Safe

Analyzed , 1 month ago

Is tbb.dll safe? Yes, no threats found.

This Intel threading library DLL is listed in a known-software reference database, is widely distributed since 2011 and was flagged by none of the 71 antivirus engines that…

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Strong evidence · Widely seen for a long time, and nothing harmful found.

Use it as usual if it came from the official source

This file can be kept as part of the application it shipped with. Keep your antivirus enabled as usual.

Good practice2 tips

We found nothing harmful in this file.

  1. Use it only as part of a program you got from the developer's own website.

  2. Keep your antivirus and Windows updates switched on.

No scanner can promise a file is 100% safe.

Why we think so

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tbb.dll: Safe — 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

0 of 71 flagged

  • Flagged 0
  • No detection 71
  • No result 4
Filetbb.dll142.6 kBSHA-256 2280e7acdef5…e12e32
  • Code signing Signer not verified
  • Test run Completed
  • First seen 15y ago
None of the 71 antivirus engines that checked it flag it.

Chapter 02

Why we think so

1 point against it and 4 in its favour, checked against the scan evidence.

MT AI Engine · Verdict analysis

The reasoning behind this verdict

Analyst conclusion

It appears in a known-software reference database as a component of the game Crusader Kings II, and 366 sources have submitted it since it was first seen on Jun 28, 2011. Its signature claims Intel but failed verification because the certificate was revoked. That weakens proof of origin but is not a sign of malware here.

Where this verdict could be wrong1 caveat
  • The embedded Intel certificate has been revoked, so the signature cannot vouch for the file's origin. However, a known-software reference listing, 14 years of wide distribution and zero detections make tampering unlikely.

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 partial. 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
  • 12sandbox rule tags
  • 1spawned processes
  • 3network contacts
  • 40filesystem & mutex artifacts

Chapter 04

Technical details

None of the 71 antivirus engines that checked it flag it; a signature that did not verify.

Sources checked

Every check behind this verdict

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

SourceStatusResultChecked
Antivirus enginesVirusTotal · 75 enginesCompletePositive signal: 0 of 71 engines flagged it · 4 gave no result Details for antivirus engines
Sandbox runVirusTotal sandboxesCompleteRuntime behaviour was recorded Details for sandbox run
Contacted hostsMalwareTips URL scannerPartial3 hosts contacted in the test run had no completed reputation check Details for contacted hosts
Signature rulesYARAify community rules + MalwareTips rulesComplete1 MalwareTips behaviour rule Details for signature rules
Malware sample databaseabuse.ch MalwareBazaarCompleteNot listed
Known-software referenceCIRCL hashlookupCompletePositive signal: Known software (Crusader Kings II)

File fingerprint

Last analyzed
Sep 6, 2026, 9:11 AM UTC
SHA-256
2280e7acdef5e2ccf20454f11756a44e2cb3e2afd05d6d2d0ef5836c04e12e32
SHA-1
c36b39bafefa17a07d95ef7ca08bc6e1ef5f9fca
MD5
0140288cc9d146ad73e0b2e37bfb855e

About this file

tbb.dll is a Win32 DLL file of 142.6 kB.

Type and size
Win32 DLL · 142.6 kB
Signer
Intel(R) Software Products (unverified signature)Worth noting: Malware sometimes copies or steals a company's signature, so this does not mean that company made it.
First seen
Jun 28, 2011On VirusTotal.
Submitted by
366 distinct sources
Packer
None detected
Entropy
7.26 of 8

First scanned Updated

Chapter 05

Questions & answers

Short answers to the 7 questions people ask most about this file.

Is tbb.dll safe?
We found nothing harmful in tbb.dll. None of the 71 antivirus engines that checked it flag it. Use it only as part of a program you got from the developer's own website.
What is tbb.dll?
tbb.dll is a Windows library (DLL), about 142.6 kB. It carries no version information saying what it is or who made it. VirusTotal first saw it on Jun 28, 2011.
How many antivirus engines detected tbb.dll?
None of the 71 antivirus engines that checked it flag tbb.dll. That is a good sign, but not proof, so we also weigh who made it, how widely it is used and what it did in a test run.
Is tbb.dll digitally signed?
It carries a signature in the name of Intel(R) Software Products that could not be verified. Malware sometimes copies or steals a company's signature, so this does not mean that company made it.
What is the SHA-256 hash of tbb.dll?
The SHA-256 fingerprint of tbb.dll is 2280e7acdef5e2ccf20454f11756a44e2cb3e2afd05d6d2d0ef5836c04e12e32, and its MD5 is 0140288cc9d146ad73e0b2e37bfb855e. 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.
Is it safe to use tbb.dll?
We found nothing harmful in tbb.dll. The main caveat is where you got it: attackers sometimes spread malware under the name of real software, so get it from the official website. If your own antivirus warns about it, check the source before you ignore the warning.
How up to date is this analysis of tbb.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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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.