ucrtbased.dll

Microsoft C Runtime Library file version info

Library on Windows 8 known copies with hashes

Is it the real ucrtbased.dll?

file version info and known copies

Original nameucrtbase.dll in the file’s header: a renamed copy still carries it

Installed in

C:\Program Files (x86)\Microsoft SDKs\Windows Kits\10\ExtensionSDKs\Microsoft.UniversalCRT.Debug\10.0.19041.0\Redist\Debug\arm64\

C:\Program Files (x86)\Microsoft SDKs\Windows Kits\10\ExtensionSDKs\Microsoft.UniversalCRT.Debug\10.0.19041.0\Redist\Debug\arm\

C:\Program Files (x86)\Microsoft SDKs\Windows Kits\10\ExtensionSDKs\Microsoft.UniversalCRT.Debug\10.0.19041.0\Redist\Debug\x64\

Signed byMicrosoft Windows Kits Publisher

ProductMicrosoft Windows Operating System, Microsoft Corporation

DescriptionMicrosoft C Runtime Library

8 known copies

10.0.19041.1 (WinBuild.160101.0800) · C:\Program Files (x86)\Microsoft SDKs\Windows Kits\10\ExtensionSDKs\Microsoft.UniversalCRT.Debug\10.0.19041.0\Redist\Debug\arm\ucrtbased.dll · signed by Microsoft Windows Kits Publisher

4542d5754a976eafe881cfc81adc2e4d980952a5236157fc00ba0a1c353ed2bb

10.0.19041.1 (WinBuild.160101.0800) · C:\Program Files (x86)\Microsoft SDKs\Windows Kits\10\ExtensionSDKs\Microsoft.UniversalCRT.Debug\10.0.19041.0\Redist\Debug\x64\ucrtbased.dll · signed by Microsoft Corporation

ae1d7de4facabc88f322b727fa5f2b19524fb7986133cf976463053d56652f07

10.0.19041.1 (WinBuild.160101.0800) · C:\Program Files (x86)\Windows Kits\10\bin\10.0.19041.0\x86\ucrt\ucrtbased.dll · signed by Microsoft Corporation

b5ac46eb947e36aa0e8f1dff3073b1f60f57c5c8d57c7850f09c2cfc30d81b3b

10.0.19041.1 (WinBuild.160101.0800) · C:\Program Files (x86)\Microsoft SDKs\Windows Kits\10\ExtensionSDKs\Microsoft.UniversalCRT.Debug\10.0.19041.0\Redist\Debug\arm64\ucrtbased.dll · signed by Microsoft Windows Kits Publisher

b98b0684c6f8068186f6784c499c0f20bbcaa00b93a60a45758e59a2614ea4cc

10.0.19041.1 (WinBuild.160101.0800) · C:\Program Files (x86)\Windows Kits\10\bin\10.0.19041.0\arm\ucrt\ucrtbased.dll · signed by Microsoft Windows Kits Publisher

cddde5e0130d1d21c104225cbfda2f185207c45d8860c8d892992a30c3a5ee83

10.0.19041.1 (WinBuild.160101.0800) · C:\Program Files (x86)\Microsoft SDKs\Windows Kits\10\ExtensionSDKs\Microsoft.UniversalCRT.Debug\10.0.19041.0\Redist\Debug\x86\ucrtbased.dll · signed by Microsoft Corporation

e1dc65c971670c3297a537075e2158fd4442ea75eb4a077793948e7e924dbbe7

10.0.19041.1 (WinBuild.160101.0800) · C:\Program Files (x86)\Windows Kits\10\bin\10.0.19041.0\arm64\ucrt\ucrtbased.dll · signed by Microsoft Windows Kits Publisher

eb5c88cb0afbea095fa45654d175bf5d25e31f0d8dcf8283bbc4dce7a9386647

10.0.19041.1 (WinBuild.160101.0800) · C:\Program Files (x86)\Windows Kits\10\bin\10.0.19041.0\x64\ucrt\ucrtbased.dll · signed by Microsoft Corporation

ffe8d5e35f28de6cea97d9a570728b149288ee32b0075285a8c28a13e650a074

From the file’s version info and the copies recorded by xCyclopedia (MIT). A copy in another folder, signed by someone else or with another hash is not necessarily malicious, but it is worth a closer look. In Ceplin, "<sha256>".whatis() says which known copy a hash is.