通常的我们在软件发布前要对binary（dll，exe）进行数字签名，数字签名可以标识软件的发布商，也可以通过数字签名来检查此软件是否被修改或受病毒影响。
在需要检查某个文件的数字签名时，通常情况下总是需要打开文件的属性对话框，切换到“数字签名”对话框，然后才能在这里查看到相关的数字签名信息，如下图：
sigcheck是来自sysinternals的数字签名验证工具，可以查看指定的文件或目录下的哪些文件没有数字签名。 此工具是命令行工具，可以用来批量检查某个文件夹下相关文件的数字签名。
帮助如下：
使用如下：
对目录C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE及子目录下的所有的binaries检查数字签名，将没有签名的文件输出到sigcheck.txt中。
sigcheck -s -q -e -u "C:\Program Files (x86)\Microsoft Visual Studio 10.0\Common7\IDE" > sigcheck.txt
运行后的sigcheck.txt类似于如下：
c:\program files (x86)\microsoft visual studio 10.0\common7\ide\coloader80.tlb:
Verified: Unsigned
File date: 12:17 AM 3/18/2010
Publisher: Microsoft Corporation
Description: VS Loader Type Library
Product: Microsoft?Visual Studio?2010
Version: 10.0.30319.1
File version: 10.0.30319.1 built by: RTMRel
c:\program files (x86)\microsoft visual studio 10.0\common7\ide\devenv.com:
Verified: Unsigned
File date: 3:04 AM 3/18/2010
Publisher: Microsoft Corporation
Description: Microsoft Visual Studio Command Line
Product: Microsoft?Visual Studio?2010
Version: 10.0.30319.1
File version: 10.0.30319.1 built by: RTMRel
c:\program files (x86)\microsoft visual studio 10.0\common7\ide\PrivateAssemblies\Microsoft.TeamFoundation.OfficeIntegration.Common.tlb:
Verified: Unsigned
File date: 4:28 AM 3/18/2010
Publisher: Microsoft Corporation
Description: Microsoft.TeamFoundation.OfficeIntegration.Common.dll
Product: Microsoft?Visual Studio?2010
Version: 10.0.30319.1
File version: 10.0.30319.1 built by: RTMRel
c:\program files (x86)\microsoft visual studio 10.0\common7\ide\PrivateAssemblies\Microsoft.VisualStudio.OLE.Interop.dll:
Verified: Unsigned
File date: 6:22 PM 11/20/2009
Publisher: Microsoft Corporation
Description:
Product: Microsoft?Visual Studio .NET
Version: 7.10.6070
File version: 7.10.6070
Verified: Unsigned
File date: 12:17 AM 3/18/2010
Publisher: Microsoft Corporation
Description: VS Loader Type Library
Product: Microsoft?Visual Studio?2010
Version: 10.0.30319.1
File version: 10.0.30319.1 built by: RTMRel
c:\program files (x86)\microsoft visual studio 10.0\common7\ide\devenv.com:
Verified: Unsigned
File date: 3:04 AM 3/18/2010
Publisher: Microsoft Corporation
Description: Microsoft Visual Studio Command Line
Product: Microsoft?Visual Studio?2010
Version: 10.0.30319.1
File version: 10.0.30319.1 built by: RTMRel
c:\program files (x86)\microsoft visual studio 10.0\common7\ide\PrivateAssemblies\Microsoft.TeamFoundation.OfficeIntegration.Common.tlb:
Verified: Unsigned
File date: 4:28 AM 3/18/2010
Publisher: Microsoft Corporation
Description: Microsoft.TeamFoundation.OfficeIntegration.Common.dll
Product: Microsoft?Visual Studio?2010
Version: 10.0.30319.1
File version: 10.0.30319.1 built by: RTMRel
c:\program files (x86)\microsoft visual studio 10.0\common7\ide\PrivateAssemblies\Microsoft.VisualStudio.OLE.Interop.dll:
Verified: Unsigned
File date: 6:22 PM 11/20/2009
Publisher: Microsoft Corporation
Description:
Product: Microsoft?Visual Studio .NET
Version: 7.10.6070
File version: 7.10.6070
完！