idenLib - Library Function Identification
When analyzing malware or 3rd party software, it's challenging to identify statically linked libraries and to understand what a function from the library is doing.
idenLib.exe is a tool for generating library signatures from
How does idenLib.exe generate signatures?
- Parses input file(
.objfile) to get a list of function addresses and function names.
- Gets the last opcode from each instruction
Compresses the signature with zstd
Saves the signature under the
SymExdirectory, if the input filename is
zlib.lib, the output will be
zlib.lib.sig(64)already exists under the
SymExdirectory from a previous execution or from the previous version of the library, the next execution will append different signatures. If you execute
idenLib.exeseveral times with different version of the
sig64file will include all unique function signatures.
Generating library signatures
IDA Pro plugin usage:
IDA Pro's main directory
- Apply signatures:
- Detailed information about
C Run-Time Libraries (CRT);