Igor’s Tip of the Week #148: Fixing “call analysis failed”

This error is not very common but may appear in some situations.

Such errors happen when there is a function call in the code, but the decompiler fails to convert it to a high-level function call, e.g.:

1. the target function’s prototype is missing or invalid;


2. the decompiler failed to figure out the function arguments: how many of them, or how exactly they’re being passed to the callee;


3. the usage of the stack by the call does not make sense.

Let’s …

analysis call code decompiler error errors function high malware analysis may missing prototype target week