I would like to know about tracing system call in FreeBSD.

[Ivan Voras]

hjung20 at illinois.edu wrote:
> Dear,
> 
> I have tried to trace system call using C language.
> 
> I would like to detect privilege escalation through traceing system call.
> Although freebsd announce the patch of telnet demon to remove malicious access to esaclate privilege, I would like to implement the detecting program.
> 
> My idea is if I detect the change of uid of process then I can recongnize the privilege escalation.

Maybe the audit(4) framework will be useful to you.

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