This technique has been deprecated and should no longer be used.
As of OS X 10.8, mach-O binaries introduced a new header called LC_MAIN that points to the binary’s entry point for execution. Previously, there were two headers to achieve this same effect: LC_THREAD and LC_UNIXTHREAD[1]. The entry point for a binary can be hijacked so that initial execution flows to a malicious addition (either another section or a code cave) and then goes back to the initial entry point so that the victim doesn’t know anything was different[2]. By modifying a binary in this way, application whitelisting can be bypassed because the file name or application path is still the same.
References
- Bit9 + Carbon Black Threat Research Team. (2015). 2015: The Most Prolific Year in History for OS X Malware. Retrieved July 8, 2017.
- Patrick Wardle. (2014, September). Methods of Malware Persistence on Mac OS X. Retrieved July 5, 2017.
Prepojené úlohy
| Typ prepojenia | Úloha |
|---|---|
| is related to | Techniques |
- MITREATTACK -
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