Adversaries may attempt to make payloads difficult to discover and analyze by delivering files to victims as uncompiled code. Text-based source code files may subvert analysis and scrutiny from protections targeting executables/binaries. These payloads will need to be compiled before execution; typically via native utilities such as ilasm.exe[1], csc.exe, or GCC/MinGW.[2]
Source code payloads may also be encrypted, encoded, and/or embedded within other files, such as those delivered as a Phishing. Payloads may also be delivered in formats unrecognizable and inherently benign to the native OS (ex: EXEs on macOS/Linux) before later being (re)compiled into a proper executable binary with a bundled compiler and execution framework.[3]
References
- Federico Quattrin, Nick Desler, Tin Tam, & Matthew Rutkoske. (2023, March 16). Hiding in Plain Sight: Monitoring and Testing for Living-Off-the-Land Binaries. Retrieved July 15, 2024.
- ClearSky Cyber Security. (2018, November). MuddyWater Operations in Lebanon and Oman: Using an Israeli compromised domain for a two-stage campaign. Retrieved November 29, 2018.
- Trend Micro. (2019, February 11). Windows App Runs on Mac, Downloads Info Stealer and Adware. Retrieved April 25, 2019.
Susietos užduotys
| Saito tipas | Užduotis |
|---|---|
| is related to | Techniques |
| is blocked by | Detection Strategy for Compile After Delivery - Source Code to Executable Transformation |
- MITREATTACK -
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