Technique Search Instance

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{
    "id": 82,
    "key": "obscuring-control-flow",
    "unprotect_id": "U0212",
    "name": "Obscuring Control Flow",
    "description": "Obscuring control flow is an anti-disassembling technique that involves using methods of flow control that are difficult or impossible for disassemblers and debuggers to follow. This can make it more difficult for analysts to understand the program's behavior and can also make it more difficult for other tools, such as debuggers, to accurately interpret the program.\r\n\r\nOne example of this technique is the use of the Structure Exception Handling (SEH) mechanism in the Microsoft Windows operating system. SEH provides a way to handle exceptions, which are runtime errors that occur during the execution of a program. It allows the programmer to define a set of exception handlers that are called whenever an exception occurs. These exception handlers can be used to handle the exception and continue the program's execution, or to log the error and terminate the program.\r\n\r\nSEH provides a method of flow control that is difficult for disassemblers and debuggers to follow, because the exception handlers are not part of the program's normal control flow. Disassemblers and debuggers are not able to accurately reconstruct the program's original instructions when SEH is used, because they cannot determine the intended behavior of the program without actually executing it.",
    "resources": "https://www.malwinator.com/2015/11/27/anti-disassembly-techniques-used-by-malware-a-primer-part-2/",
    "creation_date": "2019-03-18T13:54:18Z",
    "tags": "Obscuring control flow,\r\nAnti-disassembling,\r\nException handling,\r\nStructure Exception Handling (SEH),\r\nControl flow,\r\nException handler,",
    "modification_date": "2023-10-04T10:42:49.627000Z",
    "category": [
        5
    ],
    "rules": [],
    "attachments": [],
    "featured_api": [
        394
    ],
    "contributors": []
}