Created the Tuesday 13 October 2020. Updated 2 months ago.
Edit controls are a type of user interface element that allows a user to enter and edit text in a graphical user interface (GUI). They are commonly used in Windows applications and can be embedded directly into a GUI or subclassed as a separate window. Edit controls can be set to display text in multiline mode, in which case they use a special callback function called the EditWordBreakProc to handle word wrapping.
EditWordBreakProc callback function is called anytime the control needs to perform an operation related to word wrapping. This function can be modified for any window by sending the EM_SETWORDBREAKPROC message to the window. If the window is an edit control or a descendant of an edit control, modifying the
EditWordBreakProc callback function can cause unexpected behavior.
One way to trigger the execution of the
EditWordBreakProc callback function is to simulate keyboard input using the
PostMessage APIs. These APIs allow a program to send input events, such as keystrokes or mouse movements, to a window or application as if they were being generated by a user. If the input events are directed at an edit control or a descendant of an edit control, they may cause the
EditWordBreakProc callback function to be called.
Featured Windows API's
Below, you will find a list of the most commonly used Windows API's that are currently utilized by malware authors for current evasion technique. This list is meant to provide an overview of the API's that are commonly used for this purpose. If there are any API's that you feel should be included on this list, please do not hesitate to contact us. We will be happy to update the list and provide any additional information or documentation that may be helpful.