
INT3 Instruction Scanning
Created the Monday 18 March 2019. Updated 3 months, 1 week ago.
Instruction INT3
is an interruption which is used as Software breakpoints. These breakpoints are set by modifying the code at the target address, replacing it with a byte value 0xCC
(INT3 / Breakpoint Interrupt).
The exception EXCEPTION_BREAKPOINT
(0x80000003) is generated, and an exception handler will be raised. Malware identify software breakpoints by scanning for the byte 0xCC in the protector code and/or an API code.
Code Snippets
Detection Rules
Contributors
Additional Resources
External Links
The resources provided below are associated links that will give you even more detailed information and research on current evasion technique. It is important to note that, while these resources may be helpful, it is important to exercise caution when following external links. As always, be careful when clicking on links from unknown sources, as they may lead to malicious content.