However,and [eax], 0will choke, as 0 can be byte, word or dword: and dword ptr [eax], 0 ; much shorter than mov dword ptr [eax], 0 and word ptr [eax], 0 and byte ptr [eax], 0 mov dword ptr [eax], 0 or dword ptr [eax], -1 ; much shorter than mov dword ptr [eax...
mov dword ptr [rdi], 0 retCompiled ARM64a: str wzr, [x0] ret 在x86-64,非常通用的mov指令被用于从一个地方到另一个地方复制(“移动”)数据;在这个场景中,是从一个常量0到内存。在ARM64上,str(存储寄存器)指令被用于将一个32位寄存器的值存入内存。在这个场景中,特殊的wzr寄存器被使用了,它永远包含...
db,写字节;dw,写2字节;dd,写4字节或单浮点值;dq,写双浮点值或8字节 mov byte ptr [aaaaa],0x0F //byte字节,word字(2字节),dword双字(4字节) test eax,eax: 等同于 cmp eax,0 ,比较eax是否为0。 @f,向下转移到最近的 @@ 处;@B,向上转移到最近的 @@ 处。@@,在汇编中,作标号标签用。 global...
CALL 寄存器 - 如果寄存器存的值为404000,那就等同于第一种情况 CALL DWORD PTR [EAX] CALL [EAX]偏移量所指向的地址 CALL DWORD PTR [EAX+5] ;; CALL [EAX+5]偏移量所指向的地址 CDQ Syntax: CDQ CDQ指令第一次出现时通常不好理解。它通常出现在除法前面,作用是将EDX的所有位变成EAX最高位的值, 比如...
0x00007ffff6184e97: mov DWORD PTR [rbp-0x4dc],0x0 Stack Head (1001 entries): _IO_vfprintf_internal @ 0x00007ffff6184e7d: in /lib/x86_64-linux-gnu/libc-2.19.so (BL) buffered_vfprintf @ 0x00007ffff618a021: in /lib/x86_64-linux-gnu/libc-2.19.so (BL) ...
reg add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecureBoot\SBAT /v OptOut /d 1 /t REG_DWORD At this point, you should now be able to boot into Linux or Windows as before. It’s a good time to install any pending Linux updates to ensure your system is secure. ...
temp!main+0x15:00401015ff1504204000calldwordptr[temp!_imp__CreateFileA (00402004)]{kernel32!CreateFileA (77e7b476)} ds:0023:00402004=77e7b476 Luckily, it's a constant so the memory will still be around. It would still be around even if it wasn't though since we didn't step too far...
TheRegister PTR Recordspolicy A new possible value, 0x2, of theREG_DWORD RegisterReverseLookupentry was added under the following registry subkey: HKLM\Software\Policies\Microsoft\Windows NT\DNSClient The following are the entry values forRegisterReverseLookup: - ...
0x40000000: jmp DWORD PTR __imp_func1 Here__imp_func1is the address forfunc1's slot in the import address table of the .EXE file. All the addresses are thus known to the linker. The loader only has to update the .EXE file's import address table at load time for everything to wo...
x86::Mem mem = x86::dword_ptr(rax, 12); // dword ptr [rax + 12]. mem.hasBase(); // true. mem.hasIndex(); // false. mem.size(); // 4. mem.offset(); // 12. mem.setSize(0); // Sets the size to 0 (makes it sizeless). mem.addOffset(-1); // Adds -1 to the...