Auto Assembler:alloc

Auto Assembler alloc(SymbolName, Size, AllocateNearThisAddress OPTIONAL)

Allocates a memory block of Size bytes and defines the SymbolName in the script, pointing to the beginning of the allocated memory block. If the optional parameter AllocateNearThisAddress is specified then the CE will try to allocate the memory near to this address (this is useful for 64-bit targets where the jump distance could be bigger than 2GB otherwise).

Note: Use dealloc to free the memory when done.

Note2: There are 2 other alloc variants: allocnx and allocxo. allocnx will allocate memory as non-executable. allocxo will allocate memory as execute only. (These are required when using a Mac)

Note3

Command Parameters

Parameter	Type	Description
SymbolName	string	The symbol name to use for allocated memory
Size	integer	The byte size of the block of memory to allocate
AllocateNearThisAddress	string	The address to allocate near if given

Examples

alloc(SomeSymbol, 0x4)

alloc(SomeSymbol, 0x1000)

alloc(SomeSymbol, $1000)

alloc(SomeSymbol, 0x4, Tutorial-x86_64.exe+164C2)

From the SunBeam: CE actually fetches the module and allocates close to the end of the module. Additionally specifying +164C2 does not add to it in any way :D Jus' sayin' Tutorial-x86_64.exe is enough.post

alloc(SomeSymbol, 0x4, SomeAOBSymbol)

alloc(SomeSymbol, 0x1000, Tutorial-x86_64.exe)

alloc(SomeSymbol, $1000, Tutorial-x86_64.exe)

alloc(memloc1,4)

00451029:
jmp 00410000
nop
nop
nop

00410000:
mov [memloc1],esi
mov [esi+80],ebx
xor eax,eax
jmp 00451031

See also

• Auto Assembler
• Auto Assembler Commands

Related Commands

• aobScan
• aobScanModule
• dealloc
• createThread
• define
• fullAccess
• globalAlloc
• include
• label
• loadBinary
• loadLibrary
• readMem
• registerSymbol
• unregisterSymbol
• LUA ASM