eb, ed, eq

Description of 'eb', 'ed', and 'eq' functions in HyperDbg Scripts

Function

eb

ed

eq

Syntax

eb( Address, Value );

ed( Address, Value );

eq( Address, Value );

Parameters

[Expression (Address)]

Address of the target memory that needs to be modified.

[Expression (Value)]

The value that needs to be replaced on the target address.

Description

eb modifies a single byte.

ed modifies a dwrod.

eq modifies a qword value.

Return value

If the address is valid, then the above functions return 1. Otherwise, 0 is returned.

Examples

The following code edits memory (quad-word) at fffff8031d44fde0 and change it to 0x12345678deadbeef.

IsEditApplied = eq(fffff8031d44fde0, 0x12345678deadbeef);

The following code changes a byte to 0x90 at the location that the rcx register is pointing to, then adds 0x8 to it.

IsEditApplied = eb(poi(@rcx)+8, 0x90);

You can also use these functions without checking for the return value.

eq(fffff8031d44fde0, 0x12345678deadbeef);

It's possible to use these functions with an if statement.

if (eq(@r11, 0x12345678deadbeef) == 1) 
{ 
	printf("changes are applied.\n");
}
else 
{
	printf("changes are NOT applied.\n");
}

Remarks

None

Related

None