I need to modify some source code. I need to get a 2nd string from given string which contains 2 string. The length of 1st string is always changed time to time. For example:

NuQW4CSS0Qpa8TnZ

or in hex:

01 01 01 01 01 01 01 01 1C 01 01 01 01 01 08 4E 75 51 57 34 43 53 53 01 01 01 01 01 08 30 51 70 61 38 54 6E 5A

the 1st string

NuQW4CSS (4E 75 51 57 34 43 53 53)

it begins with 1 byte in front (08) as the length of the string

the 2nd string

0Qpa8TnZ (30 51 70 61 38 54 6E 5A)

it also begins with 1 byte in front (08) as the length of the string

The problem in the source code i got is, it gets the 2nd string with fixed method, always get it from the 29th byte, which is actually the 2nd string is not always at that position.

getstring.zip

something like this:

.if dx==BN_CLICKED	.IF ax==IDC_GET
		pushad
		mov esi, offset packet01
		.repeat
			lodsb
		.until al != 1 && byte ptr [esi+1] != 1
		mov	edi, offset GetHash01
		movzx ecx,al 
		rep	movsb
		.repeat
			lodsb
		.until al != 1
		mov	edi, offset GetHash02
		movzx ecx,al 
		rep	movsb
		invoke SetDlgItemText,hwwnd,EDIT_HASHSTRING1,addr GetHash01
		invoke SetDlgItemText,hwwnd,EDIT_HASHSTRING1,addr GetHash02
		popad	.ENDIF
.ENDIF