you have to setup "distorm" python package first , it's a powerful disassembler library
if __name__=='__main__':
code=open('distorm3.dll', 'rb').read()
#===================show line number===============
g_srop_linenumber=5
#===================search instruction=============
g_regular_expression=re.compile('RET')
#g_regular_expression=re.compile('CALL.*[ ]EAX')
#g_regular_expression=re.compile('POP.*[ ]ESI')
g_srop_discernfunc=SROP_discern_instruction
SROP_findinstruction_at_va(0x10000000, code[0x400:], 0xa200)
sys.exit(0)
#===================search hex=====================
g_hex='C3'
g_srop_discernfunc=SROP_discern_hex
SROP_findinstruction_at_va(0x10000000, code[0x400:], 0xa200)
sys.exit(0)