def obfuscate_sample(sample_file_name, obfuscator_list, sample_tf_dir):
'''This function obfucate a sample with the obfuscators in the list using a temporary directory as support'''
init(sample_tf_dir)
if enable_logging:
u.logger('Obfuscate Request: %s - %s - %s' %
(sample_file_name, obfuscator_list, sample_tf_dir))
else:
u.logger('Obfuscate Request')
if not debug:
clean_temp(sample_tf_dir)
backsmali(sample_tf_dir, sample_file_name)
start_time = datetime.utcnow()
if enable_logging:
u.logger('Obfuscate Start: ' + str(start_time))
try:
for obfuscator_item in obfuscator_list:
obfuscator_method = obfuscator_mapping[obfuscator_item]
obfuscator_method(sample_file_name, sample_tf_dir)
except KeyError as ex:
raise e.RunningObfuscatorException('Invalid obfuscator id ' + str(ex))
end_time = datetime.utcnow()
if enable_logging:
u.logger('Obfuscate Stop: ' + str(end_time))
u.logger('Obfuscate Time: ' + str(end_time - start_time))
if cleanup:
sample_ob_file_name = sample_file_name + 'Ob'
else:
sample_ob_file_name = sample_file_name
smali(sample_tf_dir, sample_ob_file_name)
sign_apk(sample_ob_file_name)
if not debug:
clean_temp(sample_tf_dir)
if cleanup:
clean_apk(sample_file_name)
u.logger('### SUCCESS ### {' + str(end_time - start_time) + '}')
def run_obfuscator_lib(sample_file_name, sample_tf_dir):
try:
if enable_logging:
u.logger('Obfuscator Lib')
apply_py_obfuscator(sample_file_name, sample_tf_dir, obfuscator_lib)
except e.RunningObfuscatorException as ex:
raise e.RunningObfuscatorException(str(ex) + '\nUnable to apply Lib')
def run_obfuscator_zip(sample_file_name, sample_tf_dir):
try:
if enable_logging:
u.logger('Obfuscator Align')
apply_zip(sample_file_name)
except e.RunningObfuscatorException as ex:
raise e.RunningObfuscatorException(str(ex) + '\nUnable to apply Align')
def run_obfuscator_resigned(sample_file_name, sample_tf_dir):
try:
if enable_logging:
u.logger('Obfuscator Resign')
apply_resign(sample_file_name)
except e.OpenToolException as ex:
raise e.RunningObfuscatorException(
str(ex) + '\nUnable to apply Resign')
def popen(com_str):
p = sub.Popen(com_str, shell=True, stdout=sub.PIPE, stderr=sub.PIPE)
out, err = p.communicate()
if enable_logging:
u.logger(out)
u.logger(err)
if 'Exception' in out or 'Exception' in err:
if 'method index is too large' in out or 'method index is too large' in err:
raise e.AndroidLimitException('Unable run :' + com_str)
elif 'java.lang.ArrayIndexOutOfBoundsException' in out or 'java.lang.ArrayIndexOutOfBoundsException' in err:
raise e.AndroidRandomException('Unable run :' + com_str)
else:
raise e.RunningObfuscatorException('Unable run :' + com_str)
def apply_py_obfuscator(sample_file_name, sample_tf_dir, obfuscatorPy):
'''Apply an obfuscator'''
try:
if enable_logging:
u.logger('Python Obfuscator!')
#backsmali(sample_tf_dir, sample_file_name)
obfuscatorPy.obfuscate()
if debug:
smali(sample_tf_dir, sample_file_name)
#sign_apk(sample_file_name)
#clean_temp(sample_tf_dir)
except (e.OpenToolException, e.LoadFileException) as ex:
raise e.RunningObfuscatorException(
str(ex) + '\nUnable run python obfuscator')
def apply_zip(sample_file_name): # Zipaling an apk file
try:
zip_align(sample_file_name)
except e.OpenToolException as ex:
raise e.RunningObfuscatorException(str(ex))
def apply_resign(sample_file_name): # Resign an apk file
try:
design_apk(sample_file_name)
sign_apk(sample_file_name)
except e.OpenToolException as ex:
raise e.RunningObfuscatorException(str(ex))
