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api.py
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api.py
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import time
import struct
import lz4.block
from define import OS
import requests
class FRIDA:
def __init__(self, frida_api, config):
self.frida_api = frida_api
self.config = config
self.custom_read_memory = config["extended_function"]["custom_read_memory"]
self.target_os = config["general"]["target_os"]
def decompress_lz4(self, data):
# iOS
if self.custom_read_memory and self.target_os == OS.IOS.value:
decompress_bytes = b""
tmp = data
last_uncompressed = b""
# todo:bv4-
while True:
if (tmp[0:4] != b"bv41") or (tmp[0:4] == b"bv4$"):
break
uncompressed_size, compressed_size = struct.unpack("<II", tmp[4:12])
last_uncompressed = lz4.block.decompress(
tmp[12 : 12 + compressed_size],
uncompressed_size,
dict=last_uncompressed,
)
tmp = tmp[12 + compressed_size :]
decompress_bytes += last_uncompressed
ret = decompress_bytes
return ret
elif self.custom_read_memory and self.target_os == OS.ANDROID.value:
uncompressed_size = struct.unpack("<I", data[-4:])[0]
decompress_bytes = lz4.block.decompress(data[:-4], uncompressed_size)
ret = decompress_bytes
return ret
else:
return data
def writeprocessmemory(self, address, bytecode):
return self.frida_api.WriteProcessMemory(address, list(bytecode))
def readprocessmemory(self, address, size):
if size < 1000:
ret = self.frida_api.ReadProcessMemory(address, size, False)
else:
ret = self.frida_api.ReadProcessMemory(address, size, True)
if ret:
ret = self.decompress_lz4(ret)
return ret
def virtualqueryexfull(self, protect):
return self.frida_api.VirtualQueryExFull(protect)
def getmodule(self, name):
return self.frida_api.GetModule(name)
def getsymbol(self, address):
return self.frida_api.GetSymbol(address)
def memoryscan(self, start, size, bytecode):
return self.frida_api.MemoryScan(start, size, bytecode)
def memoryfilter(self, addresses):
return self.frida_api.MemoryFilter(addresses)
def enummodules(self):
return self.frida_api.EnumModules()
def enumranges(self):
return self.frida_api.EnumRanges()
class MEMORY_SERVER(FRIDA):
def __init__(self, frida_api, config):
super().__init__(frida_api, config)
self.base_url = "http://" + config["ipconfig"]["memory_server_ip"]
self.frida_api = frida_api
self.pid = self.frida_api.GetInfo()["pid"]
self.openprocess(self.pid)
def openprocess(self, pid):
open_process_url = f"{self.base_url}/openprocess"
open_process_payload = {"pid": pid}
open_process_response = requests.post(
open_process_url, json=open_process_payload, proxies={}
)
if open_process_response.status_code == 200:
print(f"Process {pid} opened successfully")
return True
else:
print(
f"Failed to open process {pid}:{open_process_response.content.decode()}"
)
return False
def readprocessmemory(self, address, size):
read_memory_url = f"{self.base_url}/readmemory"
params = {"address": address, "size": size}
read_memory_response = requests.post(read_memory_url, params=params)
if read_memory_response.status_code == 200:
result = read_memory_response.content
return result
else:
print(f"Memory read failed:{read_memory_response.content.decode()}")
return False
def memoryscan(
self,
pattern,
address_ranges,
scan_type,
scan_id,
return_as_json=False,
):
memory_scan_url = f"{self.base_url}/memoryscan"
memory_scan_payload = {
"pattern": pattern,
"address_ranges": address_ranges,
"scan_type": scan_type,
"scan_id": scan_id,
"return_as_json": return_as_json,
}
start = time.time()
memory_scan_response = requests.post(memory_scan_url, json=memory_scan_payload)
end = time.time()
network_time = end - start
if memory_scan_response.status_code == 200:
result = memory_scan_response.json()
print(f"Pattern found {result['found']} times")
print(f"Network time: {network_time}")
return result
else:
print(f"Memory scan failed:{memory_scan_response.content.decode()}")
return False
def memoryfilter(
self, pattern, scan_type, scan_id, filter_method, return_as_json=False
):
memory_filter_url = f"{self.base_url}/memoryfilter"
memory_filter_payload = {
"pattern": pattern,
"scan_type": scan_type,
"scan_id": scan_id,
"filter_method": filter_method,
"return_as_json": return_as_json,
}
start = time.time()
memory_filter_response = requests.post(
memory_filter_url, json=memory_filter_payload
)
end = time.time()
network_time = end - start
if memory_filter_response.status_code == 200:
result = memory_filter_response.json()
print(f"Pattern found {result['found']} times")
print(f"Network time: {network_time}")
return result
else:
print(f"Memory filter failed:{memory_filter_response.content.decode()}")
return False