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hex_viewer.py
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import inspect
import platform
import re
from PyQt6 import QtGui, QtCore
from PyQt6.QtCore import Qt, pyqtSlot, QEvent, QObject
from PyQt6.QtGui import QTextCursor, QAction, QCursor
from PyQt6.QtWidgets import QTextEdit, QApplication, QWidget, QVBoxLayout, QSlider, QLabel, QHBoxLayout, QPushButton, \
QCheckBox, QWidgetAction, QLineEdit
import gvar
import misc
def get_hex_code(tc, pos, tcx, tcy, block_text, hex_start, caller):
if caller == "text_changed_event" and pos is not None:
tc.setPosition(pos, QTextCursor.MoveMode.MoveAnchor)
tcx = tc.positionInBlock()
block_text = tc.block().text()
# addr = hex(int(block_text[:block_text.find(" ")], 16) + (tcx - hex_start) // 3)
cursor_len_4bytes = 12
cursor_len_8bytes = 12 * 2
hex_code = None
if tcx in [hex_start, hex_start + 1, hex_start + 2]:
if caller == 'copy_pointer':
hex_code = block_text[hex_start:hex_start + cursor_len_8bytes - 1] if gvar.arch == "arm64" else \
block_text[hex_start:hex_start + cursor_len_4bytes - 1]
else:
hex_code = block_text[hex_start:hex_start + cursor_len_8bytes - 1]
elif tcx in [hex_start + cursor_len_4bytes, hex_start + cursor_len_4bytes + 1, hex_start + cursor_len_4bytes + 2]:
hex_code = block_text[
hex_start + cursor_len_4bytes:hex_start + cursor_len_4bytes + cursor_len_8bytes - 1]
elif tcx in [hex_start + cursor_len_8bytes, hex_start + cursor_len_8bytes + 1, hex_start + cursor_len_8bytes + 2]:
if caller == 'copy_pointer':
hex_code = block_text[hex_start + cursor_len_8bytes:hex_start + 2 * cursor_len_8bytes - 1] if gvar.arch == "arm64" else \
block_text[hex_start + cursor_len_8bytes:hex_start + 3 * cursor_len_4bytes - 1]
else:
hex_code = block_text[hex_start + cursor_len_8bytes:hex_start + 2 * cursor_len_8bytes - 1]
elif tcx in [hex_start + 3 * cursor_len_4bytes, hex_start + 3 * cursor_len_4bytes + 1,
hex_start + 3 * cursor_len_4bytes + 2]:
hex_code = block_text[hex_start + 3 * cursor_len_4bytes:hex_start + 4 * cursor_len_4bytes - 1]
addr = hex(int(block_text[:block_text.find(" ")], 16) + (tcx - hex_start) // 3)
return [addr, hex_code]
# A signal manager for a class that cannot send signals to the main class or other classes
class HexViewerSignalManager(QObject):
backtrace_text_edit_backtrace_addr_clicked_signal = QtCore.pyqtSignal(str)
close_backtrace_signal = QtCore.pyqtSignal()
class HexViewerClass(QTextEdit):
wheel_up_signal = QtCore.pyqtSignal(str)
wheel_signal = QtCore.pyqtSignal(str)
scroll_signal = QtCore.pyqtSignal(int)
move_signal = QtCore.pyqtSignal(int)
refresh_signal = QtCore.pyqtSignal(int)
watch_list_signal = QtCore.pyqtSignal(list)
mem_patch_addr_signal = QtCore.pyqtSignal(str)
set_watchpoint_addr_signal = QtCore.pyqtSignal(str)
add_address_to_history_signal = QtCore.pyqtSignal(str)
def __init__(self, args):
super(HexViewerClass, self).__init__(args)
self.hit_count = 0
self.verticalScrollBar().sliderMoved.connect(self.setScrollBarPos)
self.statusBar = None
self.watch_on_addr_widget = WatchOnAddrWidget()
self.watch_on_addr_widget.watch_on_addr_widget_close_event_signal.connect(self.watch_on_addr_widget_close_event_sig_func)
# Hexviewer text changed event
self.textChanged.connect(self.text_changed_event)
self.hex_code_read_widget = None
self.hex_code_read_tc = None
self.hex_code_read_pos = None
self.hex_code_read_tcx = None
self.hex_code_read_tcy = None
self.hex_code_read_block_text = None
self.hex_code_read_hex_start = None
@pyqtSlot(str)
def message_sig_func(self, sig: str):
# print(f"[hex_viewer] watching...{sig}")
# Append the new message to the text edit
line_count = self.watch_on_addr_widget.text_edit.document().lineCount()
if line_count > 1000:
self.watch_on_addr_widget.text_edit.clear()
self.watch_on_addr_widget.text_edit.append(sig)
@pyqtSlot(str)
def set_watch_func_sig_func(self, sig: str):
self.set_watch_on_addr("watch_func", sig, "set_watch_func_sig_func")
@pyqtSlot(str)
def set_watch_regs_sig_func(self, sig: str):
self.set_watch_on_addr("watch_regs", sig, "set_watch_regs_sig_func")
@pyqtSlot(str)
def history_remove_row_sig_func(self, sig: str): # sig: item's text
# Detach All --> re-attach
try:
gvar.frida_instrument.detach_all()
gvar.hex_viewer_signal_manager.close_backtrace_signal.emit()
except Exception as e:
print(f"[hex_viewer] {inspect.currentframe().f_code.co_name}: {e}")
return
self.watch_on_addr_widget.watch_list = [item for item in self.watch_on_addr_widget.watch_list if item[0] != sig]
if self.watch_on_addr_widget.watch_list:
for item in self.watch_on_addr_widget.watch_list:
self.set_watch_on_addr("watch_func" if item[1] is False else "watch_regs", item[0],
"history_remove_row_sig_func")
@pyqtSlot()
def watch_on_addr_widget_close_event_sig_func(self):
self.watch_list_signal.emit(self.watch_on_addr_widget.watch_list)
def setScrollBarPos(self, value):
# print("[hackcatml] slidermoved: ", value)
self.scroll_signal.emit(value)
gvar.current_frame_block_number = round(value / 15)
# Wheelevent https://spec.tistory.com/449
def wheelEvent(self, e: QtGui.QWheelEvent) -> None:
delta = e.angleDelta().y()
# wheel down
if delta < 0:
gvar.current_frame_block_number += -1 * delta / 120 * 4
# wheel up
elif delta > 0 and gvar.current_frame_block_number > 0:
gvar.current_frame_block_number -= delta / 120 * 4
tc = self.textCursor()
tc.movePosition(QTextCursor.MoveOperation.Start, QTextCursor.MoveMode.MoveAnchor, 1)
tc.movePosition(QTextCursor.MoveOperation.Down, QTextCursor.MoveMode.MoveAnchor, int(gvar.current_frame_block_number))
gvar.current_frame_start_address = "".join(("0x", tc.block().text()[:tc.block().text().find(' ')]))
if tc.blockNumber() == 0 and re.search(r"\d+\. 0x[0-9a-f]+, module:", tc.block().text()) is None:
self.hit_count += 1
if self.hit_count > 0 and delta > 0:
self.wheel_up_signal.emit(gvar.current_frame_start_address)
self.hit_count = 0
elif re.search(r"\d+\. 0x[0-9a-f]+, module:", tc.block().text()) is None:
self.wheel_signal.emit(gvar.current_frame_start_address)
# print("[hackcatml] gvar.current_frame_block_number: ", gvar.current_frame_block_number)
# print("[hackcatml] tc.blockNumber(): ", tc.blockNumber())
# print("[hackcatml] tc.block().text(): ", tc.block().text())
# print("[hackcatml] gvar.current_frame_start_address: ", gvar.current_frame_start_address)
return super(HexViewerClass, self).wheelEvent(e)
def keyReleaseEvent(self, e: QtGui.QKeyEvent) -> None:
# If key is hexedit shortcut key then just return. if not hexeditor behavior is weird
if e.key() == Qt.Key.Key_F2:
return
tc = self.textCursor()
tcx = tc.positionInBlock()
# print("keyrelease pos: ", tcx)
indices = [i for i, x in enumerate(tc.block().text()) if x == " "]
if len(indices) == 0:
return
if tcx in range(indices[1]):
return
# Change color on edited hex as black -> red
if self.isReadOnly() is False:
self.moveCursor(QTextCursor.MoveOperation.Left, QTextCursor.MoveMode.KeepAnchor)
self.setTextColor(QtGui.QColor("Red"))
self.moveCursor(QTextCursor.MoveOperation.Right)
if tcx in range(indices[2], indices[len(indices) - 2] + 3, 3) and e.key() != Qt.Key.Key_Left:
if tcx == indices[len(indices) - 2]:
self.moveCursor(QTextCursor.MoveOperation.Down)
self.moveCursor(QTextCursor.MoveOperation.StartOfLine)
self.moveCursor(QTextCursor.MoveOperation.NextWord)
return
self.moveCursor(QTextCursor.MoveOperation.Right)
return
def keyPressEvent(self, e: QtGui.QKeyEvent) -> None:
tc = self.textCursor()
tcx = tc.positionInBlock()
tcy = tc.anchor()
# print("keypress pos: ", tcx, tcy)
# Backspace, delete, enter, left key and space is not allowed
if e.key() in (
QtCore.Qt.Key.Key_Backspace, QtCore.Qt.Key.Key_Delete, QtCore.Qt.Key.Key_Return, Qt.Key.Key_Left, Qt.Key.Key_Space
): return
# Hexedit 모드에서 ctrl + a, cmd + a (select all), ctrl + v, cmd + v (paste) is not allowed
# if self.isReadOnly() is False:
if (e.keyCombination().keyboardModifiers() == QtCore.Qt.KeyboardModifier.MetaModifier or e.keyCombination().keyboardModifiers() == QtCore.Qt.KeyboardModifier.ControlModifier) and e.key() == QtCore.Qt.Key.Key_A:
# print("ctrl + a, cmd + a is not allowed")
return
if (e.keyCombination().keyboardModifiers() == QtCore.Qt.KeyboardModifier.MetaModifier or e.keyCombination().keyboardModifiers() == QtCore.Qt.KeyboardModifier.ControlModifier) and e.key() == QtCore.Qt.Key.Key_V:
# print("ctrl + v, cmd + v is not allowed")
return
# Cmd, ctrl, alt, shift + up, right, left, down selection not allowed
# print(str(e.keyCombination().keyboardModifiers()))
if str(e.keyCombination().keyboardModifiers()) in ["KeyboardModifier.KeypadModifier|ShiftModifier", "KeyboardModifier.AltModifier", "KeyboardModifier.KeypadModifier|ControlModifier|ShiftModifier", "KeyboardModifier.KeypadModifier|MetaModifier|ShiftModifier","KeyboardModifier.KeypadModifier|AltModifier|ShiftModifier", "KeyboardModifier.KeypadModifier|ControlModifier"]: return
# Editable only hex area. indices => [9, 10, 13, 16, 19, 22, 25, 28, 31, 34, 37, 40, 43, 46, 49, 52, 55, 58, 59]
indices = [i for i, x in enumerate(tc.block().text()) if x == " "]
if (len(indices) > 0) is False:
return
if tcx in range(indices[1]) or tcx in range(indices[1] + 3, indices[len(indices) - 2] + 3, 3):
return
super(HexViewerClass, self).keyPressEvent(e)
def mousePressEvent(self, e: QtGui.QMouseEvent) -> None:
super(HexViewerClass, self).mousePressEvent(e)
pos = e.pos()
tc = self.cursorForPosition(pos)
tcx = tc.positionInBlock()
line = tc.block().text()
# print(tc.block().text())
# print("mousepress pos: ", tcx, tcy)
indices = [i for i, x in enumerate(line) if x == " "]
# Memory pattern search 한 결과창에서 마우스 클릭한 경우
if len(indices) == 0:
if e.buttons() == QtCore.Qt.MouseButton.XButton1 or e.buttons() == QtCore.Qt.MouseButton.XButton2: return
for i in range(2): self.moveCursor(QTextCursor.MoveOperation.Up)
self.moveCursor(QTextCursor.MoveOperation.NextWord)
return
# elif line.find(', module:') != -1:
elif re.search(r"\d+\. 0x[a-f0-9]+, module:", line):
if e.buttons() == QtCore.Qt.MouseButton.XButton1 or e.buttons() == QtCore.Qt.MouseButton.XButton2: return
self.moveCursor(QTextCursor.MoveOperation.Down)
self.moveCursor(QTextCursor.MoveOperation.StartOfBlock)
self.moveCursor(QTextCursor.MoveOperation.NextWord)
return
if e.buttons() == QtCore.Qt.MouseButton.XButton1:
self.move_signal.emit(0)
elif e.buttons() == QtCore.Qt.MouseButton.XButton2:
self.move_signal.emit(1)
# Select a word with a single click
if gvar.is_hex_edit_mode is False and e.buttons() == QtCore.Qt.MouseButton.LeftButton:
cursor = self.cursorForPosition(e.pos())
cursor.select(QTextCursor.SelectionType.WordUnderCursor)
self.setTextCursor(cursor)
# Mouse left click on non hex editable region at normal hexviewer
elif gvar.is_hex_edit_mode is True and e.buttons() == QtCore.Qt.MouseButton.LeftButton and len(indices) > 0:
# ADDRESS region
if tcx in range(indices[1] + 1):
self.moveCursor(QTextCursor.MoveOperation.NextWord)
return
# ASCII String Region
if tcx in range(len(line) - 16, len(line) + 1):
self.moveCursor(QTextCursor.MoveOperation.StartOfLine)
for i in range(16):
self.moveCursor(QTextCursor.MoveOperation.NextWord)
return
# if (tcx - 9) % 3 == 0 or (tcx - 9) % 3 == 1:
if tcx in indices or (tcx + 1) in indices:
self.moveCursor(QTextCursor.MoveOperation.PreviousWord)
return
def contextMenuEvent(self, e: QtGui.QContextMenuEvent) -> None:
# In the hexedit mode, don't create a context menu on right click
if not self.isReadOnly():
return
tc = self.cursorForPosition(e.pos())
pos = tc.position()
tcx = tc.positionInBlock()
tcy = tc.anchor()
block_text = tc.block().text()
menu = super(HexViewerClass, self).createStandardContextMenu() # Get the default context menu
select_all_action = next((action for action in menu.actions() if "Select All" in action.text()), None)
if select_all_action:
# Check if the selected text matches the hex_regex
hex_regex_pattern = r'(\b0x[a-fA-F0-9]+\b|\b[a-fA-F0-9]{6,}\b)'
hex_regex = re.compile(hex_regex_pattern)
match = hex_regex.match(self.textCursor().selectedText())
is_selected = bool(self.textCursor().selectedText())
def create_action(text, enabled, func):
action = QAction(text, self)
action.setEnabled(enabled)
action.triggered.connect(func)
return action
# Create and insert the actions
copy_hex_action = None
disassemble_action = None
if match is None or len(list(re.finditer(hex_regex_pattern, self.textCursor().selectedText(), re.IGNORECASE))) > 1:
copy_hex_action = create_action("Copy Hex", is_selected, self.copy_hex)
disassemble_action = create_action("Hex to Arm", is_selected, self.request_armconverter)
hex_code_read_action = None
copy_pointer_action = None
if gvar.frida_instrument is None:
self.statusBar.showMessage(f"\tAttach first", 3000)
return
addr_match = hex_regex.match(tc.block().text())
if addr_match is not None:
addr_length = len(addr_match[0])
hex_start = addr_length + 2
cursor_len_4bytes = 12 # '00 00 00 00 '
cursor_len_8bytes = 2 * 12
make_hex_code_read_action = False
make_copy_pointer_action = False
if (tcx in [hex_start, hex_start + 1, hex_start + 2] or
tcx in [hex_start + cursor_len_8bytes, hex_start + cursor_len_8bytes + 1, hex_start + cursor_len_8bytes + 2]):
if gvar.arch == "arm64":
make_copy_pointer_action = True
if (tcx in [hex_start, hex_start + 1, hex_start + 2] or
tcx in [hex_start + cursor_len_4bytes, hex_start + cursor_len_4bytes + 1, hex_start + cursor_len_4bytes + 2] or
tcx in [hex_start + cursor_len_8bytes, hex_start + cursor_len_8bytes + 1, hex_start + cursor_len_8bytes + 2] or
tcx in [hex_start + 3 * cursor_len_4bytes, hex_start + 3 * cursor_len_4bytes + 1, hex_start + 3 * cursor_len_4bytes + 2]):
make_hex_code_read_action = True
if gvar.arch == "arm":
make_copy_pointer_action = True
if make_hex_code_read_action:
hex_code_read_action = create_action("Read", match is None,
lambda : self.hex_code_read(tc, pos, tcx, tcy, block_text, hex_start))
if make_copy_pointer_action:
copy_pointer_action = create_action("Copy Pointer", match is None,
lambda: self.copy_pointer(tc, pos, tcx, tcy, block_text, hex_start))
if tcx < hex_start:
watch_action = create_action("Set Watch Func", True,
lambda: self.set_watch_on_addr("watch_func", addr_match[0], ""))
watch_regs_action = create_action("Set Watch Regs", True,
lambda: self.set_watch_on_addr("watch_regs", addr_match[0], ""))
mem_patch_action = create_action("Memory patch", True, lambda: self.mem_patch(addr_match[0]))
set_watchpoint_action = create_action("Set watchpoint", True,
lambda: self.set_watchpoint(addr_match[0]))
add_to_history_action = create_action("Add to history", True,
lambda: self.add_to_history(addr_match[0]))
menu.insertAction(select_all_action, watch_action)
menu.insertAction(select_all_action, watch_regs_action)
menu.insertAction(select_all_action, mem_patch_action)
menu.insertAction(select_all_action, set_watchpoint_action)
menu.insertAction(select_all_action, add_to_history_action)
if copy_hex_action is not None:
menu.insertAction(select_all_action, copy_hex_action)
if disassemble_action is not None:
menu.insertAction(select_all_action, disassemble_action)
if hex_code_read_action is not None:
menu.insertAction(select_all_action, hex_code_read_action)
if copy_pointer_action is not None:
menu.insertAction(select_all_action, copy_pointer_action)
menu.exec(e.globalPos())
def text_changed_event(self):
tc = self.textCursor()
tcx = tc.positionInBlock()
line = tc.block().text()
# print("[hackcatml] text changed: " + tc.block().text())
# Update hex code read when the text change event happens by mem refresh worker
if self.hex_code_read_widget is not None and self.hex_code_read_widget.isVisible() and \
gvar.is_hex_edit_mode is False:
target_addr = int(self.hex_code_read_widget.windowTitle(), 16)
current_block_text_addr = int(line[:line.find(" ")], 16)
hex_code = None
# print(f"[hex_viewer] target_addr: {target_addr}, current_block_text_addr: {current_block_text_addr}")
if target_addr >= current_block_text_addr:
# Strip the "0x" prefix
hex_digits = hex(target_addr - current_block_text_addr)[2:]
# Separate the last digit and the preceding digits (if any)
if len(hex_digits) == 1:
result = [0, int(hex_digits, 16)]
else:
# Split into the preceding part and the last digit
result = [int(hex_digits[:-1], 16), int(hex_digits[-1], 16)]
y, x = result
for i in range(y):
tc.movePosition(QTextCursor.MoveOperation.Down, QTextCursor.MoveMode.MoveAnchor)
hex_code_list = tc.block().text()[self.hex_code_read_hex_start + x * 3:].split(' ')
hex_code_list_length = len(hex_code_list)
# print(f"[hex_viewer] hex_code_list: {hex_code_list}")
if hex_code_list_length - 8 > 0:
hex_code_list = hex_code_list[:-(hex_code_list_length - 8)]
hex_code = " ".join(hex_code_list)
# print(f"[hex_viewer] hex_code_list_length: {hex_code_list_length}")
if hex_code_list_length - 6 == 0:
hex_code_list = hex_code_list[:-2]
hex_code = " ".join(hex_code_list)
# print(f"[hex_viewer] hex_code: {hex_code}")
if hex_code is not None:
self.hex_code_read_widget.hex_code = hex_code
self.hex_code_read_widget.set_label()
self.hex_code_read_widget.show()
# if tc.block().text() == "", index out of error occurs
if line == "":
return
# check if it's the mem scan result view
if self.toPlainText() is not None and re.search(r"\d+\. 0x[0-9a-f]+, module:", self.toPlainText()):
is_mem_scan_result_view = True
else:
is_mem_scan_result_view = False
# If changed text is not hex, then refresh the hex viewer
# print(f"[hex_viewer] text: {line[len(line) - 66:len(line) - 16]}")
if re.search(r"[^0-9a-f\s]+", line[len(line) - 66:len(line) - 16]) and not re.search(r"\d+\. 0x[0-9a-f]+, module:", line):
if is_mem_scan_result_view:
self.setText(gvar.current_mem_scan_hex_view_result)
else:
self.refresh_signal.emit(1) if gvar.is_frida_attached else None
return
indices = [i for i, x in enumerate(line) if x == " "]
try:
hex_start = indices[1] + 1
except Exception as e:
print(f"[hex_viewer] {inspect.currentframe().f_code.co_name}: {e}")
self.clear()
return
# print("[hackcatml] (tcx - hex_start) // 3 = ", (tcx - hex_start) // 3)
if (tcx - hex_start) // 3 < 0 or (tcx - hex_start) // 3 > 15:
return
addr = hex(int(line[:line.find(" ")], 16) + (tcx - hex_start) // 3)
# print("[hackcatml] text changed addr: ", addr)
changed = line[3 * ((tcx - hex_start) // 3) + hex_start: 3 * ((tcx - hex_start) // 3) + hex_start + 2]
changed = "".join(("0x", changed))
# print("[hackcatml] changed hex: ", changed)
pos = tc.position()
try:
orig = gvar.frida_instrument.read_mem_addr(addr, 1)
index = orig.find("\n")
index = index + orig[index:].find(' ') + 2
orig = orig[index: index + 2]
orig = "".join(("0x", orig))
if changed == orig or len(changed.replace('0x', '').strip()) == 1 or re.search(r"(?![0-9a-fA-F]).",
changed.replace('0x', '')):
return
except Exception as e:
if str(e) == gvar.ERROR_SCRIPT_DESTROYED:
gvar.frida_instrument.sessions.clear()
return
prot = '---'
for i in range(len(gvar.enumerate_ranges)):
if int(gvar.enumerate_ranges[i][0], 16) <= int(addr, 16) <= int(gvar.enumerate_ranges[i][1], 16):
prot = gvar.enumerate_ranges[i][2]
for i in range(len(gvar.hex_edited)):
if addr in gvar.hex_edited[i]:
gvar.hex_edited[i][1] = changed
gvar.hex_edited[i][2] = orig
gvar.hex_edited[i][3] = prot
gvar.hex_edited[i][4] = pos
return
gvar.hex_edited.append([addr, changed, orig, prot, pos])
# print(f"[hex_viewer] text changed pos: {tcx}")
def selected_text(self, request_to_armconverter: bool) -> str:
selected_text = self.textCursor().selectedText() # gets the currently selected text
selected_text = selected_text.replace('\u2029', '\n')
lines = selected_text.strip().split('\n')
if len(lines) <= 2:
hex_data = []
for line in lines:
matches = re.findall(r'\b[0-9a-fA-F]{2}\b', line)
hex_data.append(' '.join(matches))
if request_to_armconverter is False:
hex_string = '\n'.join(hex_data)
else:
hex_string = ''.join(hex_data)
return hex_string
elif len(lines) > 2:
# Determine the length of the second line
second_line_length = len(lines[1])
# If the first line is shorter, pad it with spaces at the beginning
if len(lines[0]) < second_line_length:
difference = second_line_length - len(lines[0])
lines[0] = ' ' * difference + lines[0]
# If the last line is shorter, pad it with spaces at the end
if len(lines[-1]) < second_line_length:
difference = second_line_length - len(lines[-1])
lines[-1] += ' ' * difference
hex_data = []
for line in lines:
# Calculate hex start and end positions
hex_start = len(line) - 65
hex_end = len(line) - 16
# Extract hex part
hex_part = line[hex_start:hex_end]
# Extract two-digit hex numbers from the part
matches = re.findall(r'\b[0-9a-fA-F]{2}\b', hex_part)
hex_data.append(' '.join(matches))
# Join hex data into a single string
if request_to_armconverter is False:
hex_string = '\n'.join(hex_data)
else:
hex_string = ''.join(hex_data)
return hex_string
def copy_hex(self):
hex_string = self.selected_text(False)
QApplication.clipboard().setText(hex_string) # Copies the hex text to the clipboard
def request_armconverter(self):
import requests
url = 'https://armconverter.com/api/convert'
hex_string = self.selected_text(True)
payload = {"hex": hex_string, "offset": "", "arch": [gvar.arch]}
response = requests.post(url, json=payload)
data = response.json()
if data['asm'][gvar.arch][0] is True:
hex_to_arm_result = data['asm'][gvar.arch][1]
# Show the copied text in a new widget
self.hex_to_arm_widget = HexToArmWidget(hex_to_arm_result)
cursor_pos = QCursor.pos()
# Move the widget to the cursor position
self.hex_to_arm_widget.move(cursor_pos)
self.hex_to_arm_widget.show()
else:
print("Fail to hex to arm convert")
def hex_code_read(self, tc, pos, tcx, tcy, block_text, hex_start):
self.hex_code_read_tc = tc
self.hex_code_read_pos = pos
self.hex_code_read_tcx = tcx
self.hex_code_read_tcy = tcy
self.hex_code_read_block_text = block_text
self.hex_code_read_hex_start = hex_start
addr, hex_code = get_hex_code(tc, pos, tcx, tcy, block_text, hex_start, "hex_code_read")
if hex_code is None:
return
self.hex_code_read_widget = HexCodeReadWidget(hex_code)
self.hex_code_read_widget.setWindowTitle(addr)
self.hex_code_read_widget.set_label()
cursor_pos = QCursor.pos()
self.hex_code_read_widget.move(cursor_pos)
self.hex_code_read_widget.setWindowFlags(Qt.WindowType.WindowStaysOnTopHint)
self.hex_code_read_widget.show()
def copy_pointer(self, tc, pos, tcx, tcy, block_text, hex_start):
addr, hex_code = get_hex_code(tc, pos, tcx, tcy, block_text, hex_start, "copy_pointer")
pointer = hex(int(''.join(reversed(hex_code.split(' '))), 16))
QApplication.clipboard().setText(pointer)
def set_watch_on_addr(self, action_type, addr, caller):
if addr is not None:
if (prefix := '0x') not in addr:
addr = ''.join((prefix, addr))
self.watch_on_addr_widget.addr_to_watch = addr
else:
tc = self.textCursor()
indices = [i for i, x in enumerate(tc.block().text()) if x == " "]
self.watch_on_addr_widget.addr_to_watch = ''.join(('0x', tc.block().text()[:indices[0]])).strip()
try:
if not self.watch_on_addr_widget.watch_list and not gvar.frida_instrument.receivers(gvar.frida_instrument.message_signal):
# Watch list is empty. set connect once
gvar.frida_instrument.message_signal.connect(self.message_sig_func)
if caller == "history_remove_row_sig_func" or \
not any(watch_item == [self.watch_on_addr_widget.addr_to_watch,
True if action_type == "watch_regs" else False]
for watch_item in self.watch_on_addr_widget.watch_list):
watch_regs = False
minimum_nargs = 1
default_nargs = 3
maximum_nargs = 10
if action_type == "watch_regs":
watch_regs = True
default_nargs = 5
maximum_nargs = 34
self.watch_on_addr_widget.slider.setMinimum(minimum_nargs) # Minimum number of arguments to watch
self.watch_on_addr_widget.slider.setMaximum(maximum_nargs) # Maximum number of arguments to watch
self.watch_on_addr_widget.slider.setValue(default_nargs) # Default number of arguments to watchZ
# print(f"[hex_viewer] set watch on {self.watch_on_addr_widget.addr_to_watch}")
gvar.frida_instrument.set_nargs(default_nargs)
gvar.frida_instrument.set_watch_list(self.watch_on_addr_widget.addr_to_watch, watch_regs)
for watch_item in self.watch_on_addr_widget.watch_list:
if self.watch_on_addr_widget.addr_to_watch == watch_item[0] and watch_regs != watch_item[1]:
watch_item[1] = watch_regs
break
if caller == "history_remove_row_sig_func" or \
not any(watch_item[0] == self.watch_on_addr_widget.addr_to_watch
for watch_item in self.watch_on_addr_widget.watch_list):
gvar.frida_instrument.set_watch(self.watch_on_addr_widget.addr_to_watch)
if caller != "history_remove_row_sig_func":
self.watch_on_addr_widget.watch_list.append(
[self.watch_on_addr_widget.addr_to_watch, watch_regs])
self.watch_list_signal.emit(self.watch_on_addr_widget.watch_list)
except Exception as e:
print(f"[hex_viewer] {inspect.currentframe().f_code.co_name}: {e}")
return
cursor_pos = QCursor.pos()
# Move the widget to the cursor position
self.watch_on_addr_widget.move(cursor_pos)
self.watch_on_addr_widget.setWindowFlags(Qt.WindowType.WindowStaysOnTopHint)
self.watch_on_addr_widget.show()
def mem_patch(self, addr):
if (prefix := '0x') not in addr:
addr = ''.join((prefix, addr))
self.mem_patch_addr_signal.emit(addr)
def set_watchpoint(self, addr):
if (prefix := '0x') not in addr:
addr = ''.join((prefix, addr))
self.set_watchpoint_addr_signal.emit(addr)
def add_to_history(self, addr):
if (prefix := '0x') not in addr:
addr = ''.join((prefix, addr))
self.add_address_to_history_signal.emit(addr)
class HexToArmWidget(QWidget):
def __init__(self, text):
super().__init__()
self.setWindowTitle("HEX to ARM")
self.text_edit = QTextEdit()
self.text_edit.setPlainText(text)
self.text_edit.setReadOnly(True) # Make the text edit read-only
self.layout = QVBoxLayout()
self.layout.addWidget(self.text_edit)
self.setLayout(self.layout)
# Custom TextEdit class for WatchOnAddrWidget
class WatchOnAddrTextEdit(QTextEdit):
def __init__(self, parent=None):
super(WatchOnAddrTextEdit, self).__init__(parent)
self.key = None
self.args_index = None
self.args_value = None
self.addr = None
self.checkedStates = {}
self.hex_dump_widgets = []
self.backtrace_widgets = []
def mousePressEvent(self, event):
super().mousePressEvent(event)
if event.button() == Qt.MouseButton.LeftButton:
cursor = self.cursorForPosition(event.pos())
cursor.select(QTextCursor.SelectionType.WordUnderCursor)
self.setTextCursor(cursor)
def closeEvent(self, e: QtGui.QCloseEvent) -> None:
self.checkedStates.clear()
try:
if gvar.frida_instrument is not None:
gvar.frida_instrument.hexdump_signal.disconnect()
gvar.frida_instrument.backtrace_signal.disconnect()
except Exception as e:
pass
self.hex_dump_widgets.clear()
self.backtrace_widgets.clear()
def get_args_index_and_addr_from_selected_text(self):
# Get the currently selected text
tc = self.textCursor()
selected_text = self.textCursor().selectedText()
if ":" in selected_text:
self.args_index = selected_text[4:selected_text.index(":")]
index = tc.block().text().find(selected_text)
match = re.search(r"0x[a-f0-9]+", tc.block().text()[index:])
if match:
self.args_value = match.group(0)
else:
self.args_index = selected_text[4:]
index = tc.block().text().find(selected_text)
match = re.search(r"0x[a-f0-9]+", tc.block().text()[index:])
if match:
self.args_value = match.group(0)
if selected_text in ('r', 're', 'ret', 'retu', 'retur', 'return'):
self.args_index = ""
while True:
tc.movePosition(QTextCursor.MoveOperation.Up, QTextCursor.MoveMode.MoveAnchor)
if re.search(r"] 0x[a-f0-9]+", tc.block().text()):
self.addr = tc.block().text()[4:].strip()
break
def contextMenuEvent(self, e: QtGui.QContextMenuEvent) -> None:
menu = super(WatchOnAddrTextEdit, self).createStandardContextMenu() # Get the default context menu
select_all_action = None
for action in menu.actions(): # loop over the existing actions
if "Select All" in action.text():
select_all_action = action
break
if select_all_action: # if the "Select All" action was found then insert menus
args_regx = re.compile(r'(\bargs\d+\b|\breturn\b)')
if self.textCursor().selectedText() in ('a', 'ar', 'arg', 'args', 'r', 're', 'ret', 'retu', 'retur'):
self.moveCursor(QTextCursor.MoveOperation.EndOfWord, QTextCursor.MoveMode.KeepAnchor)
self.get_args_index_and_addr_from_selected_text()
match = args_regx.match(self.textCursor().selectedText())
on_leave_check = QCheckBox("OnLeave", self) if self.textCursor().selectedText() != "return" else None
if match is not None:
self.key = (self.addr, self.args_index) # Use a tuple as the key
# If the key is not in the checkedStates dictionary, add it with a default state of unchecked
if self.key not in self.checkedStates:
self.checkedStates[self.key] = Qt.CheckState.Unchecked.value
if on_leave_check is not None:
# Set the checked state based on the checkedStates dictionary
on_leave_check.setCheckState(Qt.CheckState(self.checkedStates[self.key]))
# Connect the checkbox's stateChanged signal to a function
on_leave_check.stateChanged.connect(lambda state: self.on_leave_check_state_changed(state, self.key))
check_action = QWidgetAction(self)
check_action.setDefaultWidget(on_leave_check)
menu.insertAction(select_all_action, check_action)
actions = [
("hexdump", self.hex_dump),
("readPointer", self.read_pointer),
("readUtf8String", self.read_utf8_string),
("readUtf16String", self.read_utf16_string),
("readStdString", self.read_std_string),
("readU8", self.read_u8),
("readU16", self.read_u16),
("readU32", self.read_u32),
("readU64", self.read_u64),
("readFloat", self.read_float),
("readDouble", self.read_double),
("readByteArray", self.read_bytearray),
("reset", self.reset)
]
for text, method in actions:
action = QAction(text, self)
action.setEnabled(True)
action.triggered.connect(method)
menu.insertAction(select_all_action, action)
addr_regex = re.compile(r'^\[\+]\s0x[a-f0-9]+$')
addr_match = addr_regex.match(self.textCursor().block().text())
if addr_match is not None:
action = QAction("Backtrace", self)
action.setEnabled(True)
action.triggered.connect(lambda: self.set_backtrace(addr_match.group(0).split(' ')[1]))
menu.insertAction(select_all_action, action)
menu.exec(e.globalPos())
def on_leave_check_state_changed(self, state, key):
self.checkedStates[key] = state
self.read_args_with_options("")
def hex_dump(self):
self.read_args_with_options("hexdump")
if self.hex_dump_widgets:
for item in self.hex_dump_widgets:
if self.key in item and self.args_value in item and self.checkedStates[self.key] in item:
item[3].show()
return
# Create a new HexDumpWidget and connect to the signal
if self.textCursor().selectedText() == "return":
# self.args_index == "", self.checkedStates == 2 for the return value hexdump
hexdump_widget = HexDumpWidget(self.addr, self.args_index, self.args_value, 2)
hexdump_widget.setWindowTitle(f"HexDump return: {self.args_value}")
else:
hexdump_widget = HexDumpWidget(self.addr, self.args_index, self.args_value, self.checkedStates[self.key])
if self.checkedStates[self.key] == 0:
hexdump_widget.setWindowTitle(f"OnEnter HexDump args{self.args_index}: {self.args_value}")
else:
hexdump_widget.setWindowTitle(f"OnLeave HexDump args{self.args_index}: {self.args_value}")
gvar.frida_instrument.hexdump_signal.connect(hexdump_widget.hexdump_sig_func)
cursor_pos = QCursor.pos()
hexdump_widget.move(cursor_pos)
hexdump_widget.setWindowFlags(Qt.WindowType.WindowStaysOnTopHint)
self.hex_dump_widgets.append([self.key, self.args_value, self.checkedStates[self.key], hexdump_widget])
hexdump_widget.show()
def read_pointer(self):
self.read_args_with_options("readPointer")
def read_utf8_string(self):
self.read_args_with_options("readUtf8String")
def read_utf16_string(self):
self.read_args_with_options("readUtf16String")
def read_std_string(self):
self.read_args_with_options("readStdString")
def read_u8(self):
self.read_args_with_options("readU8")
def read_u16(self):
self.read_args_with_options("readU16")
def read_u32(self):
self.read_args_with_options("readU32")
def read_u64(self):
self.read_args_with_options("readU64")
def read_float(self):
self.read_args_with_options("readFloat")
def read_double(self):
self.read_args_with_options("readDouble")
def read_bytearray(self):
self.read_args_with_options("readByteArray")
def reset(self):
self.read_args_with_options("")
def set_backtrace(self, addr):
addr_to_backtrace = addr
try:
gvar.frida_instrument.set_backtrace(addr_to_backtrace, True)
except Exception as e:
print(e)
return
if self.backtrace_widgets:
for item in self.backtrace_widgets:
if addr_to_backtrace in item:
item[1].show()
return
backtrace_widget = BackTraceWidget(addr_to_backtrace)
backtrace_widget.setWindowTitle(f"Backtrace: {addr_to_backtrace}")
gvar.frida_instrument.backtrace_signal.connect(backtrace_widget.backtrace_sig_func)
cursor_pos = QCursor.pos()
backtrace_widget.move(cursor_pos)
backtrace_widget.setWindowFlags(Qt.WindowType.WindowStaysOnTopHint)
self.backtrace_widgets.append([addr_to_backtrace, backtrace_widget])
backtrace_widget.show()
def read_args_with_options(self, option):
try:
if self.textCursor().selectedText() == "return":
gvar.frida_instrument.set_read_retval_options(self.addr, option)
else:
gvar.frida_instrument.set_read_args_options(self.addr, self.args_index, option,
self.checkedStates[self.key])
except Exception as e:
print(f"[hex_viewer] {inspect.currentframe().f_code.co_name}: {e}")
return
class WatchOnAddrWidget(QWidget):
watch_on_addr_widget_close_event_signal = QtCore.pyqtSignal()
def __init__(self):
super().__init__()
self.setWindowTitle("Watch on Addr")
self.addr_to_watch = ''
self.watch_list = []
self.text_edit = WatchOnAddrTextEdit()
self.text_edit.setReadOnly(True) # Make the text edit read-only
# Create a QSlider
self.slider = QSlider(Qt.Orientation.Horizontal)
# Create a QLabel for the slider value
self.slider_value_label = QLabel()
# Update the nargs, label when the slider value changes
self.slider.valueChanged.connect(self.update_num_args)
self.slider.valueChanged.connect(self.update_slider_value_label)
# Create a QPushButton for clearing the QTextEdit
self.clear_button = QPushButton("Clear")
self.clear_button.clicked.connect(self.text_edit.clear)
# Create a QHBoxLayout
slider_layout = QHBoxLayout()
slider_layout.addWidget(self.slider)
slider_layout.addWidget(self.slider_value_label)
slider_layout.addWidget(self.clear_button)
self.layout = QVBoxLayout()
# Add the QHBoxLayout to the QVBoxLayout
self.layout.addLayout(slider_layout)
self.layout.addWidget(self.text_edit)
self.setLayout(self.layout)
self.resize(550, 350)
def closeEvent(self, e: QtGui.QCloseEvent) -> None:
self.text_edit.clear()
self.text_edit.closeEvent(e)
self.watch_list.clear()
self.watch_on_addr_widget_close_event_signal.emit()
try:
if gvar.frida_instrument is not None:
gvar.frida_instrument.detach_all()
except Exception as e:
print(f"[hex_viewer] {inspect.currentframe().f_code.co_name}: {e}")
if str(e) == gvar.ERROR_SCRIPT_DESTROYED:
gvar.frida_instrument.sessions.clear()
return
super().closeEvent(e)
@pyqtSlot(int)
def update_num_args(self, num_args: int):
try:
gvar.frida_instrument.set_nargs(num_args)
except Exception as e:
print(f"[hex_viewer] {inspect.currentframe().f_code.co_name}: {e}")
return
@pyqtSlot(int)
def update_slider_value_label(self, value):
self.slider_value_label.setText(str(value))
class BackTraceTextEdit(QTextEdit):
def __init__(self, parent=None):
super(BackTraceTextEdit, self).__init__(parent)
def mousePressEvent(self, e: QtGui.QMouseEvent) -> None:
pos = e.pos()
tc = self.cursorForPosition(pos)
text_block = tc.block().text()
addr = text_block.split(' ')[0]
if gvar.hex_viewer_signal_manager is not None:
gvar.hex_viewer_signal_manager.backtrace_text_edit_backtrace_addr_clicked_signal.emit(addr)
class BackTraceWidget(QWidget):
def __init__(self, addr):
super().__init__()
self.addr_to_backtrace = addr
self.text_edit = BackTraceTextEdit()
font = QtGui.QFont("Courier New", 9) if platform.system() == 'Windows' else QtGui.QFont("Courier New", 13)
self.text_edit.setFont(font)
self.text_edit.setReadOnly(True) # Make the text edit read-only
self.layout = QVBoxLayout()
self.layout.addWidget(self.text_edit)
gvar.hex_viewer_signal_manager.close_backtrace_signal.connect(self.close_backtrace_sig_func)
self.setLayout(self.layout)
self.resize(510, 250) if platform.system() == 'Windows' else self.resize(550, 250)
@pyqtSlot(tuple)
def backtrace_sig_func(self, sig: tuple):
addr, backtrace_log = sig
if addr == self.addr_to_backtrace:
self.text_edit.setPlainText(backtrace_log)
@pyqtSlot()
def close_backtrace_sig_func(self):
self.close()
def keyPressEvent(self, event):
if event.key() == Qt.Key.Key_Escape:
self.close()
else:
super().keyPressEvent(event)
def closeEvent(self, e: QtGui.QCloseEvent) -> None:
try:
if gvar.frida_instrument is not None:
gvar.frida_instrument.set_backtrace(self.addr_to_backtrace, False)
except Exception as e:
print(f"[hex_viewer] {inspect.currentframe().f_code.co_name}: {e}")
if str(e) == gvar.ERROR_SCRIPT_DESTROYED:
gvar.frida_instrument.sessions.clear()
return