add: control flow, code signing, build status check. fix: obfuscator
This commit is contained in:
190
obfuscation.py
190
obfuscation.py
@@ -1,54 +1,15 @@
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import os, string, re
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from randomness import *
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"""
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Creates :
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- Random variables (local and globals)
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- Random operations on globals
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- Random function definitions
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- Random function calls
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- Random control flow
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"""
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def GetRandomBool() :
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result = os.urandom(3)
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r= sum(result) < 381.04
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return r #average
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def GetRandomNumber() :
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result = os.urandom(4)
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return int(sum(result))
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def GetRandomRange(a, b):
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if a > b:
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a, b = b, a # Swap a and b if a is greater than b
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range_size = b - a + 1 # Calculate the size of the range
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# Calculate the number of bits required to represent all values in the range
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num_bits = 0
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while 2 ** num_bits < range_size:
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num_bits += 1
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# Generate a random number in binary representation using GetRandomBool()
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random_binary = [GetRandomBool() for _ in range(num_bits)]
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# Convert the binary representation to an integer within the specified range
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random_integer = 0
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for i, bit in enumerate(random_binary):
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random_integer += bit * (2 ** i)
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# Map the generated integer to the desired range [a, b]
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mapped_value = a + random_integer
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if mapped_value > b : return GetRandomRange(a, b)
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return mapped_value
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def GetRandomString(l) :
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letters = string.ascii_lowercase
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s = ""
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while len(s) < l :
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r = GetRandomRange(0, len(letters)-1)
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s += letters[r]
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return s
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types = ["short", "unsigned short", "int", "unsigned int", "long", "unsigned long", "float", "double"]
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operations = ["-", "+", "^", "*", "/"]
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global_vars = {}
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@@ -59,7 +20,7 @@ def GetRandomVar() :
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global global_vars
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global in_func
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vtype = types[GetRandomRange(0, len(types)-1)]
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vname = GetRandomString(10)
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vname = GetRandomString(15)
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t = vtype + " " + vname + " = "
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val = str(GetRandomNumber())
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@@ -95,7 +56,7 @@ def GetRandomOperation() :
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def GetRandomFunction() :
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global functions
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name = GetRandomString(6)
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name = GetRandomString(15)
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functions.append(name)
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body = "int "+name+"(const char* a1) {\n"
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@@ -109,9 +70,50 @@ def CallRandomFunction() :
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if len(functions) < 1 : return ""
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sub = functions[GetRandomRange(0, len(functions)-1)]
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return "int " + GetRandomString(6) + " = " + sub + "(\""+GetRandomString(5)+"\");"
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return "int " + GetRandomString(15) + " = " + sub + "(\""+GetRandomString(10)+"\");"
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def obfuscate(PASS) :
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def GetAsmBlock(branch1, branch2, var, end, sub) :
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asm_block = """\n\t\tcmp eax, """+str(GetRandomNumber())+"""
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jne """+branch1+"""
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jmp """+branch2+"""
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"""+branch1+""":"""
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if GetRandomRange(0, 4) > 1 :
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branch1 = GetRandomString(20)
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branch2_ = GetRandomString(20)
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asm_block += GetAsmBlock(branch1, branch2_, var, end, sub)
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asm_block += "\n\t"+branch2+":\n\t\tmov eax, "+var+"\n\t\tcall "+sub
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return asm_block
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def GetRandomAssemblyBlock() :
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global functions
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if len(functions) < 1 : return ""
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sub = functions[GetRandomRange(0, len(functions)-1)]
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branch1 = GetRandomString(20)
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branch2 = GetRandomString(20)
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end = GetRandomString(20)
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var = GetRandomString(15)
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r = """const char* """+var+""" = \""""+GetRandomString(5)+"""\";\n__asm {"""
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for i in range(GetRandomRange(0, 30)) :
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branch1 = GetRandomString(20)
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branch2 = GetRandomString(20)
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end = GetRandomString(20)
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r += GetAsmBlock(branch1, branch2, var, end, sub)
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r += """\n};"""
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return r
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def obfuscate(PASS, CFLOW_PASS, cflow, junk) :
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if PASS < CFLOW_PASS : PASS = CFLOW_PASS
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if not cflow and not junk : PASS = 0
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global global_vars
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global functions
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global in_func
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@@ -120,24 +122,37 @@ def obfuscate(PASS) :
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f = open("DO_NOT_TOUCH.cpp", "r")
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o = open("main.cpp", "w")
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out = []
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lines = f.readlines()
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for k in range(PASS) :
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in_comment = False
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in_switch = False
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in_asm = False
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in_func_delay = False
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wait_for_func_close = False
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global_vars = {}
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functions = []
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out = []
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idx = 0
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for line in lines :
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idx += 1
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out.append(line)
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if in_func_delay and "}" in line :
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if idx+1 < len(lines)-1 and "//END" in lines[idx+1] or "//END" in line:
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in_func = False
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in_func_delay = False
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elif in_func_delay : continue
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wait_for_func_close = True
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print(f"continue1 {in_func} {line}")
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continue
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if wait_for_func_close and "}" in line :
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in_func = False
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wait_for_func_close = False
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print(f"continue2 {in_func} {line}")
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continue
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if wait_for_func_close :
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print(f"continue3 {in_func} {line}")
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continue
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print(in_func, line)
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if "//START" in line : in_func = True
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if "/*" in line : in_comment = True
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elif "*/" in line : in_comment = False
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@@ -155,10 +170,10 @@ def obfuscate(PASS) :
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if b or a or in_comment or in_switch or in_asm : continue # we can't write
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if GetRandomBool() : # do we create a variable ?
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if GetRandomBool() and junk : # do we create a variable ?
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out.append(GetRandomVar()+"\n")
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if GetRandomBool() and in_func : # do we do an operation on globals ?
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if GetRandomBool() and in_func and junk: # do we do an operation on globals ?
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out.append(GetRandomOperation()+"\n")
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if GetRandomBool() and not in_func : # do we create a function ?
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@@ -166,9 +181,70 @@ def obfuscate(PASS) :
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if GetRandomBool() and in_func : # do we call a function ?
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out.append(CallRandomFunction()+"\n")
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if "//END" in line : in_func_delay = True
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if GetRandomBool() and in_func and cflow and k < CFLOW_PASS : # do we mess up control flow ?
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out.append(GetRandomAssemblyBlock()+"\n")
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lines = out
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fake_api = """#define k_AreFileApisANSI (*(DWORD(WINAPI *)(VOID)) AreFileApisANSI)\r\n
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#define k_AssignProcessToJobObject (*(DWORD(WINAPI *)(DWORD,DWORD)) AssignProcessToJobObject)\r\n
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#define k_CancelWaitableTimer (*(DWORD(WINAPI *)(DWORD)) CancelWaitableTimer)\r\n
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#define k_ClearCommBreak (*(DWORD(WINAPI *)(DWORD)) ClearCommBreak)\r\n
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#define k_ClearCommError (*(DWORD(WINAPI *)(DWORD,DWORD,DWORD)) ClearCommError)\r\n
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#define k_ConvertFiberToThread (*(DWORD(WINAPI *)(VOID)) ConvertFiberToThread)\r\n
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#define k_ConvertThreadToFiber (*(DWORD(WINAPI *)(DWORD)) ConvertThreadToFiber)\r\n
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#define k_CreateFiber (*(DWORD(WINAPI *)(DWORD,DWORD,DWORD)) CreateFiber)\r\n
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#define k_CreateFiberEx (*(DWORD(WINAPI *)(DWORD,DWORD,DWORD,DWORD,DWORD)) CreateFiberEx)\r\n
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#define k_CreateIoCompletionPort (*(DWORD(WINAPI *)(DWORD,DWORD,DWORD,DWORD)) CreateIoCompletionPort)\r\n"""
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static_imports = """DWORD USER3221_Array[] = { (DWORD)GetWindowLongA, (DWORD)wvsprintfA, (DWORD)SetWindowPos, (DWORD)FindWindowA,\r\n
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(DWORD)RedrawWindow, (DWORD)GetWindowTextA, (DWORD)EnableWindow, (DWORD)GetSystemMetrics,\r\n
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(DWORD)IsWindow, (DWORD)CheckRadioButton, (DWORD)UnregisterClassA, (DWORD)SetCursor,\r\n
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(DWORD)GetSysColorBrush, (DWORD)DialogBoxParamA, (DWORD)DestroyAcceleratorTable, (DWORD)DispatchMessageA,\r\n
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(DWORD)TranslateMessage, (DWORD)LoadIconA, (DWORD)EmptyClipboard, (DWORD)SetClipboardData, (DWORD)SetFocus,\r\n
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(DWORD)CharUpperA, (DWORD)OpenClipboard, (DWORD)IsDialogMessageA, (DWORD)TranslateAcceleratorA, (DWORD)GetMessageA,\r\n
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(DWORD)LoadAcceleratorsA, (DWORD)RemoveMenu, (DWORD)InvalidateRect, (DWORD)ChildWindowFromPoint, (DWORD)PostMessageA,\r\n
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(DWORD)DestroyCursor, (DWORD)CreateDialogParamA, (DWORD)GetWindowRect, (DWORD)IsMenu, (DWORD)GetSubMenu, (DWORD)SetDlgItemInt,\r\n
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(DWORD)GetWindowPlacement, (DWORD)CharLowerBuffA, (DWORD)EnableMenuItem, (DWORD)CheckMenuRadioItem, (DWORD)GetSysColor,\r\n
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(DWORD)KillTimer, (DWORD)DestroyIcon, (DWORD)DestroyWindow, (DWORD)PostQuitMessage, (DWORD)GetClientRect, (DWORD)MoveWindow,\r\n
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(DWORD)GetSystemMenu, (DWORD)SetTimer, (DWORD)SetWindowPlacement, (DWORD)InsertMenuItemA, (DWORD)GetMenu, (DWORD)CheckMenuItem,\r\n
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(DWORD)SetMenuItemInfoA, (DWORD)SetActiveWindow, (DWORD)DefDlgProcA, (DWORD)RegisterClassA, (DWORD)EndDialog, (DWORD)SetDlgItemTextA,\r\n
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(DWORD)EnumClipboardFormats, (DWORD)GetClipboardData, (DWORD)CloseClipboard, (DWORD)GetClassInfoA, (DWORD)CallWindowProcA,\r\n
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(DWORD)SetWindowLongA, (DWORD)IsDlgButtonChecked, (DWORD)SetWindowTextA, (DWORD)CheckDlgButton, (DWORD)GetActiveWindow, (DWORD)LoadCursorA,\r\n
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(DWORD)MessageBoxA, (DWORD)wsprintfA, (DWORD)GetDlgItemTextA, (DWORD)SendMessageA, (DWORD)GetCursorPos, (DWORD)TrackPopupMenu,\r\n
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(DWORD)ClientToScreen, (DWORD)DestroyMenu, (DWORD)CreatePopupMenu, (DWORD)AppendMenuA, (DWORD)SendDlgItemMessageA, (DWORD)GetDlgItem };\r\n
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\r\n
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DWORD GDI32121_Array[] = { (DWORD)GetObjectA, (DWORD)GetStockObject, (DWORD)DeleteObject, (DWORD)SetBkMode, (DWORD)SetTextColor, (DWORD)CreateFontIndirectA, (DWORD)SelectObject };\r\n
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\r\n
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DWORD comdlg3218_Array[] = { (DWORD)GetOpenFileNameA, (DWORD)GetSaveFileNameA };\r\n
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\r\n
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DWORD ADVAPI32214_Array[] = { (DWORD)RegCreateKeyA, (DWORD)RegSetValueA, (DWORD)GetUserNameA, (DWORD)RegCloseKey,\r\n
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(DWORD)RegOpenKeyExA, (DWORD)AdjustTokenPrivileges, (DWORD)LookupPrivilegeValueA, (DWORD)OpenProcessToken, (DWORD)RegQueryValueExA, (DWORD)RegDeleteKeyA };\r\n
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\r\n"""
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fake_libs = """#pragma comment(lib,\"user32.lib\")\r\n
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#pragma comment(lib,\"Comdlg32.lib\")\r\n
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#pragma comment(lib,\"UrlMon.lib\")\r\n
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#pragma comment(lib,\"Shell32.lib\")\r\n
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#pragma comment(lib,\"oledlg.lib\")\r\n
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#pragma comment(lib,\"Ole32.lib\")\r\n
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#pragma comment(lib,\"AdvApi32.lib\")\r\n
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#pragma comment(lib,\"WinInet.lib\")\r\n
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#pragma comment(lib,\"Gdi32.lib\")\r\n
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#pragma comment(lib,\"WS2_32.lib\")\r\n
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#pragma comment(lib,\"opengl32.lib\")\r\n"""
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fake_includes = """#include <intrin.h>\r\n
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#include <Objbase.h>\r\n
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#include <Callobj.h>\r\n
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#include <Shellapi.h>\r\n
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#include <Urlmon.h>\r\n
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#include <Prsht.h>\r\n
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#include <Userenv.h>\r\n"""
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out.insert(0, fake_api)
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out.insert(0, static_imports)
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out.insert(0, fake_libs)
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out.insert(0, fake_includes)
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o.writelines(out)
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