mirror of
https://github.com/naksyn/PythonMemoryModule
synced 2026-06-06 16:24:25 +00:00
command line support (partial) via PEB stomping
This update include support to passing command line parameters to unmanaged exe via PEB stomping. This technique is not working with every executable since it depends on which functions are used to pass arguments. Generally, to get a universally working technique would be required to hook GetCommandlineA GetCommandlineW __getmainargs and __wgetmainargs since PEB stomping won't cover all cases, more details here: https://blog-30cm-tw.translate.goog/2020/08/windows-c-mainargc-argv.html?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=it&_x_tr_pto=wapp However, during my testing I found that mimikatz and several go binaries are working just by doing PEB stomping. On the other hand, cmdline passing via PEB stomping alone to mingw and VS compiled binaries won't likely work.
This commit is contained in:
naksyn
@@ -0,0 +1,280 @@
|
||||
import windows
|
||||
|
||||
import windows.native_exec.simple_x64 as x64
|
||||
import windows.native_exec.simple_x86 as x86
|
||||
from windows.generated_def.winstructs import *
|
||||
|
||||
|
||||
StrlenW64 = x64.MultipleInstr()
|
||||
StrlenW64 += x64.Label(":FUNC_STRLENW64")
|
||||
StrlenW64 += x64.Push("RCX")
|
||||
StrlenW64 += x64.Push("RDI")
|
||||
StrlenW64 += x64.Mov("RDI", "RCX")
|
||||
StrlenW64 += x64.Xor("RAX", "RAX")
|
||||
StrlenW64 += x64.Xor("RCX", "RCX")
|
||||
StrlenW64 += x64.Dec("RCX")
|
||||
StrlenW64 += x64.Repne + x64.ScasW()
|
||||
StrlenW64 += x64.Not("RCX")
|
||||
StrlenW64 += x64.Dec("RCX")
|
||||
StrlenW64 += x64.Mov("RAX", "RCX")
|
||||
StrlenW64 += x64.Pop("RDI")
|
||||
StrlenW64 += x64.Pop("RCX")
|
||||
StrlenW64 += x64.Ret()
|
||||
|
||||
|
||||
StrlenA64 = x64.MultipleInstr()
|
||||
StrlenA64 += x64.Label(":FUNC_STRLENA64")
|
||||
StrlenA64 += x64.Push("RCX")
|
||||
StrlenA64 += x64.Push("RDI")
|
||||
StrlenA64 += x64.Mov("RDI", "RCX")
|
||||
StrlenA64 += x64.Xor("RAX", "RAX")
|
||||
StrlenA64 += x64.Xor("RCX", "RCX")
|
||||
StrlenA64 += x64.Dec("RCX")
|
||||
StrlenA64 += x64.Repne + x64.ScasB()
|
||||
StrlenA64 += x64.Not("RCX")
|
||||
StrlenA64 += x64.Dec("RCX")
|
||||
StrlenA64 += x64.Mov("RAX", "RCX")
|
||||
StrlenA64 += x64.Pop("RDI")
|
||||
StrlenA64 += x64.Pop("RCX")
|
||||
StrlenA64 += x64.Ret()
|
||||
|
||||
|
||||
GetProcAddress64 = x64.MultipleInstr()
|
||||
GetProcAddress64 += x64.Label(":FUNC_GETPROCADDRESS64")
|
||||
GetProcAddress64 += x64.Push("RBX")
|
||||
GetProcAddress64 += x64.Push("RCX")
|
||||
GetProcAddress64 += x64.Push("RDX")
|
||||
GetProcAddress64 += x64.Push("RSI")
|
||||
GetProcAddress64 += x64.Push("RDI")
|
||||
GetProcAddress64 += x64.Push("R8")
|
||||
GetProcAddress64 += x64.Push("R9")
|
||||
GetProcAddress64 += x64.Push("R10")
|
||||
GetProcAddress64 += x64.Push("R11")
|
||||
GetProcAddress64 += x64.Push("R12")
|
||||
GetProcAddress64 += x64.Push("R13")
|
||||
# Params : RCX -> libname
|
||||
# Params : RDX -> API Name
|
||||
GetProcAddress64 += x64.Mov("R11", "RCX")
|
||||
GetProcAddress64 += x64.Mov("R12", "RDX")
|
||||
GetProcAddress64 += x64.Mov("RAX", x64.mem("GS:[0x60]")) #PEB !
|
||||
GetProcAddress64 += x64.Mov("RAX", x64.mem("[RAX + 24] ")) # ; RAX = ldr (+ 6 for 64 cause of 2 ptr)
|
||||
GetProcAddress64 += x64.Mov("RAX", x64.mem("[RAX + 32]")) # ; RAX on the first elt of the list (first module)
|
||||
GetProcAddress64 += x64.Mov("RDX", "RAX")
|
||||
GetProcAddress64 += x64.Label(":a_dest")
|
||||
GetProcAddress64 += x64.Mov("RAX", "RDX")
|
||||
GetProcAddress64 += x64.Mov("RBX", x64.mem("[RAX + 32]")) # RBX : first base ! (base of current module)
|
||||
#GetProcAddress64 += x64.Mov("RBX ", x64.mem("[RAX + 32]")) # RBX : first base ! (base of current module)
|
||||
GetProcAddress64 += x64.Cmp("RBX", 0)
|
||||
GetProcAddress64 += x64.Jz(":DLL_NOT_FOUND")
|
||||
GetProcAddress64 += x64.Mov("RCX", x64.mem("[RAX + 80]")) # RCX = NAME (UNICODE_STRING.Buffer)
|
||||
GetProcAddress64 += x64.Call(":FUNC_STRLENW64")
|
||||
GetProcAddress64 += x64.Mov("RDI", "RCX")
|
||||
GetProcAddress64 += x64.Mov("RCX", "RAX")
|
||||
GetProcAddress64 += x64.Mov("RSI", "R11")
|
||||
GetProcAddress64 += x64.Rep + x64.CmpsW() #;cmp with current dll name (unicode)
|
||||
GetProcAddress64 += x64.Test("RCX", "RCX")
|
||||
GetProcAddress64 += x64.Jz(":DLL_FOUND")
|
||||
GetProcAddress64 += x64.Mov("RDX", x64.mem("[RDX]"))
|
||||
GetProcAddress64 += x64.Jmp(":a_dest")
|
||||
GetProcAddress64 += x64.Label(":DLL_FOUND") # here rbx = base
|
||||
GetProcAddress64 += x64.Mov("EAX", x64.mem("[RBX + 60]")) # rax = PEBASE RVA
|
||||
GetProcAddress64 += x64.Add("RAX", "RBX") # RAX = PEBASE
|
||||
GetProcAddress64 += x64.Add("RAX", 24) # ;OPTIONAL HEADER
|
||||
GetProcAddress64 += x64.Mov("ECX", x64.mem("[rax + 112]")) # ;rcx = RVA export dir
|
||||
GetProcAddress64 += x64.Add("RCX", "RBX") # ;rcx = export_dir
|
||||
GetProcAddress64 += x64.Mov("RAX", "RCX") # ;RAX = export_dir
|
||||
GetProcAddress64 += x64.Push("RAX") # ;Save it for after function search
|
||||
# ; EBX = BASE | EAX = EXPORT DIR
|
||||
GetProcAddress64 += x64.Mov("ECX", x64.mem("[RAX + 24] "))
|
||||
GetProcAddress64 += x64.Mov("R13", "RCX") # ;r13 = NB names
|
||||
GetProcAddress64 += x64.Mov("EDX", x64.mem("[RAX + 32] ")) # EDX = names array RVA
|
||||
GetProcAddress64 += x64.Add("RDX", "RBX") # RDX = names array
|
||||
GetProcAddress64 += x64.Xor("RCX", "RCX")
|
||||
GetProcAddress64 += x64.Label(":SEARCH_LOOP")
|
||||
GetProcAddress64 += x64.Cmp("RCX", "R13")
|
||||
GetProcAddress64 += x64.Jz(":API_NOT_FOUND")
|
||||
GetProcAddress64 += x64.Mov("ESI", x64.mem("[RDX + RCX * 4]")) # ;Get function name RVA
|
||||
GetProcAddress64 += x64.Add("RSI", "RBX") # ;Get name addr
|
||||
GetProcAddress64 += x64.Push("RCX") # ;Save current index (could use x64 register)
|
||||
GetProcAddress64 += x64.Mov("RCX", "R12")
|
||||
GetProcAddress64 += x64.Call(":FUNC_STRLENA64") # TODO: mov outside the loop :D
|
||||
GetProcAddress64 += x64.Mov("RCX", "RAX")
|
||||
GetProcAddress64 += x64.Mov("RDI", "R12")
|
||||
GetProcAddress64 += x64.Inc("RCX")
|
||||
GetProcAddress64 += x64.Rep + x64.CmpsB()
|
||||
GetProcAddress64 += x64.Mov("EAX", "ECX")
|
||||
GetProcAddress64 += x64.Pop("RCX")
|
||||
GetProcAddress64 += x64.Inc("RCX")
|
||||
GetProcAddress64 += x64.Test("RAX", "RAX")
|
||||
GetProcAddress64 += x64.Jnz(":SEARCH_LOOP")
|
||||
# Func FOUND !
|
||||
GetProcAddress64 += x64.Dec("RCX")
|
||||
GetProcAddress64 += x64.Pop("RAX") # ;Restore export_dir addr
|
||||
GetProcAddress64 += x64.Mov("EDX", x64.mem("[RAX + 36]")) # ;EDX = AddressOfNameOrdinals RVX
|
||||
GetProcAddress64 += x64.Add("RDX", "RBX")
|
||||
GetProcAddress64 += x64.OperandSizeOverride + x64.Mov("ECX", x64.mem("[rdx + rcx * 2]")) # ; ecx = Ieme ordinal (short array)
|
||||
GetProcAddress64 += x64.And('RCX', 0xffff)
|
||||
GetProcAddress64 += x64.Mov("EDX", x64.mem("[RAX + 28]")) # ; AddressOfFunctions RVA
|
||||
GetProcAddress64 += x64.Add("RDX", "RBX")
|
||||
GetProcAddress64 += x64.Mov("EDX", x64.mem("[RDX + RCX * 4]"))
|
||||
GetProcAddress64 += x64.Add("RDX", "RBX")
|
||||
GetProcAddress64 += x64.Mov("RAX", "RDX")
|
||||
GetProcAddress64 += x64.Label(":RETURN")
|
||||
GetProcAddress64 += x64.Pop("R13")
|
||||
GetProcAddress64 += x64.Pop("R12")
|
||||
GetProcAddress64 += x64.Pop("R11")
|
||||
GetProcAddress64 += x64.Pop("R10")
|
||||
GetProcAddress64 += x64.Pop("R9")
|
||||
GetProcAddress64 += x64.Pop("R8")
|
||||
GetProcAddress64 += x64.Pop("RDI")
|
||||
GetProcAddress64 += x64.Pop("RSI")
|
||||
GetProcAddress64 += x64.Pop("RDX")
|
||||
GetProcAddress64 += x64.Pop("RCX")
|
||||
GetProcAddress64 += x64.Pop("RBX")
|
||||
GetProcAddress64 += x64.Ret()
|
||||
GetProcAddress64 += x64.Label(":DLL_NOT_FOUND")
|
||||
GetProcAddress64 += x64.Mov("RAX", 0xfffffffffffffffe)
|
||||
GetProcAddress64 += x64.Jmp(":RETURN")
|
||||
GetProcAddress64 += x64.Label(":API_NOT_FOUND")
|
||||
GetProcAddress64 += x64.Pop("RAX")
|
||||
GetProcAddress64 += x64.Mov("RAX", 0xffffffffffffffff)
|
||||
GetProcAddress64 += x64.Jmp(":RETURN")
|
||||
# Ajout des dependances
|
||||
GetProcAddress64 += StrlenW64
|
||||
GetProcAddress64 += StrlenA64
|
||||
|
||||
|
||||
|
||||
###### 32 bits #######
|
||||
|
||||
|
||||
StrlenW32 = x86.MultipleInstr()
|
||||
StrlenW32 += x86.Label(":FUNC_STRLENW32")
|
||||
StrlenW32 += x86.Push("EDI")
|
||||
StrlenW32 += x86.Mov("EDI", x86.mem("[ESP + 8]"))
|
||||
StrlenW32 += x86.Push("ECX")
|
||||
StrlenW32 += x86.Xor("EAX", "EAX")
|
||||
StrlenW32 += x86.Xor("ECX", "ECX")
|
||||
StrlenW32 += x86.Dec("ECX")
|
||||
StrlenW32 += x86.Repne + x86.ScasW()
|
||||
StrlenW32 += x86.Not("ECX")
|
||||
StrlenW32 += x86.Dec("ECX")
|
||||
StrlenW32 += x86.Mov("EAX", "ECX")
|
||||
StrlenW32 += x86.Pop("ECX")
|
||||
StrlenW32 += x86.Pop("EDI")
|
||||
StrlenW32 += x86.Ret()
|
||||
|
||||
|
||||
StrlenA32 = x86.MultipleInstr()
|
||||
StrlenA32 += x86.Label(":FUNC_STRLENA32")
|
||||
StrlenA32 += x86.Push("EDI")
|
||||
StrlenA32 += x86.Mov("EDI", x86.mem("[ESP + 8]"))
|
||||
StrlenA32 += x86.Push("ECX")
|
||||
StrlenA32 += x86.Xor("EAX", "EAX")
|
||||
StrlenA32 += x86.Xor("ECX", "ECX")
|
||||
StrlenA32 += x86.Dec("ECX")
|
||||
StrlenA32 += x86.Repne + x86.ScasB()
|
||||
StrlenA32 += x86.Not("ECX")
|
||||
StrlenA32 += x86.Dec("ECX")
|
||||
StrlenA32 += x86.Mov("EAX", "ECX")
|
||||
StrlenA32 += x86.Pop("ECX")
|
||||
StrlenA32 += x86.Pop("EDI")
|
||||
StrlenA32 += x86.Ret()
|
||||
|
||||
|
||||
GetProcAddress32 = x86.MultipleInstr()
|
||||
GetProcAddress32 += x86.Label(":FUNC_GETPROCADDRESS32")
|
||||
GetProcAddress32 += x86.Push("EBX")
|
||||
GetProcAddress32 += x86.Push("ECX")
|
||||
GetProcAddress32 += x86.Push("EDI")
|
||||
GetProcAddress32 += x86.Push("ESI")
|
||||
GetProcAddress32 += x86.Push("EBP")
|
||||
GetProcAddress32 += x86.Mov("EAX", x86.mem("FS:[0x30]"))
|
||||
GetProcAddress32 += x86.Mov("EAX", x86.mem("[EAX + 0xC]"))
|
||||
GetProcAddress32 += x86.Mov("EAX", x86.mem("[EAX + 0xC]")) # ; RAX on the first elt of the list (first module)
|
||||
GetProcAddress32 += x86.Mov("EDX", "EAX")
|
||||
GetProcAddress32 += x86.Label(":a_dest")
|
||||
GetProcAddress32 += x86.Mov("EAX", "EDX")
|
||||
GetProcAddress32 += x86.Mov("EBX", x86.mem("[EAX + 0x18]")) # EBX : first base ! (base of current module)
|
||||
GetProcAddress32 += x86.Cmp("EBX", 0)
|
||||
GetProcAddress32 += x86.Jz(":DLL_NOT_FOUND")
|
||||
GetProcAddress32 += x86.Mov("ECX", x86.mem("[EAX + 0x30]")) # RCX = NAME (UNICODE_STRING.Buffer)
|
||||
GetProcAddress32 += x86.Push("ECX")
|
||||
GetProcAddress32 += x86.Call(":FUNC_STRLENW32")
|
||||
GetProcAddress32 += x86.Pop("EDI") # Current name
|
||||
GetProcAddress32 += x86.Mov("ECX", "EAX")
|
||||
GetProcAddress32 += x86.Mov("ESI", x86.mem("[ESP + 0x18]"))
|
||||
GetProcAddress32 += x86.Rep + x86.CmpsW()
|
||||
GetProcAddress32 += x86.Test("ECX", "ECX")
|
||||
GetProcAddress32 += x86.Jz(":DLL_FOUND")
|
||||
GetProcAddress32 += x86.Mov("EDX", x86.mem("[EDX]"))
|
||||
GetProcAddress32 += x86.Jmp(":a_dest")
|
||||
GetProcAddress32 += x86.Label(":DLL_FOUND")
|
||||
GetProcAddress32 += x86.Mov("EAX", x86.mem("[EBX + 0x3c]")) # rax = PEBASE RVA
|
||||
GetProcAddress32 += x86.Add("EAX", "EBX") # RAX = PEBASE
|
||||
GetProcAddress32 += x86.Add("EAX", 0x18) # ;OPTIONAL HEADER
|
||||
GetProcAddress32 += x86.Mov("ECX", x86.mem("[EAX + 0x60]")) # ;ecx = RVA export dir
|
||||
GetProcAddress32 += x86.Add("ECX", "EBX") # ;ecx = export_dir
|
||||
GetProcAddress32 += x86.Mov("EAX", "ECX")
|
||||
GetProcAddress32 += x86.Push("EAX") # Save it
|
||||
# ; EBX = BASE | EAX = EXPORT DIR
|
||||
GetProcAddress32 += x86.Mov("ECX", x86.mem("[EAX + 24] "))
|
||||
GetProcAddress32 += x86.Mov("EBP", "ECX") # ;EBP = NB names
|
||||
GetProcAddress32 += x86.Mov("EDX", x86.mem("[EAX + 32] ")) # EDX = names array RVA
|
||||
GetProcAddress32 += x86.Add("EDX", "EBX") # RDX = names array
|
||||
GetProcAddress32 += x86.Xor("ECX", "ECX")
|
||||
GetProcAddress32 += x86.Mov("ESI", x86.mem("[ESP + 0x20]"))
|
||||
GetProcAddress32 += x86.Label(":SEARCH_LOOP")
|
||||
GetProcAddress32 += x86.Cmp("ECX", "EBP")
|
||||
GetProcAddress32 += x86.Jz(":API_NOT_FOUND")
|
||||
GetProcAddress32 += x86.Mov("EDI", x86.mem("[EDX + ECX * 4]")) # ;Get function name RVA
|
||||
GetProcAddress32 += x86.Add("EDI", "EBX") # ;Get name addr
|
||||
GetProcAddress32 += x86.Push("ECX") # Save current index
|
||||
GetProcAddress32 += x86.Push("ESI")
|
||||
GetProcAddress32 += x86.Call(":FUNC_STRLENA32")
|
||||
GetProcAddress32 += x86.Mov("ECX", "EAX")
|
||||
GetProcAddress32 += x86.Push("EDI")
|
||||
GetProcAddress32 += x86.Call(":FUNC_STRLENA32")
|
||||
GetProcAddress32 += x86.Pop("EDI")
|
||||
GetProcAddress32 += x86.Cmp("EAX", "ECX")
|
||||
GetProcAddress32 += x86.Jnz(":ABORT_STRCMP")
|
||||
GetProcAddress32 += x86.Inc("ECX")
|
||||
GetProcAddress32 += x86.Rep + x86.CmpsB()
|
||||
GetProcAddress32 += x86.Label(":ABORT_STRCMP")
|
||||
GetProcAddress32 += x86.Pop("ESI")
|
||||
GetProcAddress32 += x86.Mov("EAX", "ECX")
|
||||
GetProcAddress32 += x86.Pop("ECX")
|
||||
GetProcAddress32 += x86.Inc("ECX")
|
||||
GetProcAddress32 += x86.Test("EAX", "EAX")
|
||||
GetProcAddress32 += x86.Jnz(":SEARCH_LOOP")
|
||||
|
||||
GetProcAddress32 += x86.Dec("ECX")
|
||||
#GetProcAddress32 += x86.Int3() # da poi(edx + (ecx * 4)) + ebx; da esi
|
||||
GetProcAddress32 += x86.Pop("EAX") # ;Restore export_dir addr
|
||||
GetProcAddress32 += x86.Mov("EDX", x86.mem("[EAX + 36]")) # ;EDX = AddressOfNameOrdinals RVX
|
||||
GetProcAddress32 += x86.Add("EDX", "EBX")
|
||||
#GetProcAddress32 += x86.Mov("ECX", x86.mem("[EDX + ECX * 2]"))
|
||||
GetProcAddress32 += x86.OperandSizeOverride + x86.Mov("ECX", x86.mem("[EDX + ECX * 2]"))
|
||||
# ; ecx = Ieme ordinal (short array)
|
||||
GetProcAddress32 += x86.And('ECX', 0xffff)
|
||||
GetProcAddress32 += x86.Mov("EDX", x86.mem("[EAX + 28]")) # ; AddressOfFunctions RVA
|
||||
GetProcAddress32 += x86.Add("EDX", "EBX")
|
||||
GetProcAddress32 += x86.Mov("EDX", x86.mem("[EDX + ECX * 4]"))
|
||||
GetProcAddress32 += x86.Add("EDX", "EBX")
|
||||
GetProcAddress32 += x86.Mov("EAX", "EDX")
|
||||
GetProcAddress32 += x86.Label(":RETURN")
|
||||
GetProcAddress32 += x86.Pop("EBP")
|
||||
GetProcAddress32 += x86.Pop("ESI")
|
||||
GetProcAddress32 += x86.Pop("EDI")
|
||||
GetProcAddress32 += x86.Pop("ECX")
|
||||
GetProcAddress32 += x86.Pop("EBX")
|
||||
GetProcAddress32 += x86.Ret()
|
||||
GetProcAddress32 += x86.Label(":DLL_NOT_FOUND")
|
||||
GetProcAddress32 += x86.Mov("EAX", 0xfffffffe)
|
||||
GetProcAddress32 += x86.Jmp(":RETURN")
|
||||
GetProcAddress32 += x86.Label(":API_NOT_FOUND")
|
||||
GetProcAddress32 += x86.Pop("EAX")
|
||||
GetProcAddress32 += x86.Mov("EAX", 0xffffffff)
|
||||
GetProcAddress32 += x86.Jmp(":RETURN")
|
||||
GetProcAddress32 += StrlenW32
|
||||
GetProcAddress32 += StrlenA32
|
||||
Reference in New Issue
Block a user