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Copy pathpyelfpacker.py
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2117 lines (1573 loc) · 74.8 KB
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#=================================#
# [ OWNER ]
# CREATOR : Vladislav Khudash
# AGE : 17
# LOCATION : Ukraine
#
# [ PINFO ]
# DATE : 17.07.2026
# PROJECT : PY-ELF-PACKER
# PLATFORM : LIN64
#=================================#
import sys
if not sys.platform.startswith('linux'):
raise SystemError(f'OS NOT SUPPORTED ({sys.platform})')
import gc
import os
import mmap
import shutil
import secrets as rand
from subprocess import run as sp_run
from platform import machine
from time import time
mem = memoryview
array = bytearray
_argv = set(sys.argv[1 :])
# Supported feature switches
_ELFLDR_FLAGS = (
'--help',
'--obf',
'--debug',
'--vm'
)
# Parse active flags from CLI arguments
FLAG_HELP : bool = _ELFLDR_FLAGS[0] in _argv
FLAG_OBF : bool = _ELFLDR_FLAGS[1] in _argv
FLAG_DEBUG : bool = _ELFLDR_FLAGS[2] in _argv
FLAG_VM : bool = _ELFLDR_FLAGS[3] in _argv
for f in _ELFLDR_FLAGS: _argv.discard(f)
del f, _ELFLDR_FLAGS
PATH_DIR : bytes = b'./_mk_pyelfpacker-%x' % int(time())
PATH_LINK_LD : bytes = PATH_DIR + b'/link.ld'
PATH_PAYLOAD : bytes = PATH_DIR + b'/payload.bin'
PATH_LOADER_C : bytes = PATH_DIR + b'/loader.c'
PATH_ELFSTRIP : bytes = PATH_DIR + b'/elfstrip'
PATH_OUTPUT : bytes = b'./pyelfpacker-%b'
PATH_LABEL : bytes = b'/*--GENERATED_BY_PYELFPACKER_FOR_FILE(%b)--*/'
CHUNK : int = os.sysconf('SC_PAGE_SIZE')
KSZ : tuple[int] = (16, 32, 64, 128) # (n % 2) == 0
X64 : tuple[mem] = (mem(b'x86_64'), mem(b'x64'), mem(b'amd64'))
FZLIM : int = 4 << 30
MELF : mem = mem(b'\x7FELF\x02')
FBADR : int = 0x400000 # Base download address
FL_RE : int = 5 # Flag R+E for linker
FL_RW : int = 6 # Flag R+W for linker
PST : mem = mem(b'/proc/self/status')
MUSL : bytes = shutil.which(b'musl-gcc') # or None
GCC : bytes = shutil.which(b'gcc') # or None
CC : bytes = MUSL or GCC # or None
PARAM : tuple[bytes] = (
b'-m64',
b'-mtune=generic',
b'-Wl,-z,noseparate-code',
b'-Wl,-z,noexecstack',
b'-nostdlib',
b'-fno-builtin',
b'-ffreestanding',
b'-static-pie',
b'-O3',
b'-Wl,-O3',
b'-flto',
b'-flto-partition=one',
b'-fipa-pta',
b'-fstrict-aliasing',
b'-fomit-frame-pointer',
b'-Wl,--gc-sections',
b'-fdata-sections',
b'-fmerge-all-constants',
b'-ffunction-sections',
b'-fno-keep-static-consts',
b'-fno-keep-inline-functions',
b'-fvisibility=hidden',
b'-fno-semantic-interposition',
b'-fno-plt',
b'-fno-gnu-unique',
b'-fno-common',
b'-fno-stack-check',
b'-fno-stack-protector',
b'-fno-stack-clash-protection',
b'-fno-unwind-tables',
b'-fno-asynchronous-unwind-tables',
b'-Wl,--no-eh-frame-hdr',
b'-Wl,--build-id=none',
b'-fno-ident',
b'-g0',
b'-s',
)
MSG: dict[bytes, bytes] = {
b'prev' : (
b'\nerror: no input files'
b'\nshow more details "--help"\n'
),
b'info' : (
b'\n(C) Vladislav Khudash, 2026'
b'\n(P) GitHub: https://github.com/vk-candpython/pyelfpacker'
b'\n(!) Only for x64 Linux\n\n'
b'\n(Usage): python%d %b <elf1> [elf2 ...]\n\n'
b'\n(Flags):\n'
b' --help -> Show help menu\n'
b' --obf -> Enable polymorphic obfuscation\n'
b' --debug -> Enable anti-debug\n'
b' --vm -> Enable anti-vm\n'
b'\n\n(Features):\n'
b' - RLE compression\n'
b' - XOR stream cipher\n'
b' - Polymorphic stub generation\n'
b' - Fileless execution\n'
b' - Protection & Anti-Debug & Anti-VM\n'
b' - Extreme strip ELF metadata\n'
b' - Polyglot signatures\n'
),
b'valid_arch' : b'[ OK ]: architecture is valid (%b)',
b'fail_arch' : b'[ FAIL ]: target architecture must be (x64) | found: (%b)',
b'use_compiler' : b'[ OK ]: using compiler(%b)',
b'fail_compiler' : b'[ FAIL ]: no suitable compiler found (tried: %b)',
b'use_flag' : b'[ OK ]: using flag(%b)',
b'sproc' : b'[ INFO ]: Start processing -> %s\n',
b'eproc' : b'\n[ INFO ]: End processing -> %s',
b'start' : b'[ INFO ]: building ELF(%b)',
b'out' : b'[ OK ]: outfile(%b, %d bytes)',
b'end' : b'[ OK ]: building completed ELF(%b)',
b'fail_open' : b'[ FAIL ]: cannot open file(%b)',
b'fail_sz' : b'[ FAIL ]: ELF(%b) size is larger limit(%d GiB)',
b'fail_mmap' : b'[ FAIL ]: mmap failed for file(%b)',
b'is_not_elf' : b'[ FAIL ]: file(%b) is not ELF(x64)',
b'ok_dir' : b'[ OK ]: make build dir(%b)',
b'ok_file' : b'[ BUILD ]: file(%b)',
b'ok_cleanup' : b'[ OK ]: cleanup build dir(%b)',
b'fail_cleanup' : b'[ FAIL ]: failed to cleanup build dir(%b)',
b'fail_dir' : b'[ FAIL ]: failed to make dir(./%b)',
b'fail_file' : b'[ FAIL ]: failed to make file(./%b)',
b'bar_compress' : b'[ INFO ]: compressing:',
b'bar_enc' : b'[ INFO ]: encrypting: ',
b'bar_done' : b' (DONE)',
b'compress' : b'[ OK ]: compressed: (%d -> %d) bytes | saved: %d bytes (%.1f%%)',
b'compile' : b'[ OK ]: compiled .................',
b'fail_compile' : b'[ FAIL ]: compilation failed (exit code: %d)',
b'strip_payload' : b'[ OK ]: stripped payload ELF | (%d -> %d) bytes & saved: %d bytes (%.1f%%)',
b'elfstrip' : b'[ OK ]: stripped .................',
b'time' : b'[ INFO ]: time ................. (%.2fs)',
b'error' : b'\n[ ERROR ]: %b(%b)'
}
if FLAG_OBF: SIGN: tuple[mem] = (
mem(b''),
mem(
b'''
o = .;
BYTE(0x6F); BYTE(0x0D); BYTE(0x0D);
BYTE(0x0A);
LONG(1); QUAD(0);
. = ALIGN(16);
c = .;
\n'''
),
mem(
b'''
o = .;
BYTE(0x7F); BYTE(0x45); BYTE(0x4C);
BYTE(0x46); BYTE(0x02); BYTE(0x01);
BYTE(0x01); BYTE(0x00);
QUAD(0);
. = ALIGN(16);
c = .;
\n'''
),
mem(
b'''
o = .;
SHORT(0x5A4D);
. = o + 60;
LONG(0x00000080); LONG(0x00004550);
BYTE(0x0E); BYTE(0x1F); BYTE(0xBA);
BYTE(0x0E); BYTE(0x00); BYTE(0xB4);
BYTE(0x09); BYTE(0xCD); BYTE(0x21);
BYTE(0xB8); BYTE(0x01); BYTE(0x4C);
BYTE(0xCD); BYTE(0x21);
. = ALIGN(8);
BYTE(0x54); BYTE(0x68); BYTE(0x69);
BYTE(0x73); BYTE(0x20); BYTE(0x70);
BYTE(0x72); BYTE(0x6F); BYTE(0x67);
BYTE(0x72); BYTE(0x61); BYTE(0x6D);
BYTE(0x20); BYTE(0x63); BYTE(0x61);
BYTE(0x6E); BYTE(0x6E); BYTE(0x6F);
BYTE(0x74); BYTE(0x20); BYTE(0x62);
BYTE(0x65); BYTE(0x20); BYTE(0x72);
BYTE(0x75); BYTE(0x6E); BYTE(0x20);
BYTE(0x69); BYTE(0x6E); BYTE(0x20);
BYTE(0x44); BYTE(0x4F); BYTE(0x53);
BYTE(0x20); BYTE(0x6D); BYTE(0x6F);
BYTE(0x64); BYTE(0x65); BYTE(0x2E);
BYTE(0x0D); BYTE(0x0D); BYTE(0x0A);
BYTE(0x24); BYTE(0x00); BYTE(0x00);
. = ALIGN(16);
c = .;
\n'''
),
mem(
b'''
o = .;
BYTE(0xFE); BYTE(0xED); BYTE(0xFA);
BYTE(0xCE); BYTE(0x01); BYTE(0x00);
BYTE(0x00); BYTE(0x01);
QUAD(0);
. = ALIGN(16);
c = .;
\n'''
),
mem(
b'''
o = .;
BYTE(0x21); BYTE(0x3C); BYTE(0x61);
BYTE(0x72); BYTE(0x63); BYTE(0x68);
BYTE(0x3E); BYTE(0x0A);
. = ALIGN(16);
c = .;
\n'''
),
mem(
b'''
o = .;
LONG(0xBEBAFECA);
SHORT(0); SHORT(55);
. = ALIGN(16);
c = .;
\n'''
),
mem(
b'''
o = .;
BYTE(0x23); BYTE(0x21); BYTE(0x2F);
BYTE(0x62); BYTE(0x69); BYTE(0x6E);
BYTE(0x2F); BYTE(0x62); BYTE(0x61);
BYTE(0x73); BYTE(0x68); BYTE(0x0A);
. = ALIGN(16);
c = .;
\n'''
),
mem(b'''
o = .;
BYTE(0x55); BYTE(0x50); BYTE(0x58);
BYTE(0x21);
LONG(0x0000000D); LONG(0x00000000);
. = ALIGN(16);
c = .;
\n'''
),
mem(
b'''
o = .;
BYTE(0xFD); BYTE(0x37); BYTE(0x7A);
BYTE(0x58); BYTE(0x5A); BYTE(0x00);
. = ALIGN(16);
c = .;
\n'''
),
mem(
b'''
o = .;
LONG(0xFD2FB528);
. = ALIGN(16);
c = .;
\n'''
),
mem(
b'''
o = .;
BYTE(0x50); BYTE(0x4B); BYTE(0x03);
BYTE(0x04);
. = ALIGN(16);
c = .;
\n'''
),
mem(
b'''
o = .;
BYTE(0x1F); BYTE(0x8B); BYTE(0x08);
BYTE(0x00);
LONG(0);
. = ALIGN(16);
c = .;
\n'''
),
mem(
b'''
o = .;
BYTE(0x37); BYTE(0x7A); BYTE(0xBC);
BYTE(0xAF); BYTE(0x27); BYTE(0x1C);
. = ALIGN(16);
c = .;
\n'''
),
mem(
b'''
o = .;
BYTE(0x42); BYTE(0x4D);
LONG(0); LONG(0);
. = ALIGN(16);
c = .;
\n'''
),
mem(b'''
o = .;
BYTE(0x89); BYTE(0x50); BYTE(0x4E);
BYTE(0x47); BYTE(0x0D); BYTE(0x0A);
BYTE(0x1A); BYTE(0x0A);
. = ALIGN(16);
c = .;
\n'''
),
mem(
b'''
o = .;
BYTE(0xFF); BYTE(0xD8); BYTE(0xFF);
BYTE(0xE0);
SHORT(0);
BYTE(0x4A); BYTE(0x46); BYTE(0x49);
BYTE(0x46); BYTE(0x00);
. = ALIGN(16);
c = .;
\n'''
),
mem(
b'''
o = .;
BYTE(0x49); BYTE(0x44); BYTE(0x33);
BYTE(0x03); BYTE(0x00); BYTE(0x00);
QUAD(0);
. = ALIGN(16);
c = .;
\n'''
),
mem(
b'''
o = .;
LONG(0x00000018);
BYTE(0x66); BYTE(0x74); BYTE(0x79);
BYTE(0x70); BYTE(0x69); BYTE(0x73);
BYTE(0x6F); BYTE(0x6D);
LONG(0x00000200);
. = ALIGN(16);
c = .;
\n'''
),
mem(
b'''
o = .;
BYTE(0x25); BYTE(0x50); BYTE(0x44);
BYTE(0x46); BYTE(0x2D); BYTE(0x31);
BYTE(0x2E); BYTE(0x37); BYTE(0x0A);
. = ALIGN(16);
c = .;
\n'''
),
mem(
b'''
o = .;
BYTE(0x3C); BYTE(0x3F); BYTE(0x78);
BYTE(0x6D); BYTE(0x6C); BYTE(0x20);
BYTE(0x76); BYTE(0x65); BYTE(0x72);
BYTE(0x73); BYTE(0x69); BYTE(0x6F);
BYTE(0x6E); BYTE(0x3D); BYTE(0x22);
BYTE(0x31); BYTE(0x2E); BYTE(0x30);
BYTE(0x22); BYTE(0x3F); BYTE(0x3E);
BYTE(0x0A);
. = ALIGN(16);
c = .;
\n'''
),
mem(
b'''
o = .;
BYTE(0x3C); BYTE(0x21); BYTE(0x44);
BYTE(0x4F); BYTE(0x43); BYTE(0x54);
BYTE(0x59); BYTE(0x50); BYTE(0x45);
BYTE(0x20); BYTE(0x68); BYTE(0x74);
BYTE(0x6D); BYTE(0x6C); BYTE(0x3E);
BYTE(0x0A);
. = ALIGN(16);
c = .;
\n'''
),
mem(
b'''
o = .;
BYTE(0x53); BYTE(0x51); BYTE(0x4C);
BYTE(0x69); BYTE(0x74); BYTE(0x65);
BYTE(0x20); BYTE(0x66); BYTE(0x6F);
BYTE(0x72); BYTE(0x6D); BYTE(0x61);
BYTE(0x74); BYTE(0x20); BYTE(0x33);
BYTE(0x00);
. = ALIGN(16);
c = .;
\n'''
),
mem(
b'''
o = .;
BYTE(0xD0); BYTE(0xCF); BYTE(0x11);
BYTE(0xE0); BYTE(0xA1); BYTE(0xB1);
BYTE(0x1A); BYTE(0xE1);
QUAD(0);
. = ALIGN(16);
c = .;
\n'''
),
mem(
b'''
o = .;
BYTE(0x00); BYTE(0x01); BYTE(0x00);
BYTE(0x00); BYTE(0x00); BYTE(0x0D);
BYTE(0x00); BYTE(0x80);
. = ALIGN(16);
c = .;
\n'''
),
mem(
b'''
o = .;
BYTE(0x00); BYTE(0x61); BYTE(0x73);
BYTE(0x6D); BYTE(0x01); BYTE(0x00);
BYTE(0x00); BYTE(0x00);
QUAD(0);
. = ALIGN(16);
c = .;
\n'''
),
mem(
b'''
o = .;
BYTE(0x99); BYTE(0x01);
SHORT(0); QUAD(0);
. = ALIGN(16);
c = .;
\n'''
)
)
EXIT: tuple[mem] = (
mem(b'SYSCALL(SYS_MPROTECT, &argc, CHUNK, 1, NULL, NULL, NULL); *(int*)NULL = NULL;'),
mem(b'SYSCALL(SYS_READ, &envp, argv, (long)&argc & 0xFFFFF, NULL, NULL, NULL); __asm__ volatile ("ud2");'),
mem(b'SYSCALL(SYS_OPENAT, AT_FDCWD, "/dev/null", &argc, NULL, NULL, NULL); __asm__ volatile ("int3"); EXIT();'),
mem(b'while (1) __asm__ volatile ("pause"); EXIT();'),
mem(b'EXIT();')
)
if FLAG_OBF:
JKFCAL: tuple[mem] = (
mem(b'"\\n"'),
mem(b'"call main\\n"'),
mem(b'"call _start\\n"')
)
JUNK: tuple[mem] = [
mem(b''),
mem(b'nop'),
mem(b'rep nop'),
mem(b'nop\\n\\tnop'),
mem(b'nop\\n\\tnop\\n\\tnop'),
mem(b'fnop'),
mem(b'fnop\\n\\tfnop'),
mem(b'fnop\\n\\tfnop\\n\\tfnop'),
mem(b'wait'),
mem(b'wait\\n\\twait'),
mem(b'wait\\n\\twait\\n\\twait'),
mem(b'pause'),
mem(b'pause\\n\\tpause'),
mem(b'pause\\n\\tpause\\n\\tpause'),
mem(b'cld'),
mem(b'std\\n\\tcld'),
mem(b'clc'),
mem(b'stc\\n\\tclc'),
mem(b'pushfq\\n\\tpopfq'),
mem(b'mfence'),
mem(b'lfence'),
mem(b'mfence\\n\\tlfence'),
mem(b'lfence\\n\\tmfence'),
mem(b'endbr64')
]
_tmp = (
b'nopl (%b)',
b'nopl 0x00(%b, %b, 1)',
b'or %b, %b',
b'and %b, %b',
b'not %b\\n\\tnot %b',
b'neg %b\\n\\tneg %b',
b'test %b, %b',
b'bt $0, %b',
b'btc $0, %b\\n\\tbtc $0, %b',
b'add $0, %b',
b'sub $0, %b',
b'shl $0, %b',
b'shr $0, %b',
b'shld $0, %b, %b',
b'shrd $0, %b, %b',
b'sar $0, %b',
b'sal $0, %b',
b'rol $0, %b',
b'ror $0, %b',
b'mov %b, %b',
b'push %b\\n\\tpop %b',
b'lea (%b), %b',
b'lea 0(%b), %b',
b'lea 0x0(, %b, 1), %b',
b'xchg %b, %b',
b'bswap %b\\n\\tbswap %b',
b'cmovz %b, %b',
b'cmovnz %b, %b',
b'cmovc %b, %b',
b'cmovnc %b, %b',
b'cmovo %b, %b',
b'cmovno %b, %b',
b'cmovs %b, %b',
b'cmovns %b, %b',
b'cmovpe %b, %b',
b'cmovpo %b, %b',
b'cmovb %b, %b',
b'cmovae %b, %b',
b'cmovbe %b, %b',
b'cmova %b, %b',
b'cmovge %b, %b',
b'cmovle %b, %b',
b'prefetcht0 (%b)',
b'prefetcht1 (%b)',
b'prefetcht2 (%b)',
b'prefetchw (%b)'
)
_regs = (
b'%%rax', b'%%rbx', b'%%rcx',
b'%%rdx', b'%%rsi', b'%%rdi',
b'%%r8', b'%%r9', b'%%r10',
b'%%r11'
)
_b = b'%b'
JUNK += (
mem(f.replace(_b, r))
for r in _regs
for f in _tmp
)
del _tmp, _regs, _b
JUNK = tuple(JUNK)
else:
JKFCAL = ( mem(b'"\\n"'), )
JUNK = ( mem(b''), )
color = type(
'color', (),
{
'__slots__' : (),
'__call__' : lambda t, c, b: (
t._ch.get(b.__hash__()) or
t._ch.setdefault(b.__hash__(),
mem(getattr(
t,
c if t._ty else 'white'
)(b))
)
),
'_ch' : {},
'_ty' : sys.stdout.isatty(),
sys.intern('white') : b'%b\n'.__mod__,
sys.intern('green') : b'\033[92m%b\033[0m\n'.__mod__,
sys.intern('yellow') : b'\033[93m%b\033[0m\n'.__mod__,
sys.intern('red') : b'\033[91m%b\033[0m\n'.__mod__,
sys.intern('bar') : b'\r\033[93m%b\033[0m'.__mod__
}
)()
def log(
msg : mem,
err : bool=False,
*,
_out=sys.stdout.buffer,
_err=sys.stderr.buffer
) -> None:
o = _err if err else _out
o.write(msg)
o.flush()
def logbar(
txt : mem,
cur : int,
tol : int,
*,
_el=mem(b'-' * 20),
_fm=b'%b {%-20b} %3d%%'.__mod__,
_mm=mem,
_cl=color,
_lg=log,
_ch=[None]
) -> None:
p = (cur * 20) // tol
if p == _ch[0]:
return
_ch[0] = p
b = _el[0 : p]
_lg(_cl('bar', _mm(
_fm((txt, b, p * 5))
)))
def gen_chars(
*,
_b=rand.randbelow,
_g=rand.choice,
_c=mem(b'0123456789_abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'),
_s=[None]
) -> mem:
l = 4 + _b(250)
b = array(l)
p = mem(b)
if _s[0] is None:
_s[0] = _c[10 :] # start with '_'
while l:
l -= 1
p[l] = _g(_c)
p[0] = _g(_s[0])
return p
def gen_junk(
cmd : bool=False,
prc : bool=False,
*,
_em=mem(b''),
_sp=b'\\n\\t'.join,
_f0=b'"%b\\n"'.__mod__,
_f1=b'__asm__ volatile ("%b");'.__mod__,
_a=JUNK,
_b=tuple(mem(j.tobytes().replace(b'%%', b'%'))
for j in JUNK)
,
_r=rand.randbelow,
_c=rand.choice
) -> mem:
if not FLAG_OBF:
return mem((_f0 if cmd else _f1)(_em))
n = 1 + _r(10)
return mem(
(_f0 if cmd else _f1)(_sp(
map(_c, [_b if prc else _a] * n)
))
)
def compress(
dt : mmap.mmap,
dln : int,
out : mem,
*,
_q=MSG[b'bar_compress'],
_b=logbar
) -> mem:
_g = dt.__getitem__
_t = out.__setitem__
i = j = 0
while i < dln:
if not (i & 0x3FFF):
_b(_q, i, dln)
r = 1
c = _g(i)
u = 127 if (dln - i) > 127 else dln - i
while (r < u) and (_g(i + r) == c): r += 1
if r >= 3:
_t(j, 0x80 | r)
_t(j + 1, c )
j += 2
i += r
else:
s = i
u = dln if dln < (s + 126) else s + 126
while (i < u) and not (
((i + 2) < dln) and (_g(i) == _g(i + 1) == _g(i + 2))
): i += 1
l = i - s
if l:
_t(j, l)
j += 1
out[j : j + l] = dt[s : i]
j += l
_b(_q, dln, dln)
log(color('green', MSG[b'bar_done']))
return out[0 : j]
def enc(
dt : mem,
key : mem,
salt : int,
*,
_rep=False,
_q=MSG[b'bar_enc'],
_b=logbar
) -> mem:
sz = len(dt)
kl = len(key)
mk = kl - 1
if _rep:
out = dt
else:
buf = array(sz)
out = mem(buf)
_g = dt.__getitem__
_v = key.__getitem__
_t = out.__setitem__
i = salt & 0xFF
for j in range(sz):
if _rep and not (j & 0x3FFF):
_b(_q, j, sz)
k = _v( (j + i) & mk )
y = ( k ^ (j & 0xFF) ^ (j >> 8) ) & 0xFF
x = ( _g(j) ^ y ^ i ) & 0xFF
x = ( (x << 3) | (x >> 5) ) & 0xFF
x = ( x + (y ^ 0xA5) ) & 0xFF
_t(j, x)
i = ( x ^ ((y << 1) & 0xFF) ^ (i >> 1) ) & 0xFF
if _rep:
_b(_q, sz, sz)
log(color('green', MSG[b'bar_done']))
return out
def writef(fp: bytes, dt: mem, *, _ck=CHUNK) -> bool:
sz = len(dt)
fd = -1
try:
fd = os.open(fp, os.O_RDWR|os.O_CREAT|os.O_TRUNC, 0o644)
os.ftruncate(fd, sz)
with mmap.mmap(
fd, sz,
prot=mmap.PROT_WRITE, flags=mmap.MAP_SHARED
) as mp:
mp.madvise(mmap.MADV_SEQUENTIAL)
for i in range(0, sz, _ck):
e = i + _ck if (i + _ck) < sz else sz
mp[i : e] = dt[i : e]
mp.flush()
return True
except OSError:
return False
finally:
if fd != -1:
os.fsync(fd)
os.close(fd)