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Initial commit

Yann Weber 4年前
コミット
6a9da2eee2
4個のファイルの変更283行の追加0行の削除
  1. 37
    0
      Makefile
  2. 19
    0
      README.txt
  3. 213
    0
      amd64elfquine.asm
  4. 14
    0
      check.sh

+ 37
- 0
Makefile ファイルの表示

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+NASM=nasm
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+LD=ld
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+GZIP=gzip
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+BASE64=base64
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+
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+ASFLAGS=-felf64
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+LDFLAGS=-s -melf_x86_64
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+
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+all: amd64elfquine check
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+
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+dist: amd64elfquine amd64elfquine.gz amd64elfquine.gz.txt 
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+	md5sum $^ > MD5SUMS;\
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+	sha256sum $^ > SHA256SUMS;\
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+	sha512sum $^ > SHA512SUMS;
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+
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+amd64elfquine.gz.txt: amd64elfquine.gz
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+	$(BASE64)  > $@ < $<
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+
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+amd64elfquine.gz: amd64elfquine
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+	$(GZIP) -9 -c > $@ < $<
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+
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+amd64elfquine: amd64elfquine.o
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+	$(LD) $(LDFLAGS) $< -o $@
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+
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+amd64elfquine.o: amd64elfquine.asm
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+	$(NASM) $(ASFLAGS) $< -o $@
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+
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+.PHONY: clean dist check
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+
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+check: amd64elfquine
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+	/bin/sh check.sh
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+
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+clean:
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+	-rm -fv amd64elfquine.o
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+
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+distclean: clean
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+	-rm -fv amd64elfquine amd64elfquine.gz amd64elfquine.gz.txt MD5SUMS SHA256SUMS SHA512SUMS

+ 19
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README.txt ファイルの表示

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+amd64elfquine : A GNU/Linux AMD X86-64 ELF Quine.
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+===============
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+	Produce itself on stdout without reading outside .data section.
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+
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+Compile :
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+---------
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+	# Needs nasm, ld
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+	# And sh, hexdump, diff, for check.sh
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+ 	make
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+
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+Produce a copy :
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+----------------
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+	./amd64elfquine > amd64elfquine_copy
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+
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+Produce distributable copies :
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+------------------------------
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+	# Needs gzip, base64, md5sum, sha256sum, sha512sum
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+	make dist
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+

+ 213
- 0
amd64elfquine.asm ファイルの表示

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+; Copyright (C) 2020 Weber Yann <amd64elfquine@yannweb.net>
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+; 
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+; This program is free software; you can redistribute it and/or modify
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+; it under the terms of the GNU General Public License as published by
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+; the Free Software Foundation; either version 3 of the License, or
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+; any later version.
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+; 
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+; This program is distributed in the hope that it will be useful,
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+; but WITHOUT ANY WARRANTY; without even the implied warranty of
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+; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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+; GNU General Public License for more details.
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+; 
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+; You should have received a copy of the GNU General Public License
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+; along with this program.  If not, see <http://www.gnu.org/licenses/>.
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+;
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+; amd64elfquine : A GNU/Linux AMD X86-64 ELF Quine.
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+; ===============
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+; 	Produce itself on stdout without reading outside .data section.
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+; 
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+; Compile :
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+; ---------
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+; 	# Needs nasm, ld
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+; 	# And sh, hexdump, diff, for check.sh
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+;  	make
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+; 
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+; Produce a copy :
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+; ----------------
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+; 	./amd64elfquine > amd64elfquine_copy
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+; 
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+; Produce distributable copies :
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+; ------------------------------
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+; 	# Needs gzip, base64, md5sum, sha256sum, sha512sum
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+; 	make dist
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+; 
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+
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+[bits 64]
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+section .data
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+
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+	elf_head:
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+		dw 0x457f, 0x464c, 0x0102, 0x0001, 0x0000, 0x0000, 0x0000, 0x0000
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+		dw 0x0002, 0x003e, 0x0001, 0x0000, 0x1000, 0x0040, 0x0000, 0x0000
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+		dw 0x0040, 0x0000, 0x0000, 0x0000, 0x4230, 0x0000, 0x0000, 0x0000
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+		dw 0x0000, 0x0000, 0x0040, 0x0038, 0x0004, 0x0040, 0x0005, 0x0004
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+		dw 0x0001, 0x0000, 0x0004, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
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+		dw 0x0000, 0x0040, 0x0000, 0x0000, 0x0000, 0x0040, 0x0000, 0x0000
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+		dw 0x0140, 0x0000, 0x0000, 0x0000, 0x0140, 0x0000, 0x0000, 0x0000
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+		dw 0x1000, 0x0000, 0x0000, 0x0000, 0x0001, 0x0000, 0x0005, 0x0000
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+		dw 0x1000, 0x0000, 0x0000, 0x0000, 0x1000, 0x0040, 0x0000, 0x0000
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+		dw 0x1000, 0x0040, 0x0000, 0x0000, 0x00c6, 0x0000, 0x0000, 0x0000
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+		dw 0x00c6, 0x0000, 0x0000, 0x0000, 0x1000, 0x0000, 0x0000, 0x0000
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+		dw 0x0001, 0x0000, 0x0006, 0x0000, 0x2000, 0x0000, 0x0000, 0x0000
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+		dw 0x2000, 0x0040, 0x0000, 0x0000, 0x2000, 0x0040, 0x0000, 0x0000
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+		dw 0x2200, 0x0000, 0x0000, 0x0000, 0x2200, 0x0000, 0x0000, 0x0000
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+		dw 0x1000, 0x0000, 0x0000, 0x0000, 0x0004, 0x0000, 0x0004, 0x0000
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+		dw 0x0120, 0x0000, 0x0000, 0x0000, 0x0120, 0x0040, 0x0000, 0x0000
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+		dw 0x0120, 0x0040, 0x0000, 0x0000, 0x0020, 0x0000, 0x0000, 0x0000
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+		dw 0x0020, 0x0000, 0x0000, 0x0000, 0x0008, 0x0000, 0x0000, 0x0000
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+		dw 0x0004, 0x0000, 0x0010, 0x0000, 0x0005, 0x0000, 0x4e47, 0x0055
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+		dw 0x0001, 0xc000, 0x0004, 0x0000, 0x0001
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+		times 0xec6 db 0
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+
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+	code:
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+		; writing elf head
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+		mov rax, 1 ; write
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+		mov rdi, rax ; stdout
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+		mov rsi, elf_head
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+		mov rdx, 0x1000
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+		syscall
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+		cmp rax, 0
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+		jl code.err
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+		; writing text section
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+		; _start
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+		mov rax, 1 ; write
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+		mov rdi, rax ; stdout
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+		mov rsi, code
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+		mov rdx, 0x1000
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+		syscall
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+		cmp rax, 0
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+		jl code.err
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+		; writing data section
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+		; elf_head
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+		mov rax, 1 ; write
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+		mov rdi, rax ; stdout
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+		mov rsi, elf_head
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+		mov rdx, 0x1000
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+		syscall
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+		cmp rax, 0
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+		jl code.err
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+		; code
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+		mov rax, 1 ; write
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+		mov rdi, rax ; stdout
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+		mov rsi, code
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+		mov rdx, 0x1000
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+		syscall
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+		cmp rax, 0
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+		jl code.err
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+		; text section end
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+		; elf_foot
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+		mov rax, 1
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+		mov rdi, rax ; stdout
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+		mov rsi, elf_foot
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+		mov rdx, elf_foot_data_sz
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+		syscall
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+		; data section end
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+		; elf_foot
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+		mov rax, 1
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+		mov rdi, rax ; stdout
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+		mov rsi, elf_foot
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+		mov rdx, elf_foot_sz
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+		syscall
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+
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+		code.exit:
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+			mov rax, 60 ; exit
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+			xor rdi, rdi
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+			syscall
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+
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+		code.err:
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+			mov rdi, rax
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+			mov rax, 60 ; exit
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+			syscall
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+		times 0xf3a db 0
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+
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+	elf_foot:
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+		dw 0x2e00, 0x6873, 0x7473, 0x7472, 0x6261, 0x2e00, 0x6f6e, 0x6574
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+		dw 0x672e, 0x756e, 0x702e, 0x6f72, 0x6570, 0x7472, 0x0079, 0x742e
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+		dw 0x7865, 0x0074, 0x642e, 0x7461, 0x0061, 0x0000, 0x0000, 0x0000
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+		dw 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
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+		dw 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
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+		dw 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
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+		dw 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
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+		dw 0x000b, 0x0000, 0x0007, 0x0000, 0x0002, 0x0000, 0x0000, 0x0000
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+		dw 0x0120, 0x0040, 0x0000, 0x0000, 0x0120, 0x0000, 0x0000, 0x0000
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+		dw 0x0020, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
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+		dw 0x0008, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
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+		dw 0x001e, 0x0000, 0x0001, 0x0000, 0x0006, 0x0000, 0x0000, 0x0000
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+		dw 0x1000, 0x0040, 0x0000, 0x0000, 0x1000, 0x0000, 0x0000, 0x0000
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+		dw 0x00c6, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
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+		dw 0x0010, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
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+		dw 0x0024, 0x0000, 0x0001, 0x0000, 0x0003, 0x0000, 0x0000, 0x0000
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+		dw 0x2000, 0x0040, 0x0000, 0x0000, 0x2000, 0x0000, 0x0000, 0x0000
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+		dw 0x2200, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
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+		dw 0x0004, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
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+		dw 0x0001, 0x0000, 0x0003, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
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+		dw 0x0000, 0x0000, 0x0000, 0x0000, 0x4200, 0x0000, 0x0000, 0x0000
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+		dw 0x002a, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000
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+		dw 0x0001
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+		times 0xe db 0
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+	elf_foot_sz: equ $ - elf_foot
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+		times 0x90 db 0 ; .data allign
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+	elf_foot_data_sz: equ $ - elf_foot 
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+
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+section .text
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+global _start
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+_start:
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+	; writing elf head
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+	mov rax, 1 ; write
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+	mov rdi, rax ; stdout
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+	mov rsi, elf_head
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+	mov rdx, 0x1000
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+	syscall
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+	cmp rax, 0
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+	jl .err
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+	; writing text section
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+	; _start
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+	mov rax, 1 ; write
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+	mov rdi, rax ; stdout
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+	mov rsi, code
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+	mov rdx, 0x1000
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+	syscall
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+	cmp rax, 0
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+	jl .err
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+	; writing data section
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+	; elf_head
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+	mov rax, 1 ; write
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+	mov rdi, rax ; stdout
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+	mov rsi, elf_head
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+	mov rdx, 0x1000
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+	syscall
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+	cmp rax, 0
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+	jl .err
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+	; code
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+	mov rax, 1 ; write
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+	mov rdi, rax ; stdout
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+	mov rsi, code
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+	mov rdx, 0x1000
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+	syscall
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+	cmp rax, 0
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+	jl .err
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+	; text section end
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+	; elf_foot
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+	mov rax, 1
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+	mov rdi, rax ; stdout
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+	mov rsi, elf_foot
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+	mov rdx, elf_foot_data_sz
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+	syscall
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+	; data section end
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+	; elf_foot
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+	mov rax, 1
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+	mov rdi, rax ; stdout
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+	mov rsi, elf_foot
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+	mov rdx, elf_foot_sz
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+	syscall
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+
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+	.exit:
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+		mov rax, 60 ; exit
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+		xor rdi, rdi
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+		syscall
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+
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+	.err:
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+		
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+		mov rdi, rax
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+		mov rax, 60 ; exit
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+		syscall

+ 14
- 0
check.sh ファイルの表示

@@ -0,0 +1,14 @@
1
+#!/bin/sh
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+
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+tmpcopy=$(tempfile -s elfquine_copy)
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+dump1=$(tempfile -s elfquine.hexdump)
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+dump2=$(tempfile -s elfquine_copy.hexdump)
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+
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+./amd64elfquine > $tmpcopy
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+hexdump -C amd64elfquine > $dump1
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+hexdump -C $tmpcopy > $dump2
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+
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+diff -rupN $dump1 $dump2 && echo "[Success] No differences"
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+ret=$?
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+rm $tmpcopy $dump1 $dump2
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+exit $ret

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