Investigation of Linux.Mirai Trojan family

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56 56 Code fragment for Linux.DDoS.87 Code fragment for Linux.Mirai
Page 1 and 2:
Investigation of Linux.Mirai Trojan
Page 3 and 4:
3 3 Introduction A Trojan for Linux
Page 5 and 6: 5 5 v1[1] = XX; v1[2] = XX; v1[3] =
Page 7 and 8: 7 7 Number Data type Value Purpose
Page 9 and 10: 9 9 .text:08048206 mov ds:Q[ecx*4],
Page 11 and 12: 11 11 .text:0804B03C mov dword ptr
Page 13 and 14: 13 13 .text:0804B1FB push 0 ; flags
Page 15 and 16: 15 15 .text:0804B3C1 call ___libc_w
Page 17 and 18: 17 17 .text:0804B4A4 push eax ; int
Page 19 and 20: 19 19 .text:0804B674 push offset a2
Page 21 and 22: 21 21 .text:0804B529 push 4000h ; i
Page 23 and 24: 23 23 } char * data; Code to initia
Page 25 and 26: 25 25 .text:0804BB16 test bl, bl .t
Page 27 and 28: 27 27 setsid(); sleep(time); kill(v
Page 29 and 30: 29 29 The getNumberOrDefault functi
Page 31 and 32: 31 31 v9 = __ROR2__(sport, 8); curr
Page 33 and 34: 33 33 .text:0804AD5E add esp, 18h .
Page 35 and 36: 35 35 .text:0804A50F xor ecx, ecx .
Page 37 and 38: 37 37 In addition, TCP parameters w
Page 39 and 40: 39 39 .text:08048F6D mov eax, [esp+
Page 41 and 42: 41 41 Linux.DDoS.89 SHA1: 846b2d1b0
Page 43 and 44: 43 43 } } else { v8 = 0; while ( ++
Page 45 and 46: 45 45 { } decode(4u); decode(5u); c
Page 47 and 48: 47 47 } else { result = __GI_listen
Page 49 and 50: 49 49 Number Decrypted value Purpos
Page 51 and 52: 51 51 .text:0804C218 push 9 ; sig .
Page 53 and 54: 53 53 Number Value Purpose 16 "zoll
Page 55: 55 55 Next, the Trojan calculates a
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Investigation of Linux.Mirai Trojan family

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