Sample viewer

vx.netlux.org/Virus.DOS.Jerusalem.b8

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GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T22:19:18.330907754Z 225 PC: 19d4e | UNKNOWN!
2018-12-17T22:19:18.332875435Z 74 PC: 12bb2 | Reallocate memory
2018-12-17T22:19:18.334847682Z 53 PC: 12bb7 | Get interrupt vector (Interrupt = '33' AKA 'Random read')
2018-12-17T22:19:18.336290247Z 37 PC: 12bcb | Set interrupt vector (Interrupt = '33' AKA 'Random read')
2018-12-17T22:19:18.35156907Z 42 PC: 12bfb | Get date 0x12bfb: mov byte ptr cs:[0xe], 0
0x12c01: cmp cx, 0x7c8
0x12c05: je 0x12c37
0x12c07: cmp al, 2
0x12c09: jne 0x12c18
0x12c0b: cmp dl, 0xd
0x12c0e: jne 0x12c18
0x12c10: inc byte ptr cs:[0xe]
0x12c15: jmp 0x12c37
0x12c17: nop
0x12c18: mov ax, 0x3508
0x12c1b: int 0x21
0x12c1d: mov word ptr cs:[0x13], bx
0x12c22: mov word ptr cs:[0x15], es
0x12c27: push cs
0x12c28: pop ds
0x12c29: mov word ptr [0x1f], 0x7e90
0x12c2f: mov ax, 0x2508
0x12c32: mov dx, 0x21e
0x12c35: int 0x21
2018-12-17T22:19:18.354444357Z 53 PC: 12c1d | Get interrupt vector (Interrupt = '8' AKA 'Console input without echo')
2018-12-17T22:19:18.356160543Z 37 PC: 12c37 | Set interrupt vector (Interrupt = '8' AKA 'Console input without echo')
2018-12-17T22:19:18.357961946Z 75 PC: 12c43 | Execute program
2018-12-17T22:19:18.38778634Z 48 PC: 1a546 | Get DOS version
2018-12-17T22:19:18.389245107Z 74 PC: 1a5a0 | Reallocate memory
2018-12-17T22:19:18.391286645Z 48 PC: 1a5f8 | Get DOS version
2018-12-17T22:19:18.393438733Z 53 PC: 1a600 | Get interrupt vector (Interrupt = '0' AKA 'Program terminate')
2018-12-17T22:19:18.395216585Z 37 PC: 1a612 | Set interrupt vector (Interrupt = '0' AKA 'Program terminate')
2018-12-17T22:19:18.39699817Z 68 PC: 1a696 | I/O control for devices (Set for = '')
2018-12-17T22:19:18.410943531Z 68 PC: 1a696 | I/O control for devices (Set for = 'Ӿ}=UuNj')
2018-12-17T22:19:18.412579368Z 68 PC: 1a696 | I/O control for devices (Set for = '>X+>X')
2018-12-17T22:19:18.414128648Z 68 PC: 1a696 | I/O control for devices (Set for = 'Vvvo>X')
2018-12-17T22:19:18.416499868Z 68 PC: 1a696 | I/O control for devices (Set for = 'Vvvo>X')
2018-12-17T22:19:18.418838269Z 53 PC: 1be67 | Get interrupt vector (Interrupt = '35' AKA 'Get file size in records')
2018-12-17T22:19:18.420242343Z 37 PC: 1be7c | Set interrupt vector (Interrupt = '35' AKA 'Get file size in records')
2018-12-17T22:19:18.422899369Z 99 PC: 1e7a9 | Get DBCS lead byte table pointer
2018-12-17T22:19:18.425025313Z 68 PC: 1e7c3 | I/O control for devices (Set for = '')
2018-12-17T22:19:18.427263222Z 68 PC: 1e7ce | I/O control for devices (Set for = '')
2018-12-17T22:19:18.430225214Z 68 PC: 1e7d9 | I/O control for devices (Set for = '')
2018-12-17T22:19:18.431920148Z 68 PC: 1e7e1 | I/O control for devices (Set for = 'bgtS3[r2W<t<u6u>>W')
2018-12-17T22:19:18.433871894Z 48 PC: 1e7e6 | Get DOS version
2018-12-17T22:19:18.437251271Z 98 PC: 1bd04 | Get current PSP
2018-12-17T22:19:18.456011306Z 68 PC: 1bd04 | I/O control for devices (Set for = '')
2018-12-17T22:19:18.459538074Z 26 PC: 1bd04 | Set disk transfer address
2018-12-17T22:19:18.474813273Z 78 PC: 1bcb3 | Find first file
2018-12-17T22:19:18.482023577Z 68 PC: 1bd04 | I/O control for devices (Set for = '')
2018-12-17T22:19:18.500337499Z 12 PC: 1bcb3 | Flush input buffer and input