Sample viewer

vx.netlux.org/Virus.DOS.SillyC.306

.

GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T22:45:47.547311782Z 26 PC: 12b3e | Set disk transfer address
2018-12-17T22:45:47.549652839Z 78 PC: 12b47 | Find first file
2018-12-17T22:45:47.555376408Z 47 PC: 12b53 | Get disk transfer address
2018-12-17T22:45:47.55673534Z 79 PC: 12b47 | Find next file
2018-12-17T22:45:47.559927466Z 47 PC: 12b53 | Get disk transfer address
2018-12-17T22:45:47.561868872Z 67 PC: 12b7b | Get or set file attributes
2018-12-17T22:45:47.577246834Z 61 PC: 12b89 | Open file (Filename = 'SLEEP.COM')
2018-12-17T22:45:47.586012247Z 63 PC: 12ba2 | Read file or device (Read 4 bytes on handle 5)
2018-12-17T22:45:47.59424552Z 66 PC: 12bb4 | Move file pointer
2018-12-17T22:45:47.596297193Z 87 PC: 12bb9 | Get or set file date and time
2018-12-17T22:45:47.598305405Z 64 PC: 12bcc | Write file or device (Write 4 bytes on handle 5)
2018-12-17T22:45:47.602518778Z 66 PC: 12bd5 | Move file pointer
2018-12-17T22:45:47.607432267Z 64 PC: 12be3 | Write file or device (Write 306 bytes on handle 5)
2018-12-17T22:45:47.618757246Z 44 PC: 12be8 | Get time 0x12be8: mov cl, dl
0x12bea: mov al, cl
0x12bec: mov ax, 0x2c00
0x12bef: int 0x21
0x12bf1: mov cl, dl
0x12bf3: add cl, al
0x12bf5: ror cl, 1
0x12bf7: xor ch, ch
0x12bf9: xor dx, dx
0x12bfb: mov ah, 0x30
0x12bfd: add ah, 0x10
0x12c00: int 0x21
0x12c02: mov cx, word ptr [0x236]
0x12c06: mov dx, word ptr [0x234]
0x12c0a: mov ax, 0x5701
0x12c0d: int 0x21
0x12c0f: mov ah, 0x3e
0x12c11: int 0x21
0x12c13: mov ah, 0x4f
0x12c15: jmp 0x12b41
2018-12-17T22:45:47.624279088Z 44 PC: 12bf1 | Get time 0x12bf1: mov cl, dl
0x12bf3: add cl, al
0x12bf5: ror cl, 1
0x12bf7: xor ch, ch
0x12bf9: xor dx, dx
0x12bfb: mov ah, 0x30
0x12bfd: add ah, 0x10
0x12c00: int 0x21
0x12c02: mov cx, word ptr [0x236]
0x12c06: mov dx, word ptr [0x234]
0x12c0a: mov ax, 0x5701
0x12c0d: int 0x21
0x12c0f: mov ah, 0x3e
0x12c11: int 0x21
0x12c13: mov ah, 0x4f
0x12c15: jmp 0x12b41
0x12c18: mov ah, 0x1a
0x12c1a: mov dx, 0x80
0x12c1d: int 0x21
0x12c1f: mov bx, 0x102
2018-12-17T22:45:47.627966282Z 64 PC: 12c02 | Write file or device (Write 161 bytes on handle 5)
2018-12-17T22:45:47.631290576Z 87 PC: 12c0f | Get or set file date and time
2018-12-17T22:45:47.633604983Z 62 PC: 12c13 | Close file
2018-12-17T22:45:47.643146032Z 79 PC: 12b47 | Find next file
2018-12-17T22:45:47.646271984Z 47 PC: 12b53 | Get disk transfer address
2018-12-17T22:45:47.647858563Z 79 PC: 12b47 | Find next file
2018-12-17T22:45:47.651634445Z 47 PC: 12b53 | Get disk transfer address
2018-12-17T22:45:47.652808059Z 79 PC: 12b47 | Find next file
2018-12-17T22:45:47.655906909Z 47 PC: 12b53 | Get disk transfer address
2018-12-17T22:45:47.666383796Z 242 PC: 12b7b | UNKNOWN!
2018-12-17T22:45:47.667624466Z 61 PC: 12b89 | Open file (Filename = 'PRINT.COM')
2018-12-17T22:45:47.677473434Z 63 PC: 12ba2 | Read file or device (Read 4 bytes on handle 5)
2018-12-17T22:45:47.685566153Z 66 PC: 12bb4 | Move file pointer
2018-12-17T22:45:47.688350823Z 87 PC: 12bb9 | Get or set file date and time
2018-12-17T22:45:47.690483659Z 64 PC: 12bcc | Write file or device (Write 4 bytes on handle 5)
2018-12-17T22:45:47.697328635Z 66 PC: 12bd5 | Move file pointer
2018-12-17T22:45:47.700006725Z 64 PC: 12be3 | Write file or device (Write 306 bytes on handle 5)
2018-12-17T22:45:47.703922439Z 44 PC: 12be8 | Get time 0x12be8: mov cl, dl
0x12bea: mov al, cl
0x12bec: mov ax, 0x2c00
0x12bef: int 0x21
0x12bf1: mov cl, dl
0x12bf3: add cl, al
0x12bf5: ror cl, 1
0x12bf7: xor ch, ch
0x12bf9: xor dx, dx
0x12bfb: mov ah, 0x30
0x12bfd: add ah, 0x10
0x12c00: int 0x21
0x12c02: mov cx, word ptr [0x236]
0x12c06: mov dx, word ptr [0x234]
0x12c0a: mov ax, 0x5701
0x12c0d: int 0x21
0x12c0f: mov ah, 0x3e
0x12c11: int 0x21
0x12c13: mov ah, 0x4f
0x12c15: jmp 0x12b41
2018-12-17T22:45:47.70882665Z 44 PC: 12bf1 | Get time 0x12bf1: mov cl, dl
0x12bf3: add cl, al
0x12bf5: ror cl, 1
0x12bf7: xor ch, ch
0x12bf9: xor dx, dx
0x12bfb: mov ah, 0x30
0x12bfd: add ah, 0x10
0x12c00: int 0x21
0x12c02: mov cx, word ptr [0x236]
0x12c06: mov dx, word ptr [0x234]
0x12c0a: mov ax, 0x5701
0x12c0d: int 0x21
0x12c0f: mov ah, 0x3e
0x12c11: int 0x21
0x12c13: mov ah, 0x4f
0x12c15: jmp 0x12b41
0x12c18: mov ah, 0x1a
0x12c1a: mov dx, 0x80
0x12c1d: int 0x21
0x12c1f: mov bx, 0x102
2018-12-17T22:45:47.713102811Z 64 PC: 12c02 | Write file or device (Write 164 bytes on handle 5)
2018-12-17T22:45:47.717726985Z 87 PC: 12c0f | Get or set file date and time
2018-12-17T22:45:47.720314235Z 62 PC: 12c13 | Close file
2018-12-17T22:45:47.732260742Z 79 PC: 12b47 | Find next file
2018-12-17T22:45:47.73643909Z 47 PC: 12b53 | Get disk transfer address
2018-12-17T22:45:47.738549774Z 79 PC: 12b47 | Find next file
2018-12-17T22:45:47.747978032Z 47 PC: 12b53 | Get disk transfer address