Sample viewer

vx.netlux.org/Virus.DOS.NTZ.397

.

GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T21:53:24.799564733Z 26 PC: 12afa | Set disk transfer address
2018-12-17T21:53:24.801728583Z 78 PC: 12aa6 | Find first file
2018-12-17T21:53:24.808275078Z 78 PC: 12b05 | Find first file
2018-12-17T21:53:24.814518103Z 47 PC: 12b10 | Get disk transfer address
2018-12-17T21:53:24.816037509Z 61 PC: 12b20 | Open file (Filename = 'SLEEP.COM')
2018-12-17T21:53:24.823093109Z 87 PC: 12b26 | Get or set file date and time
2018-12-17T21:53:24.824767733Z 63 PC: 12b46 | Read file or device (Read 4 bytes on handle 5)
2018-12-17T21:53:24.83115945Z 66 PC: 12b58 | Move file pointer
2018-12-17T21:53:24.833467425Z 64 PC: 12b63 | Write file or device (Write 4 bytes on handle 5)
2018-12-17T21:53:24.836367586Z 66 PC: 12b6c | Move file pointer
2018-12-17T21:53:24.838209541Z 44 PC: 12a75 | Get time 0x12a75: mov byte ptr [bp + 0x12d], cl
0x12a79: mov cx, 0x12f
0x12a7c: lea si, word ptr [bp + 0x15e]
0x12a80: lea di, word ptr [bp + 0x275]
0x12a84: movsb byte ptr es:[di], byte ptr [si]
0x12a85: mov al, byte ptr [bp + 0x275]
0x12a89: xor al, byte ptr [bp + 0x12d]
0x12a8d: mov byte ptr [bp + 0x275], al
0x12a91: lea di, word ptr [si - 1]
0x12a94: lea si, word ptr [bp + 0x275]
0x12a98: movsb byte ptr es:[di], byte ptr [si]
0x12a99: mov si, di
0x12a9b: loop 0x12a80
0x12a9d: ret
0x12a9e: mov ah, 0x4e
0x12aa0: lea dx, word ptr [bp + 0x26f]
0x12aa4: int 0x21
0x12aa6: jb 0x12ae6
0x12aa8: lea dx, word ptr [bp + 0x2ab]
0x12aac: mov cl, 0x7a
2018-12-17T21:53:24.846933564Z 64 PC: 12a60 | Write file or device (Write 397 bytes on handle 5)
2018-12-17T21:53:24.86122464Z 87 PC: 12b7e | Get or set file date and time
2018-12-17T21:53:24.863000168Z 62 PC: 12b82 | Close file
2018-12-17T21:53:24.871919468Z 79 PC: 12b05 | Find next file
2018-12-17T21:53:24.875140824Z 47 PC: 12b10 | Get disk transfer address
2018-12-17T21:53:24.8766843Z 61 PC: 12b20 | Open file (Filename = 'PRINT.COM')
2018-12-17T21:53:24.893261361Z 87 PC: 12b26 | Get or set file date and time
2018-12-17T21:53:24.895701569Z 63 PC: 12b46 | Read file or device (Read 4 bytes on handle 5)
2018-12-17T21:53:24.902878577Z 66 PC: 12b58 | Move file pointer
2018-12-17T21:53:24.90504435Z 64 PC: 12b63 | Write file or device (Write 4 bytes on handle 5)
2018-12-17T21:53:24.907633983Z 66 PC: 12b6c | Move file pointer
2018-12-17T21:53:24.909234313Z 44 PC: 12a75 | Get time 0x12a75: mov byte ptr [bp + 0x12d], cl
0x12a79: mov cx, 0x12f
0x12a7c: lea si, word ptr [bp + 0x15e]
0x12a80: lea di, word ptr [bp + 0x275]
0x12a84: movsb byte ptr es:[di], byte ptr [si]
0x12a85: mov al, byte ptr [bp + 0x275]
0x12a89: xor al, byte ptr [bp + 0x12d]
0x12a8d: mov byte ptr [bp + 0x275], al
0x12a91: lea di, word ptr [si - 1]
0x12a94: lea si, word ptr [bp + 0x275]
0x12a98: movsb byte ptr es:[di], byte ptr [si]
0x12a99: mov si, di
0x12a9b: loop 0x12a80
0x12a9d: ret
0x12a9e: mov ah, 0x4e
0x12aa0: lea dx, word ptr [bp + 0x26f]
0x12aa4: int 0x21
0x12aa6: jb 0x12ae6
0x12aa8: lea dx, word ptr [bp + 0x2ab]
0x12aac: mov cl, 0x7a
2018-12-17T21:53:24.912474197Z 64 PC: 12a60 | Write file or device (Write 397 bytes on handle 5)
2018-12-17T21:53:24.924066872Z 87 PC: 12b7e | Get or set file date and time
2018-12-17T21:53:24.925476509Z 62 PC: 12b82 | Close file
2018-12-17T21:53:24.933663048Z 79 PC: 12b05 | Find next file
2018-12-17T21:53:24.935544694Z 47 PC: 12b10 | Get disk transfer address
2018-12-17T21:53:24.936453467Z 61 PC: 12b20 | Open file (Filename = 'HELLO.COM')
2018-12-17T21:53:24.942617391Z 87 PC: 12b26 | Get or set file date and time
2018-12-17T21:53:24.943786938Z 63 PC: 12b46 | Read file or device (Read 4 bytes on handle 5)
2018-12-17T21:53:24.947782087Z 66 PC: 12b58 | Move file pointer
2018-12-17T21:53:24.949406779Z 64 PC: 12b63 | Write file or device (Write 4 bytes on handle 5)
2018-12-17T21:53:24.951328404Z 66 PC: 12b6c | Move file pointer
2018-12-17T21:53:24.952477906Z 44 PC: 12a75 | Get time 0x12a75: mov byte ptr [bp + 0x12d], cl
0x12a79: mov cx, 0x12f
0x12a7c: lea si, word ptr [bp + 0x15e]
0x12a80: lea di, word ptr [bp + 0x275]
0x12a84: movsb byte ptr es:[di], byte ptr [si]
0x12a85: mov al, byte ptr [bp + 0x275]
0x12a89: xor al, byte ptr [bp + 0x12d]
0x12a8d: mov byte ptr [bp + 0x275], al
0x12a91: lea di, word ptr [si - 1]
0x12a94: lea si, word ptr [bp + 0x275]
0x12a98: movsb byte ptr es:[di], byte ptr [si]
0x12a99: mov si, di
0x12a9b: loop 0x12a80
0x12a9d: ret
0x12a9e: mov ah, 0x4e
0x12aa0: lea dx, word ptr [bp + 0x26f]
0x12aa4: int 0x21
0x12aa6: jb 0x12ae6
0x12aa8: lea dx, word ptr [bp + 0x2ab]
0x12aac: mov cl, 0x7a
2018-12-17T21:53:24.954303856Z 64 PC: 12a60 | Write file or device (Write 397 bytes on handle 5)
2018-12-17T21:53:24.95670271Z 87 PC: 12b7e | Get or set file date and time
2018-12-17T21:53:24.957863685Z 62 PC: 12b82 | Close file
2018-12-17T21:53:24.962516882Z 26 PC: 12b96 | Set disk transfer address