Sample viewer

vx.netlux.org/Trojan.DOS.Direct.b

.

GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T22:46:15.276817229Z 72 PC: 8f1b9 | Allocate memory
2018-12-17T22:46:15.279818099Z 72 PC: 8f1bd | Allocate memory
2018-12-17T22:46:15.282322567Z 99 PC: 90858 | Get DBCS lead byte table pointer
2018-12-17T22:46:15.285488573Z 61 PC: 91f88 | Open file (Filename = 'C:\WINDOWS\HIMEM.SYS')
2018-12-17T22:46:15.297985107Z 66 PC: 91f95 | Move file pointer
2018-12-17T22:46:15.300088842Z 62 PC: 91fc1 | Close file
2018-12-17T22:46:15.302700841Z 75 PC: 91fe0 | Execute program
2018-12-17T22:46:15.321595982Z 98 PC: 916f1 | Get current PSP
2018-12-17T22:46:15.331701892Z 9 PC: c605 | Display string (String= '6��r�&;] u')
2018-12-17T22:46:15.336889387Z 48 PC: c609 | Get DOS version
2018-12-17T22:46:15.340555306Z 9 PC: c382 | Display string (String= ' Installed A20 handler number ')
2018-12-17T22:46:15.350986219Z 2 PC: c38c | Character output (Char = '32')
2018-12-17T22:46:15.353490791Z 2 PC: c3a7 | Character output (Char = '2e')
2018-12-17T22:46:15.357559723Z 9 PC: c6d9 | Display string (String= '�����VH�VD���V@��������������_���Ku��t1��������D�����t �� ��������a1��Z�����W���� ������5���|�����(���������Nj�(��������p�^')
2018-12-17T22:46:15.366178789Z 9 PC: c6e0 | Display string (String= '�5���|�����(���������Nj�(��������p�^')
2018-12-17T22:46:15.372054363Z 61 PC: 91f88 | Open file (Filename = 'C:\WINDOWS\SMARTDRV.EXE')
2018-12-17T22:46:15.38363805Z 66 PC: 91f95 | Move file pointer
2018-12-17T22:46:15.386013032Z 62 PC: 91fc1 | Close file
2018-12-17T22:46:15.388372354Z 75 PC: 91fe0 | Execute program
2018-12-17T22:46:15.412539737Z 98 PC: 916f1 | Get current PSP
2018-12-17T22:46:15.417420423Z 82 PC: 13d46 | Get DOS internal pointers (SYSVARS)
2018-12-17T22:46:15.419078395Z 53 PC: 13ac3 | Get interrupt vector (Interrupt = '19' AKA 'Delete file')
2018-12-17T22:46:15.42072808Z 37 PC: 13ad6 | Set interrupt vector (Interrupt = '19' AKA 'Delete file')
2018-12-17T22:46:15.422745313Z 53 PC: 13ae0 | Get interrupt vector (Interrupt = '47' AKA 'Get disk transfer address')
2018-12-17T22:46:15.424340984Z 37 PC: 13af3 | Set interrupt vector (Interrupt = '47' AKA 'Get disk transfer address')
2018-12-17T22:46:15.425869585Z 9 PC: 13a0d | Display string (Could not find end pointer)
2018-12-17T22:46:15.436398975Z 62 PC: 8f8eb | Close file
2018-12-17T22:46:15.438488066Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.440534173Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.443196903Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.446474445Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.448381914Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.450199725Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.454735489Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.456563605Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.458633745Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.461721815Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.463469478Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.465168478Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.470093718Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.47181504Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.476169071Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.478796781Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.480882957Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.482672184Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.488067736Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.489802536Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.491547516Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.493449284Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.495925628Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.49778462Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.499723651Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.502580009Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.50495204Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.50692377Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.509822254Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.511863783Z 62 PC: 8f8f2 | Close file
2018-12-17T22:46:15.513765038Z 61 PC: 8f8ff | Open file (Filename = '')
2018-12-17T22:46:15.52069289Z 62 PC: 8f90e | Close file
2018-12-17T22:46:15.523603385Z 69 PC: 8f915 | Duplicate handle
2018-12-17T22:46:15.526703143Z 69 PC: 8f919 | Duplicate handle
2018-12-17T22:46:15.529561545Z 61 PC: 9387b | Open file (Filename = '')
2018-12-17T22:46:15.534702518Z 68 PC: 9386b | I/O control for devices (Set for = '')
2018-12-17T22:46:15.536246569Z 61 PC: 9387b | Open file (Filename = '')
2018-12-17T22:46:15.546063302Z 68 PC: 9386b | I/O control for devices (Set for = '')
2018-12-17T22:46:15.547802829Z 74 PC: 8f9c4 | Reallocate memory
2018-12-17T22:46:15.549156235Z 72 PC: 8f9e0 | Allocate memory
2018-12-17T22:46:15.551561186Z 72 PC: 8f9e4 | Allocate memory
2018-12-17T22:46:15.553348725Z 74 PC: 8f9fb | Reallocate memory
2018-12-17T22:46:15.554851926Z 72 PC: 8fa02 | Allocate memory
2018-12-17T22:46:15.567128133Z 72 PC: 8fa06 | Allocate memory
2018-12-17T22:46:15.570311408Z 73 PC: 8fa11 | Release memory
2018-12-17T22:46:15.572463802Z 73 PC: 8efea | Release memory
2018-12-17T22:46:15.574739256Z 74 PC: 8f003 | Reallocate memory
2018-12-17T22:46:15.578050815Z 72 PC: 8f054 | Allocate memory
2018-12-17T22:46:15.580448856Z 72 PC: 8f058 | Allocate memory
2018-12-17T22:46:15.582595039Z 73 PC: 8f060 | Release memory
2018-12-17T22:46:15.585569953Z 61 PC: 8f080 | Open file (Filename = '')
2018-12-17T22:46:15.596336255Z 63 PC: 8f095 | Read file or device (Read 4 bytes on handle 5)
2018-12-17T22:46:15.604110272Z 66 PC: 8f0ad | Move file pointer
2018-12-17T22:46:15.606838238Z 62 PC: 8f0d1 | Close file
2018-12-17T22:46:15.609125613Z 75 PC: 8f0f2 | Execute program
2018-12-17T22:46:15.631932046Z 80 PC: 12be9 | Set current PSP
2018-12-17T22:46:15.63348933Z 48 PC: 12bee | Get DOS version
2018-12-17T22:46:15.635028488Z 99 PC: 193d0 | Get DBCS lead byte table pointer
2018-12-17T22:46:15.637478893Z 101 PC: 12c74 | Get extended country info
2018-12-17T22:46:15.639284367Z 99 PC: 12c7a | Get DBCS lead byte table pointer
2018-12-17T22:46:15.640892143Z 74 PC: 12cdc | Reallocate memory
2018-12-17T22:46:15.642650421Z 72 PC: 1355d | Allocate memory
2018-12-17T22:46:15.645309434Z 25 PC: 13596 | Get default drive
2018-12-17T22:46:15.646884731Z 71 PC: 135ad | Get current directory
2018-12-17T22:46:15.649835029Z 59 PC: 135ba | Change current directory
2018-12-17T22:46:15.656066254Z 59 PC: 135c8 | Change current directory
2018-12-17T22:46:15.662744668Z 59 PC: 135d3 | Change current directory
2018-12-17T22:46:15.666909937Z 25 PC: 12d13 | Get default drive
2018-12-17T22:46:15.66871279Z 37 PC: 127d3 | Set interrupt vector (Interrupt = '34' AKA 'Random write')
2018-12-17T22:46:15.671039017Z 37 PC: 127da | Set interrupt vector (Interrupt = '35' AKA 'Get file size in records')
2018-12-17T22:46:15.67256215Z 37 PC: 127e1 | Set interrupt vector (Interrupt = '36' AKA 'Set random record number')
2018-12-17T22:46:15.675445365Z 80 PC: 1301d | Set current PSP
2018-12-17T22:46:15.677489981Z 37 PC: 13041 | Set interrupt vector (Interrupt = '46' AKA 'Set verify flag')
2018-12-17T22:46:15.679183176Z 53 PC: 13362 | Get interrupt vector (Interrupt = '47' AKA 'Get disk transfer address')
2018-12-17T22:46:15.680776774Z 37 PC: 13383 | Set interrupt vector (Interrupt = '47' AKA 'Get disk transfer address')
2018-12-17T22:46:15.683337648Z 51 PC: 13417 | Get or set Ctrl-Break
2018-12-17T22:46:15.685777957Z 72 PC: 130ec | Allocate memory
2018-12-17T22:46:15.68810981Z 61 PC: 131b2 | Open file (Filename = '')
2018-12-17T22:46:15.695620664Z 62 PC: 131ba | Close file
2018-12-17T22:46:15.698046374Z 51 PC: 1344c | Get or set Ctrl-Break
2018-12-17T22:46:15.699282845Z 74 PC: 1197c | Reallocate memory
2018-12-17T22:46:15.701693923Z 72 PC: 11991 | Allocate memory
2018-12-17T22:46:15.703656941Z 73 PC: 119b2 | Release memory
2018-12-17T22:46:15.705145362Z 72 PC: 119bd | Allocate memory
2018-12-17T22:46:15.707888779Z 73 PC: 119df | Release memory
2018-12-17T22:46:15.70969498Z 72 PC: 119f5 | Allocate memory
2018-12-17T22:46:15.711855068Z 72 PC: 119fd | Allocate memory