Sample viewer

vx.netlux.org/Trojan.DOS.FormatC.d

.

GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T22:38:35.273682341Z 72 PC: 8f1b9 | Allocate memory
2018-12-17T22:38:35.277643993Z 72 PC: 8f1bd | Allocate memory
2018-12-17T22:38:35.281878411Z 99 PC: 90858 | Get DBCS lead byte table pointer
2018-12-17T22:38:35.298500013Z 61 PC: 91f88 | Open file (Filename = 'C:\WINDOWS\HIMEM.SYS')
2018-12-17T22:38:35.342574791Z 66 PC: 91f95 | Move file pointer
2018-12-17T22:38:35.345516061Z 62 PC: 91fc1 | Close file
2018-12-17T22:38:35.348883892Z 75 PC: 91fe0 | Execute program
2018-12-17T22:38:35.386354258Z 98 PC: 916f1 | Get current PSP
2018-12-17T22:38:35.38925535Z 9 PC: c605 | Display string (String= '6��r�&;] u')
2018-12-17T22:38:35.414807141Z 48 PC: c609 | Get DOS version
2018-12-17T22:38:35.42023036Z 9 PC: c382 | Display string (String= ' Installed A20 handler number ')
2018-12-17T22:38:35.425668662Z 2 PC: c38c | Character output (Char = '32')
2018-12-17T22:38:35.428542017Z 2 PC: c3a7 | Character output (Char = '2e')
2018-12-17T22:38:35.432907986Z 9 PC: c6d9 | Display string (String= '�����VH�VD���V@��������������_���Ku��t1��������D�����t �� ��������a1��Z�����W���� ������5���|�����(���������Nj�(��������p�^')
2018-12-17T22:38:35.44793423Z 9 PC: c6e0 | Display string (String= '�5���|�����(���������Nj�(��������p�^')
2018-12-17T22:38:35.470844372Z 61 PC: 91f88 | Open file (Filename = 'C:\WINDOWS\SMARTDRV.EXE')
2018-12-17T22:38:35.504901948Z 66 PC: 91f95 | Move file pointer
2018-12-17T22:38:35.507542484Z 62 PC: 91fc1 | Close file
2018-12-17T22:38:35.510139253Z 75 PC: 91fe0 | Execute program
2018-12-17T22:38:35.562928621Z 98 PC: 916f1 | Get current PSP
2018-12-17T22:38:35.575254688Z 82 PC: 13d46 | Get DOS internal pointers (SYSVARS)
2018-12-17T22:38:35.577333831Z 53 PC: 13ac3 | Get interrupt vector (Interrupt = '19' AKA 'Delete file')
2018-12-17T22:38:35.579274537Z 37 PC: 13ad6 | Set interrupt vector (Interrupt = '19' AKA 'Delete file')
2018-12-17T22:38:35.581351723Z 53 PC: 13ae0 | Get interrupt vector (Interrupt = '47' AKA 'Get disk transfer address')
2018-12-17T22:38:35.587337451Z 37 PC: 13af3 | Set interrupt vector (Interrupt = '47' AKA 'Get disk transfer address')
2018-12-17T22:38:35.589269256Z 9 PC: 13a0d | Display string (Could not find end pointer)
2018-12-17T22:38:35.610685089Z 62 PC: 8f8eb | Close file
2018-12-17T22:38:35.624831662Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.626989191Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.628831765Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.632006753Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.633981645Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.636036167Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.642296665Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.653659883Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.655704042Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.658298933Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.660742833Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.663898592Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.667754558Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.67573259Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.677476833Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.691763017Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.693772951Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.695587822Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.697290235Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.69982122Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.701776373Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.703695707Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.707347679Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.718132513Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.720547982Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.723348561Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.725435621Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.727364334Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.730331887Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.732391057Z 62 PC: 8f8f2 | Close file
2018-12-17T22:38:35.734557127Z 61 PC: 8f8ff | Open file (Filename = '')
2018-12-17T22:38:35.74192848Z 62 PC: 8f90e | Close file
2018-12-17T22:38:35.745073971Z 69 PC: 8f915 | Duplicate handle
2018-12-17T22:38:35.747391787Z 69 PC: 8f919 | Duplicate handle
2018-12-17T22:38:35.74959528Z 61 PC: 9387b | Open file (Filename = '')
2018-12-17T22:38:35.759405344Z 68 PC: 9386b | I/O control for devices (Set for = '')
2018-12-17T22:38:35.76183995Z 61 PC: 9387b | Open file (Filename = '')
2018-12-17T22:38:35.767536234Z 68 PC: 9386b | I/O control for devices (Set for = '')
2018-12-17T22:38:35.770790761Z 74 PC: 8f9c4 | Reallocate memory
2018-12-17T22:38:35.772764499Z 72 PC: 8f9e0 | Allocate memory
2018-12-17T22:38:35.775021452Z 72 PC: 8f9e4 | Allocate memory
2018-12-17T22:38:35.777959094Z 74 PC: 8f9fb | Reallocate memory
2018-12-17T22:38:35.780022088Z 72 PC: 8fa02 | Allocate memory
2018-12-17T22:38:35.782311045Z 72 PC: 8fa06 | Allocate memory
2018-12-17T22:38:35.785155494Z 73 PC: 8fa11 | Release memory
2018-12-17T22:38:35.788456497Z 73 PC: 8efea | Release memory
2018-12-17T22:38:35.790725559Z 74 PC: 8f003 | Reallocate memory
2018-12-17T22:38:35.792905369Z 72 PC: 8f054 | Allocate memory
2018-12-17T22:38:35.8021297Z 72 PC: 8f058 | Allocate memory
2018-12-17T22:38:35.814542284Z 73 PC: 8f060 | Release memory
2018-12-17T22:38:35.816104039Z 61 PC: 8f080 | Open file (Filename = 'r,�S�������[�
2018-12-17T22:38:35.837589502Z 63 PC: 8f095 | Read file or device (Read 4 bytes on handle 5)
2018-12-17T22:38:35.844275227Z 66 PC: 8f0ad | Move file pointer
2018-12-17T22:38:35.845998268Z 62 PC: 8f0d1 | Close file
2018-12-17T22:38:35.855028351Z 75 PC: 8f0f2 | Execute program
2018-12-17T22:38:35.922957786Z 80 PC: 12be9 | Set current PSP
2018-12-17T22:38:35.9244531Z 48 PC: 12bee | Get DOS version
2018-12-17T22:38:35.927325845Z 99 PC: 193d0 | Get DBCS lead byte table pointer
2018-12-17T22:38:35.930794033Z 101 PC: 12c74 | Get extended country info
2018-12-17T22:38:35.932647511Z 99 PC: 12c7a | Get DBCS lead byte table pointer
2018-12-17T22:38:35.935269226Z 74 PC: 12cdc | Reallocate memory
2018-12-17T22:38:35.937502377Z 72 PC: 1355d | Allocate memory
2018-12-17T22:38:35.93960515Z 25 PC: 13596 | Get default drive
2018-12-17T22:38:35.942752617Z 71 PC: 135ad | Get current directory
2018-12-17T22:38:35.961188765Z 59 PC: 135ba | Change current directory
2018-12-17T22:38:35.967046526Z 59 PC: 135c8 | Change current directory
2018-12-17T22:38:35.983717991Z 59 PC: 135d3 | Change current directory
2018-12-17T22:38:35.988348672Z 25 PC: 12d13 | Get default drive
2018-12-17T22:38:35.989751942Z 37 PC: 127d3 | Set interrupt vector (Interrupt = '34' AKA 'Random write')
2018-12-17T22:38:35.991100283Z 37 PC: 127da | Set interrupt vector (Interrupt = '35' AKA 'Get file size in records')
2018-12-17T22:38:35.993497552Z 37 PC: 127e1 | Set interrupt vector (Interrupt = '36' AKA 'Set random record number')
2018-12-17T22:38:35.995959969Z 80 PC: 1301d | Set current PSP
2018-12-17T22:38:35.996967496Z 37 PC: 13041 | Set interrupt vector (Interrupt = '46' AKA 'Set verify flag')
2018-12-17T22:38:36.011404991Z 53 PC: 13362 | Get interrupt vector (Interrupt = '47' AKA 'Get disk transfer address')
2018-12-17T22:38:36.013626771Z 37 PC: 13383 | Set interrupt vector (Interrupt = '47' AKA 'Get disk transfer address')
2018-12-17T22:38:36.015052075Z 51 PC: 13417 | Get or set Ctrl-Break
2018-12-17T22:38:36.018442897Z 72 PC: 130ec | Allocate memory
2018-12-17T22:38:36.020486236Z 61 PC: 131b2 | Open file (Filename = '')
2018-12-17T22:38:36.038580591Z 62 PC: 131ba | Close file
2018-12-17T22:38:36.040930498Z 51 PC: 1344c | Get or set Ctrl-Break
2018-12-17T22:38:36.042821332Z 74 PC: 1197c | Reallocate memory
2018-12-17T22:38:36.044428917Z 72 PC: 11991 | Allocate memory
2018-12-17T22:38:36.046375456Z 73 PC: 119b2 | Release memory
2018-12-17T22:38:36.048547105Z 72 PC: 119bd | Allocate memory
2018-12-17T22:38:36.050579372Z 73 PC: 119df | Release memory
2018-12-17T22:38:36.052379156Z 72 PC: 119f5 | Allocate memory
2018-12-17T22:38:36.055478303Z 72 PC: 119fd | Allocate memory