Sample viewer

vx.netlux.org/Trojan.DOS.KillFiles.o

.

GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T21:58:49.089389594Z 53 PC: 1347a | Get interrupt vector (Interrupt = '0' AKA 'Program terminate')
2018-12-17T21:58:49.091623431Z 53 PC: 1347a | Get interrupt vector (Interrupt = '2' AKA 'Character output')
2018-12-17T21:58:49.093137505Z 53 PC: 1347a | Get interrupt vector (Interrupt = '27' AKA 'Get allocation info for default drive')
2018-12-17T21:58:49.094633474Z 53 PC: 1347a | Get interrupt vector (Interrupt = '33' AKA 'Random read')
2018-12-17T21:58:49.096738954Z 53 PC: 1347a | Get interrupt vector (Interrupt = '35' AKA 'Get file size in records')
2018-12-17T21:58:49.098100672Z 53 PC: 1347a | Get interrupt vector (Interrupt = '36' AKA 'Set random record number')
2018-12-17T21:58:49.099200714Z 53 PC: 1347a | Get interrupt vector (Interrupt = '52' AKA 'Get InDOS flag pointer')
2018-12-17T21:58:49.10282794Z 53 PC: 1347a | Get interrupt vector (Interrupt = '53' AKA 'Get interrupt vector')
2018-12-17T21:58:49.104428622Z 53 PC: 1347a | Get interrupt vector (Interrupt = '54' AKA 'Get free disk space')
2018-12-17T21:58:49.105813421Z 53 PC: 1347a | Get interrupt vector (Interrupt = '55' AKA 'Get or set switch character')
2018-12-17T21:58:49.107857471Z 53 PC: 1347a | Get interrupt vector (Interrupt = '56' AKA 'Get or set country info')
2018-12-17T21:58:49.110905773Z 53 PC: 1347a | Get interrupt vector (Interrupt = '57' AKA 'Create subdirectory')
2018-12-17T21:58:49.114281898Z 53 PC: 1347a | Get interrupt vector (Interrupt = '58' AKA 'Remove subdirectory')
2018-12-17T21:58:49.116446736Z 53 PC: 1347a | Get interrupt vector (Interrupt = '59' AKA 'Change current directory')
2018-12-17T21:58:49.119148731Z 53 PC: 1347a | Get interrupt vector (Interrupt = '60' AKA 'Create or truncate file')
2018-12-17T21:58:49.121535533Z 53 PC: 1347a | Get interrupt vector (Interrupt = '61' AKA 'Open file')
2018-12-17T21:58:49.124319857Z 53 PC: 1347a | Get interrupt vector (Interrupt = '62' AKA 'Close file')
2018-12-17T21:58:49.127530501Z 53 PC: 1347a | Get interrupt vector (Interrupt = '63' AKA 'Read file or device')
2018-12-17T21:58:49.130008264Z 53 PC: 1347a | Get interrupt vector (Interrupt = '117' AKA 'UNKNOWN!')
2018-12-17T21:58:49.131528438Z 37 PC: 1348f | Set interrupt vector (Interrupt = '0' AKA 'Program terminate')
2018-12-17T21:58:49.133311447Z 37 PC: 13497 | Set interrupt vector (Interrupt = '35' AKA 'Get file size in records')
2018-12-17T21:58:49.134518421Z 37 PC: 1349f | Set interrupt vector (Interrupt = '36' AKA 'Set random record number')
2018-12-17T21:58:49.136788105Z 37 PC: 134a7 | Set interrupt vector (Interrupt = '63' AKA 'Read file or device')
2018-12-17T21:58:49.139500428Z 68 PC: 13dad | I/O control for devices (Set for = '')
2018-12-17T21:58:49.294933629Z 37 PC: 12e9c | Set interrupt vector (Interrupt = '27' AKA 'Get allocation info for default drive')
2018-12-17T21:58:49.296419672Z 44 PC: 13ee4 | Get time 0x13ee4: mov word ptr [0x3e], cx
0x13ee8: mov word ptr [0x40], dx
0x13eec: retf
0x13eed: mov di, 0x52
0x13ef0: push ds
0x13ef1: pop es
0x13ef2: mov cx, 0x4b8
0x13ef5: sub cx, di
0x13ef7: shr cx, 1
0x13ef9: xor ax, ax
0x13efb: cld
0x13efc: rep stosd dword ptr es:[di], eax
0x13efe: ret
0x13eff: add byte ptr [bx + si], al
0x13f01: add byte ptr [bx + si], al
0x13f03: add byte ptr [bx + si], al
0x13f05: add byte ptr [bx + si], al
0x13f07: add byte ptr [bx + si], al
0x13f09: add byte ptr [si], bh
0x13f0b: sbb byte ptr [si], bh
2018-12-17T21:58:49.298667814Z 67 PC: 12dd6 | Get or set file attributes
2018-12-17T21:58:49.848682275Z 61 PC: 13d91 | Open file (Filename = 'c:\msdos.sys')
2018-12-17T21:58:49.855208231Z 62 PC: 138b2 | Close file
2018-12-17T21:58:49.857089911Z 61 PC: 13d91 | Open file (Filename = 'c:\msdos.sys')
2018-12-17T21:58:49.863020595Z 68 PC: 13dad | I/O control for devices (Set for = '')
2018-12-17T21:58:49.865825178Z 66 PC: 13dfc | Move file pointer
2018-12-17T21:58:49.867732408Z 66 PC: 13e13 | Move file pointer
2018-12-17T21:58:49.869716128Z 63 PC: 13e20 | Read file or device (Read 128 bytes on handle 5)
2018-12-17T21:58:49.877013115Z 66 PC: 13e42 | Move file pointer
2018-12-17T21:58:49.878360713Z 64 PC: 13e4a | Write file or device (Write 0 bytes on handle 5)
2018-12-17T21:58:49.883062663Z 64 PC: 13873 | Write file or device (Write 128 bytes on handle 5)
2018-12-17T21:58:49.886090915Z 64 PC: 13873 | Write file or device (Write 95 bytes on handle 5)
2018-12-17T21:58:49.889458125Z 62 PC: 138b2 | Close file
2018-12-17T21:58:49.899437488Z 67 PC: 12dd6 | Get or set file attributes