Sample viewer

vx.netlux.org/Virus.DOS.CyberTech.268

.

GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T23:05:15.101341475Z 26 PC: 12e59 | Set disk transfer address
2018-12-17T23:05:15.102912199Z 78 PC: 12e63 | Find first file
2018-12-17T23:05:15.111256661Z 67 PC: 12e70 | Get or set file attributes
2018-12-17T23:05:15.118003138Z 67 PC: 12e78 | Get or set file attributes
2018-12-17T23:05:15.13632959Z 61 PC: 12e7d | Open file (Filename = 'SLEEP.COM')
2018-12-17T23:05:15.146355594Z 87 PC: 12e83 | Get or set file date and time
2018-12-17T23:05:15.148601307Z 63 PC: 12e90 | Read file or device (Read 4 bytes on handle 5)
2018-12-17T23:05:15.157000241Z 66 PC: 12eb6 | Move file pointer
2018-12-17T23:05:15.159954947Z 44 PC: 12ec9 | Get time 0x12ec9: mov byte ptr cs:[bp + 0x17], dl
0x12ecd: lea si, word ptr [bp + 4]
0x12ed0: mov di, 0xfd00
0x12ed3: mov cx, 0x17
0x12ed6: rep movsb byte ptr es:[di], byte ptr [si]
0x12ed8: lea si, word ptr [bp + 0x1b]
0x12edb: mov cx, 0xf5
0x12ede: lodsb al, byte ptr [si]
0x12edf: xor al, dl
0x12ee1: stosb byte ptr es:[di], al
0x12ee2: loop 0x12ede
0x12ee4: mov ah, 0x40
0x12ee6: mov dx, 0xfd00
0x12ee9: mov cx, 0x10c
0x12eec: int 0x21
0x12eee: mov ax, 0x4200
0x12ef1: call 0x22eb0
0x12ef4: mov ah, 0x40
0x12ef6: lea dx, word ptr [bp + 0x103]
0x12efa: mov cx, 4
2018-12-17T23:05:15.165087118Z 64 PC: 12eee | Write file or device (Write 268 bytes on handle 5)
2018-12-17T23:05:15.17393183Z 66 PC: 12eb6 | Move file pointer
2018-12-17T23:05:15.176733729Z 64 PC: 12eff | Write file or device (Write 4 bytes on handle 5)
2018-12-17T23:05:15.184528548Z 87 PC: 12f18 | Get or set file date and time
2018-12-17T23:05:15.186833893Z 62 PC: 12f1c | Close file
2018-12-17T23:05:15.196695657Z 67 PC: 12f25 | Get or set file attributes
2018-12-17T23:05:15.210163393Z 26 PC: 12f09 | Set disk transfer address