Sample viewer

vx.netlux.org/Virus.DOS.Slovakia.1056

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GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T23:05:43.753870451Z 48 PC: 12d21 | Get DOS version
2018-12-17T23:05:43.75564715Z 47 PC: 12d21 | Get disk transfer address
2018-12-17T23:05:43.757331154Z 26 PC: 12d21 | Set disk transfer address
2018-12-17T23:05:43.763516611Z 78 PC: 12d21 | Find first file
2018-12-17T23:05:43.770535704Z 67 PC: 12d21 | Get or set file attributes
2018-12-17T23:05:43.777161702Z 67 PC: 12d21 | Get or set file attributes
2018-12-17T23:05:43.795851996Z 61 PC: 12d21 | Open file (Filename = 'SLEEP.COM')
2018-12-17T23:05:43.803813197Z 87 PC: 12d21 | Get or set file date and time
2018-12-17T23:05:43.80586814Z 63 PC: 12d21 | Read file or device (Read 3 bytes on handle 5)
2018-12-17T23:05:43.814441039Z 66 PC: 12d21 | Move file pointer
2018-12-17T23:05:43.816247029Z 44 PC: 12d21 | Get time 0x12d21: ret
0x12d22: mov si, di
0x12d24: mov ah, 1
0x12d26: lodsb al, byte ptr [si]
0x12d27: xor al, ah
0x12d29: add ah, 0x11
0x12d2c: stosb byte ptr es:[di], al
0x12d2d: loop 0x12d26
0x12d2f: ret
0x12d30: mov di, dx
0x12d32: sub di, 0x252
0x12d36: mov cx, 0x175
0x12d39: call 0x22d22
0x12d3c: mov di, dx
0x12d3e: mov cx, 0x865
0x12d41: call 0x22d22
0x12d44: ret
0x12d45: push dx
0x12d46: push cx
0x12d47: mov ah, 0x2c
2018-12-17T23:05:43.818684655Z 64 PC: 12d21 | Write file or device (Write 31 bytes on handle 5)
2018-12-17T23:05:43.822588931Z 44 PC: 12d21 | Get time 0x12d21: ret
0x12d22: mov si, di
0x12d24: mov ah, 1
0x12d26: lodsb al, byte ptr [si]
0x12d27: xor al, ah
0x12d29: add ah, 0x11
0x12d2c: stosb byte ptr es:[di], al
0x12d2d: loop 0x12d26
0x12d2f: ret
0x12d30: mov di, dx
0x12d32: sub di, 0x252
0x12d36: mov cx, 0x175
0x12d39: call 0x22d22
0x12d3c: mov di, dx
0x12d3e: mov cx, 0x865
0x12d41: call 0x22d22
0x12d44: ret
0x12d45: push dx
0x12d46: push cx
0x12d47: mov ah, 0x2c
2018-12-17T23:05:43.825616214Z 64 PC: 12d21 | Write file or device (Write 1712 bytes on handle 5)
2018-12-17T23:05:43.835670641Z 66 PC: 12d21 | Move file pointer
2018-12-17T23:05:43.837263081Z 64 PC: 12d21 | Write file or device (Write 3 bytes on handle 5)
2018-12-17T23:05:43.845714984Z 87 PC: 12d21 | Get or set file date and time
2018-12-17T23:05:43.847735731Z 62 PC: 12d21 | Close file
2018-12-17T23:05:43.856847327Z 67 PC: 12d21 | Get or set file attributes
2018-12-17T23:05:43.868775906Z 26 PC: 12d21 | Set disk transfer address