Sample viewer

vx.netlux.org/Virus.DOS.Vienna.DearUser.1544

.

GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T22:59:43.544198788Z 48 PC: 12e7d | Get DOS version
2018-12-17T22:59:43.545752932Z 47 PC: 12ebe | Get disk transfer address
2018-12-17T22:59:43.54781698Z 26 PC: 12ecd | Set disk transfer address
2018-12-17T22:59:43.549267321Z 78 PC: 12f54 | Find first file
2018-12-17T22:59:43.557088242Z 79 PC: 12f5f | Find next file
2018-12-17T22:59:43.560513309Z 79 PC: 12f5f | Find next file
2018-12-17T22:59:43.563444957Z 79 PC: 12f5f | Find next file
2018-12-17T22:59:43.566382252Z 79 PC: 12f5f | Find next file
2018-12-17T22:59:43.569766059Z 79 PC: 12f5f | Find next file
2018-12-17T22:59:43.572991067Z 79 PC: 12f5f | Find next file
2018-12-17T22:59:43.576195271Z 79 PC: 12f5f | Find next file
2018-12-17T22:59:43.579882906Z 79 PC: 12f5f | Find next file
2018-12-17T22:59:43.582993321Z 78 PC: 12f54 | Find first file
2018-12-17T22:59:43.603089676Z 79 PC: 12f5f | Find next file
2018-12-17T22:59:43.60827348Z 67 PC: 12fb0 | Get or set file attributes
2018-12-17T22:59:43.617516416Z 67 PC: 12fc0 | Get or set file attributes
2018-12-17T22:59:43.969398951Z 61 PC: 12fca | Open file (Filename = 'C:\DOS\FORMAT.COM')
2018-12-17T22:59:43.979853498Z 87 PC: 12fd9 | Get or set file date and time
2018-12-17T22:59:43.98297456Z 44 PC: 12fe3 | Get time 0x12fe3: mov cx, 3
0x12fe6: mov ah, 0x3f
0x12fe8: mov dx, 0xa
0x12feb: add dx, si
0x12fed: push dx
0x12fee: int 0x21
0x12ff0: pop bp
0x12ff1: jb 0x13017
0x12ff3: cmp byte ptr [bp], 0x4d
0x12ff7: jne 0x13005
0x12ff9: cmp byte ptr [bp + 1], 0x5a
0x12ffd: je 0x13017
0x12fff: jmp 0x13005
0x13001: jmp 0x13053
0x13003: jmp 0x13051
0x13005: cmp ax, 3
0x13008: jne 0x13055
0x1300a: xor cx, cx
0x1300c: mov ax, 0x4202
0x1300f: xor dx, dx
2018-12-17T22:59:43.986333333Z 63 PC: 12ff0 | Read file or device (Read 3 bytes on handle 5)
2018-12-17T22:59:43.993261468Z 66 PC: 13013 | Move file pointer
2018-12-17T22:59:43.996411768Z 64 PC: 1306c | Write file or device (Write 1544 bytes on handle 5)
2018-12-17T22:59:44.005756847Z 66 PC: 1307c | Move file pointer
2018-12-17T22:59:44.011597293Z 64 PC: 1308a | Write file or device (Write 3 bytes on handle 5)
2018-12-17T22:59:44.022212237Z 87 PC: 1309b | Get or set file date and time
2018-12-17T22:59:44.024010318Z 62 PC: 1309f | Close file
2018-12-17T22:59:44.033163249Z 67 PC: 130ac | Get or set file attributes
2018-12-17T22:59:44.059150632Z 26 PC: 130b6 | Set disk transfer address
2018-12-17T22:59:44.060915981Z 22 PC: 13137 | Create or truncate file
2018-12-17T22:59:44.063712493Z 9 PC: 12a82 | Display string (String= 'Goat file (COM). Size=000003E8h/0000001000d bytes. ')
2018-12-17T22:59:44.070034122Z 76 PC: 12a86 | Terminate with return code (Return code = '36')