Sample viewer

vx.netlux.org/Virus.DOS.Mayak.2339.a

.

GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T23:00:44.019896133Z 254 PC: 12e3f | UNKNOWN!
2018-12-17T23:00:44.021338607Z 42 PC: 12e89 | Get date 0x12e89: call 0x12f53
0x12e8c: mov word ptr [si + 0x917], ax
0x12e90: mov ax, 0x3d00
0x12e93: lea dx, word ptr [si + 0x4f0]
0x12e97: int3
0x12e98: mov bx, ax
0x12e9a: jae 0x12e9d
0x12e9c: ret
0x12e9d: mov ah, 0x3f
0x12e9f: lea dx, word ptr [si + 0x970]
0x12ea3: mov cx, 0x28
0x12ea6: int3
0x12ea7: and ax, ax
0x12ea9: jne 0x12eae
0x12eab: jmp 0x12f3b
0x12eae: mov cx, ax
0x12eb0: mov di, dx
0x12eb2: mov al, 0xd
0x12eb4: repne scasb al, byte ptr es:[di]
0x12eb6: jne 0x12e9d
2018-12-17T23:00:44.024050322Z 61 PC: 12e98 | Open file (Filename = 'c:\config.sys')
2018-12-17T23:00:44.031141778Z 63 PC: 12ea7 | Read file or device (Read 40 bytes on handle 5)
2018-12-17T23:00:44.038111337Z 66 PC: 12ec8 | Move file pointer
2018-12-17T23:00:44.048791356Z 63 PC: 12ea7 | Read file or device (Read 40 bytes on handle 5)
2018-12-17T23:00:44.051451096Z 66 PC: 12ec8 | Move file pointer
2018-12-17T23:00:44.053026989Z 63 PC: 12ea7 | Read file or device (Read 40 bytes on handle 5)
2018-12-17T23:00:44.056237427Z 66 PC: 12ec8 | Move file pointer
2018-12-17T23:00:44.05804608Z 61 PC: 12f2a | Open file (Filename = 'C:\WINDOWS\HIMEM.SYS')
2018-12-17T23:00:44.069962974Z 66 PC: 12fda | Move file pointer
2018-12-17T23:00:44.071794319Z 63 PC: 12ff8 | Read file or device (Read 6 bytes on handle 6)
2018-12-17T23:00:44.07679866Z 87 PC: 13029 | Get or set file date and time
2018-12-17T23:00:44.078184902Z 90 PC: 130a4 | Create unique file
2018-12-17T23:00:44.419535472Z 62 PC: 130ab | Close file
2018-12-17T23:00:44.421472911Z 65 PC: 130b0 | Delete file (Filename = 'c:\ABAKAIEC')
2018-12-17T23:00:44.429915365Z 63 PC: 130f7 | Read file or device (Read 2 bytes on handle 6)
2018-12-17T23:00:44.433415359Z 63 PC: 13101 | Read file or device (Read 2 bytes on handle 6)
2018-12-17T23:00:44.436074679Z 66 PC: 12fda | Move file pointer
2018-12-17T23:00:44.437464504Z 63 PC: 13112 | Read file or device (Read 5 bytes on handle 6)
2018-12-17T23:00:44.446584546Z 66 PC: 12fe3 | Move file pointer
2018-12-17T23:00:44.448665955Z 66 PC: 12fda | Move file pointer
2018-12-17T23:00:44.450833469Z 64 PC: 13131 | Write file or device (Write 2 bytes on handle 6)
2018-12-17T23:00:44.454673209Z 66 PC: 12fda | Move file pointer
2018-12-17T23:00:44.456705475Z 64 PC: 13142 | Write file or device (Write 5 bytes on handle 6)
2018-12-17T23:00:44.460398963Z 66 PC: 12fe3 | Move file pointer
2018-12-17T23:00:44.462045505Z 64 PC: 13044 | Write file or device (Write 2339 bytes on handle 6)
2018-12-17T23:00:44.473457193Z 87 PC: 131f1 | Get or set file date and time
2018-12-17T23:00:44.475627291Z 66 PC: 12fda | Move file pointer
2018-12-17T23:00:44.477542247Z 62 PC: 12f37 | Close file
2018-12-17T23:00:44.486136068Z 63 PC: 12ea7 | Read file or device (Read 40 bytes on handle 5)
2018-12-17T23:00:44.489038435Z 63 PC: 12ea7 | Read file or device (Read 40 bytes on handle 5)
2018-12-17T23:00:44.491813828Z 66 PC: 12ec8 | Move file pointer
2018-12-17T23:00:44.494175794Z 63 PC: 12ea7 | Read file or device (Read 40 bytes on handle 5)
2018-12-17T23:00:44.497106453Z 66 PC: 12ec8 | Move file pointer
2018-12-17T23:00:44.499592444Z 63 PC: 12ea7 | Read file or device (Read 40 bytes on handle 5)
2018-12-17T23:00:44.502401999Z 62 PC: 12f3e | Close file