Sample viewer

vx.netlux.org/Virus.DOS.HLLC.Unvisible.d

.

GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T22:55:40.941613373Z 48 PC: 12a4c | Get DOS version
2018-12-17T22:55:40.943902339Z 53 PC: 12b75 | Get interrupt vector (Interrupt = '0' AKA 'Program terminate')
2018-12-17T22:55:40.959674862Z 53 PC: 12b82 | Get interrupt vector (Interrupt = '4' AKA 'Auxiliary output')
2018-12-17T22:55:40.961212234Z 53 PC: 12b8f | Get interrupt vector (Interrupt = '5' AKA 'Printer output')
2018-12-17T22:55:40.964304497Z 53 PC: 12b9c | Get interrupt vector (Interrupt = '6' AKA 'Direct console I/O')
2018-12-17T22:55:40.966125397Z 37 PC: 12bb0 | Set interrupt vector (Interrupt = '0' AKA 'Program terminate')
2018-12-17T22:55:40.968124339Z 74 PC: 12af4 | Reallocate memory
2018-12-17T22:55:40.971114405Z 74 PC: 13f9d | Reallocate memory
2018-12-17T22:55:40.97372058Z 42 PC: 16a97 | Get date 0x16a97: les bx, ptr [bp + 6]
0x16a9a: mov word ptr es:[bx], cx
0x16a9d: les bx, ptr [bp + 6]
0x16aa0: mov word ptr es:[bx + 2], dx
0x16aa4: pop bp
0x16aa5: retf
0x16aa6: push bp
0x16aa7: mov bp, sp
0x16aa9: mov ah, 0x2c
0x16aab: int 0x21
0x16aad: les bx, ptr [bp + 6]
0x16ab0: mov word ptr es:[bx], cx
0x16ab3: les bx, ptr [bp + 6]
0x16ab6: mov word ptr es:[bx + 2], dx
0x16aba: pop bp
0x16abb: retf
0x16abc: push bp
0x16abd: mov bp, sp
0x16abf: sub sp, 4
0x16ac2: push si
2018-12-17T22:55:40.976171181Z 44 PC: 16aad | Get time 0x16aad: les bx, ptr [bp + 6]
0x16ab0: mov word ptr es:[bx], cx
0x16ab3: les bx, ptr [bp + 6]
0x16ab6: mov word ptr es:[bx + 2], dx
0x16aba: pop bp
0x16abb: retf
0x16abc: push bp
0x16abd: mov bp, sp
0x16abf: sub sp, 4
0x16ac2: push si
0x16ac3: push di
0x16ac4: les di, ptr [bp + 6]
0x16ac7: mov ax, es
0x16ac9: or ax, di
0x16acb: je 0x16aed
0x16acd: mov al, 0
0x16acf: mov ah, byte ptr es:[di]
0x16ad2: mov cx, 0xffff
0x16ad5: cld
0x16ad6: repne scasb al, byte ptr es:[di]
2018-12-17T22:55:40.981961171Z 74 PC: 13f9d | Reallocate memory
2018-12-17T22:55:40.984926248Z 61 PC: 14443 | Open file (Filename = '��>~�')
2018-12-17T22:55:40.991723345Z 68 PC: 1481a | I/O control for devices (Set for = 'Divide error Abnormal program termination W�')
2018-12-17T22:55:41.002593266Z 68 PC: 1483e | I/O control for devices (Set for = '')
2018-12-17T22:55:41.005039054Z 74 PC: 13f9d | Reallocate memory
2018-12-17T22:55:41.010738004Z 63 PC: 14d8a | Read file or device (Read 14336 bytes on handle 5)
2018-12-17T22:55:41.019561409Z 63 PC: 14d8a | Read file or device (Read 512 bytes on handle 5)
2018-12-17T22:55:41.027118565Z 74 PC: 13f9d | Reallocate memory
2018-12-17T22:55:41.029199867Z 62 PC: 14a9b | Close file
2018-12-17T22:55:41.032074266Z 25 PC: 16134 | Get default drive
2018-12-17T22:55:41.033600507Z 42 PC: 16a97 | Get date 0x16a97: les bx, ptr [bp + 6]
0x16a9a: mov word ptr es:[bx], cx
0x16a9d: les bx, ptr [bp + 6]
0x16aa0: mov word ptr es:[bx + 2], dx
0x16aa4: pop bp
0x16aa5: retf
0x16aa6: push bp
0x16aa7: mov bp, sp
0x16aa9: mov ah, 0x2c
0x16aab: int 0x21
0x16aad: les bx, ptr [bp + 6]
0x16ab0: mov word ptr es:[bx], cx
0x16ab3: les bx, ptr [bp + 6]
0x16ab6: mov word ptr es:[bx + 2], dx
0x16aba: pop bp
0x16abb: retf
0x16abc: push bp
0x16abd: mov bp, sp
0x16abf: sub sp, 4
0x16ac2: push si
2018-12-17T22:55:41.036085985Z 44 PC: 16aad | Get time 0x16aad: les bx, ptr [bp + 6]
0x16ab0: mov word ptr es:[bx], cx
0x16ab3: les bx, ptr [bp + 6]
0x16ab6: mov word ptr es:[bx + 2], dx
0x16aba: pop bp
0x16abb: retf
0x16abc: push bp
0x16abd: mov bp, sp
0x16abf: sub sp, 4
0x16ac2: push si
0x16ac3: push di
0x16ac4: les di, ptr [bp + 6]
0x16ac7: mov ax, es
0x16ac9: or ax, di
0x16acb: je 0x16aed
0x16acd: mov al, 0
0x16acf: mov ah, byte ptr es:[di]
0x16ad2: mov cx, 0xffff
0x16ad5: cld
0x16ad6: repne scasb al, byte ptr es:[di]
2018-12-17T22:55:41.040802887Z 74 PC: 13f9d | Reallocate memory
2018-12-17T22:55:41.042985435Z 14 PC: 16143 | Set default drive (Drive = 'A')
2018-12-17T22:55:41.045314472Z 59 PC: 1611f | Change current directory
2018-12-17T22:55:41.051961979Z 26 PC: 166c1 | Set disk transfer address
2018-12-17T22:55:41.053998253Z 78 PC: 166cb | Find first file
2018-12-17T22:55:41.060629738Z 37 PC: 12bbc | Set interrupt vector (Interrupt = '0' AKA 'Program terminate')
2018-12-17T22:55:41.062333504Z 37 PC: 12bc7 | Set interrupt vector (Interrupt = '4' AKA 'Auxiliary output')
2018-12-17T22:55:41.065732781Z 37 PC: 12bd2 | Set interrupt vector (Interrupt = '5' AKA 'Printer output')
2018-12-17T22:55:41.066752305Z 37 PC: 12bdd | Set interrupt vector (Interrupt = '6' AKA 'Direct console I/O')
2018-12-17T22:55:41.067769864Z 76 PC: 12b65 | Terminate with return code (Return code = '1')