Sample viewer

vx.netlux.org/Virus.DOS.Nostardamus.3072.d

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GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T22:47:20.49278413Z 240 PC: 13a01 | UNKNOWN!
2018-12-17T22:47:20.497527627Z 42 PC: 14086 | Get date 0x14086: inc al
0x14088: shl al, 1
0x1408a: cmp dl, al
0x1408c: jne 0x140c1
0x1408e: mov ah, 0x13
0x14090: int 0x2f
0x14092: push ds
0x14093: push dx
0x14094: mov ah, 0x13
0x14096: int 0x2f
0x14098: pop dx
0x14099: pop ds
0x1409a: mov ax, 0x2513
0x1409d: int 0x21
0x1409f: mov cx, 1
0x140a2: mov dx, 0x580
0x140a5: mov ax, 0x308
0x140a8: int 0x13
0x140aa: jb 0x140b9
0x140ac: dec dh

{"DateBased":true,"Day":1,"Month":1,"Year":1980,"Hour":0,"Min":0,"Second":0,"TimeBased":false,"OriginalID":9187,"SideJobID":0}

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GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-25T12:22:40.713283908Z 240 PC: 13a01 | UNKNOWN!
2018-12-25T12:22:40.716206788Z 42 PC: 14086 | Get date 0x14086: inc al
0x14088: shl al, 1
0x1408a: cmp dl, al
0x1408c: jne 0x140c1
0x1408e: mov ah, 0x13
0x14090: int 0x2f
0x14092: push ds
0x14093: push dx
0x14094: mov ah, 0x13
0x14096: int 0x2f
0x14098: pop dx
0x14099: pop ds
0x1409a: mov ax, 0x2513
0x1409d: int 0x21
0x1409f: mov cx, 1
0x140a2: mov dx, 0x580
0x140a5: mov ax, 0x308
0x140a8: int 0x13
0x140aa: jb 0x140b9
0x140ac: dec dh

{"DateBased":true,"Day":10,"Month":1,"Year":1980,"Hour":0,"Min":0,"Second":0,"TimeBased":false,"OriginalID":9187,"SideJobID":0}

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GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-25T12:22:40.725108146Z 240 PC: 13a01 | UNKNOWN!
2018-12-25T12:22:40.726713203Z 42 PC: 14086 | Get date 0x14086: inc al
0x14088: shl al, 1
0x1408a: cmp dl, al
0x1408c: jne 0x140c1
0x1408e: mov ah, 0x13
0x14090: int 0x2f
0x14092: push ds
0x14093: push dx
0x14094: mov ah, 0x13
0x14096: int 0x2f
0x14098: pop dx
0x14099: pop ds
0x1409a: mov ax, 0x2513
0x1409d: int 0x21
0x1409f: mov cx, 1
0x140a2: mov dx, 0x580
0x140a5: mov ax, 0x308
0x140a8: int 0x13
0x140aa: jb 0x140b9
0x140ac: dec dh
2018-12-25T12:22:40.728368773Z 37 PC: 1409f | Set interrupt vector (Interrupt = '19' AKA 'Delete file')