Sample viewer

vx.netlux.org/Virus.DOS.Nono.1510

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GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T22:44:56.374512006Z 111 PC: 12d42 | UNKNOWN!
2018-12-17T22:44:56.376003487Z 61 PC: 1302d | Open file (Filename = 'C:\COMMAND.COM')
2018-12-17T22:44:56.386113816Z 42 PC: 1302d | Get date 0x1302d: ret
0x1302e: mov al, 0
0x13030: call 0x2301d
0x13033: mov dx, 0x100
0x13036: cmp byte ptr [0x4e6], 1
0x1303b: je 0x13040
0x1303d: mov dx, 0x690
0x13040: mov cx, 0x1c
0x13043: call 0x23017
0x13046: ret
0x13047: mov cx, word ptr [0x326]
0x1304b: mov dx, 0x100
0x1304e: cmp byte ptr [0x4e6], 1
0x13053: jne 0x13058
0x13055: mov dx, 0x12c
0x13058: sub dx, word ptr [0x708]
0x1305c: sub cx, dx
0x1305e: call 0x23017
0x13061: ret
0x13062: mov cx, ax
2018-12-17T22:44:56.388891353Z 87 PC: 1302d | Get or set file date and time
2018-12-17T22:44:56.390573111Z 62 PC: 1302d | Close file
2018-12-17T22:44:56.394394819Z 111 PC: 12d42 | UNKNOWN!
2018-12-17T22:44:56.39565191Z 61 PC: 1302d | Open file (Filename = 'C:\COMMAND.COM')
2018-12-17T22:44:56.404818236Z 42 PC: 1302d | Get date 0x1302d: ret
0x1302e: mov al, 0
0x13030: call 0x2301d
0x13033: mov dx, 0x100
0x13036: cmp byte ptr [0x4e6], 1
0x1303b: je 0x13040
0x1303d: mov dx, 0x690
0x13040: mov cx, 0x1c
0x13043: call 0x23017
0x13046: ret
0x13047: mov cx, word ptr [0x326]
0x1304b: mov dx, 0x100
0x1304e: cmp byte ptr [0x4e6], 1
0x13053: jne 0x13058
0x13055: mov dx, 0x12c
0x13058: sub dx, word ptr [0x708]
0x1305c: sub cx, dx
0x1305e: call 0x23017
0x13061: ret
0x13062: mov cx, ax
2018-12-17T22:44:56.408818608Z 87 PC: 1302d | Get or set file date and time
2018-12-17T22:44:56.411886651Z 62 PC: 1302d | Close file
2018-12-17T22:44:56.41475596Z 74 PC: 1302d | Reallocate memory
2018-12-17T22:44:56.418500613Z 72 PC: 1302d | Allocate memory