Sample viewer

vx.netlux.org/Virus.DOS.BlackJec.374.c

.

GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T21:54:02.978909619Z 42 PC: 12a7c | Get date 0x12a7c: mov word ptr [0xf2], dx
0x12a80: mov word ptr [0xf4], cx
0x12a84: stc
0x12a85: lea dx, word ptr [0x26d]
0x12a89: mov ah, 0x4e
0x12a8b: mov cx, 0x20
0x12a8e: int 0x21
0x12a90: or ax, ax
0x12a92: je 0x12a97
0x12a94: jmp 0x12b6c
0x12a97: mov ah, 0x2f
0x12a99: int 0x21
0x12a9b: mov ax, word ptr es:[bx + 0x1a]
0x12a9f: mov word ptr [0xfc], ax
0x12aa2: add bx, 0x1e
0x12aa5: mov word ptr [0xfe], bx
0x12aa9: mov ax, 0x4f43
0x12aac: sub ax, word ptr [0x9e]
0x12ab0: jne 0x12ab5
0x12ab2: jmp 0x12b60
2018-12-17T21:54:02.9808285Z 78 PC: 12a90 | Find first file
2018-12-17T21:54:02.986653967Z 47 PC: 12a9b | Get disk transfer address
2018-12-17T21:54:02.987675255Z 43 PC: 12af1 | Set date
2018-12-17T21:54:02.997469583Z 61 PC: 12af9 | Open file (Filename = 'SLEEP.COM')
2018-12-17T21:54:03.008610848Z 63 PC: 12b07 | Read file or device (Read 407 bytes on handle 5)
2018-12-17T21:54:03.014993661Z 60 PC: 12b44 | Create or truncate file
2018-12-17T21:54:03.033561259Z 64 PC: 12b56 | Write file or device (Write 781 bytes on handle 6)
2018-12-17T21:54:03.039511027Z 62 PC: 12b5a | Close file
2018-12-17T21:54:03.045036356Z 79 PC: 12b65 | Find next file
2018-12-17T21:54:03.058112644Z 47 PC: 12a9b | Get disk transfer address
2018-12-17T21:54:03.059006542Z 43 PC: 12af1 | Set date
2018-12-17T21:54:03.061329792Z 61 PC: 12af9 | Open file (Filename = 'PRINT.COM')
2018-12-17T21:54:03.068923173Z 63 PC: 12b07 | Read file or device (Read 27 bytes on handle 6)
2018-12-17T21:54:03.073299033Z 60 PC: 12b44 | Create or truncate file
2018-12-17T21:54:03.081067774Z 64 PC: 12b56 | Write file or device (Write 401 bytes on handle 7)
2018-12-17T21:54:03.083437348Z 62 PC: 12b5a | Close file
2018-12-17T21:54:03.089020273Z 79 PC: 12b65 | Find next file
2018-12-17T21:54:03.091064166Z 47 PC: 12a9b | Get disk transfer address
2018-12-17T21:54:03.091940804Z 43 PC: 12af1 | Set date
2018-12-17T21:54:03.094845861Z 61 PC: 12af9 | Open file (Filename = 'HELLO.COM')
2018-12-17T21:54:03.104584127Z 63 PC: 12b07 | Read file or device (Read 92 bytes on handle 7)
2018-12-17T21:54:03.111622145Z 60 PC: 12b44 | Create or truncate file
2018-12-17T21:54:03.124309168Z 64 PC: 12b56 | Write file or device (Write 466 bytes on handle 8)
2018-12-17T21:54:03.127781482Z 62 PC: 12b5a | Close file
2018-12-17T21:54:03.135592713Z 79 PC: 12b65 | Find next file
2018-12-17T21:54:03.139136298Z 47 PC: 12a9b | Get disk transfer address
2018-12-17T21:54:03.140277093Z 43 PC: 12af1 | Set date
2018-12-17T21:54:03.143684192Z 61 PC: 12af9 | Open file (Filename = 'PHANG.COM')
2018-12-17T21:54:03.161345761Z 63 PC: 12b07 | Read file or device (Read 29 bytes on handle 8)
2018-12-17T21:54:03.167831287Z 60 PC: 12b44 | Create or truncate file
2018-12-17T21:54:03.179696573Z 64 PC: 12b56 | Write file or device (Write 403 bytes on handle 9)
2018-12-17T21:54:03.185058239Z 62 PC: 12b5a | Close file
2018-12-17T21:54:03.193279545Z 79 PC: 12b65 | Find next file
2018-12-17T21:54:03.196358712Z 47 PC: 12a9b | Get disk transfer address
2018-12-17T21:54:03.198740538Z 43 PC: 12af1 | Set date
2018-12-17T21:54:03.202125986Z 61 PC: 12af9 | Open file (Filename = 'PRINTA~1.COM')
2018-12-17T21:54:03.213810958Z 63 PC: 12b07 | Read file or device (Read 29 bytes on handle 9)
2018-12-17T21:54:03.22140089Z 60 PC: 12b44 | Create or truncate file
2018-12-17T21:54:03.233583051Z 64 PC: 12b56 | Write file or device (Write 403 bytes on handle 10)
2018-12-17T21:54:03.237491134Z 62 PC: 12b5a | Close file
2018-12-17T21:54:03.24637572Z 79 PC: 12b65 | Find next file
2018-12-17T21:54:03.250314925Z 47 PC: 12a9b | Get disk transfer address
2018-12-17T21:54:03.251848552Z 43 PC: 12af1 | Set date
2018-12-17T21:54:03.25604723Z 61 PC: 12af9 | Open file (Filename = 'MANDEL.COM')
2018-12-17T21:54:03.262475242Z 63 PC: 12b07 | Read file or device (Read 501 bytes on handle 10)
2018-12-17T21:54:03.269500623Z 60 PC: 12b44 | Create or truncate file
2018-12-17T21:54:03.282048093Z 64 PC: 12b56 | Write file or device (Write 875 bytes on handle 11)
2018-12-17T21:54:03.290384062Z 62 PC: 12b5a | Close file
2018-12-17T21:54:03.298805353Z 79 PC: 12b65 | Find next file
2018-12-17T21:54:03.302308361Z 47 PC: 12a9b | Get disk transfer address
2018-12-17T21:54:03.303793134Z 43 PC: 12af1 | Set date
2018-12-17T21:54:03.307425423Z 61 PC: 12af9 | Open file (Filename = 'PAH.COM')
2018-12-17T21:54:03.319373826Z 63 PC: 12b07 | Read file or device (Read 29 bytes on handle 11)
2018-12-17T21:54:03.325865901Z 60 PC: 12b44 | Create or truncate file
2018-12-17T21:54:03.340117416Z 64 PC: 12b56 | Write file or device (Write 403 bytes on handle 12)
2018-12-17T21:54:03.344303278Z 62 PC: 12b5a | Close file
2018-12-17T21:54:03.353398116Z 79 PC: 12b65 | Find next file
2018-12-17T21:54:03.355974481Z 47 PC: 12a9b | Get disk transfer address
2018-12-17T21:54:03.357837346Z 43 PC: 12af1 | Set date
2018-12-17T21:54:03.361527638Z 61 PC: 12af9 | Open file (Filename = 'TEST.COM')
2018-12-17T21:54:03.373722908Z 63 PC: 12b07 | Read file or device (Read 5494 bytes on handle 12)
2018-12-17T21:54:03.382597669Z 79 PC: 12b65 | Find next file
2018-12-17T21:54:03.385114768Z 43 PC: 12b78 | Set date
2018-12-17T21:54:03.388948651Z 9 PC: 12a85 | Display string (String= 'Sophos Ltd, Oxford sacrificial COM goat 1400H bytes long ')
2018-12-17T21:54:03.394919546Z 0 PC: 12a89 | Program terminate