Sample viewer

vx.netlux.org/Virus.DOS.Rb91.899

.

GIF

Syscalls:

Time Syscall Op Syscall Name
2018-12-17T23:08:34.728249733Z 42 PC: 13b02 | Get date 0x13b02: cmp dh, 4
0x13b05: jne 0x13b34
0x13b07: mov al, byte ptr [0x183]
0x13b0a: call 0x13b1a
0x13b0d: cmp byte ptr [0x183], 0x19
0x13b12: je 0x13b29
0x13b14: inc byte ptr [0x183]
0x13b18: loop 0x13b07
0x13b1a: mov ah, 5
0x13b1c: mov ch, byte ptr [0x188]
0x13b20: mov dh, 0
0x13b22: mov dl, byte ptr [0x183]
0x13b26: int 0x13
0x13b28: ret
0x13b29: mov byte ptr [0x183], 2
0x13b2e: inc byte ptr [0x188]
0x13b32: jmp 0x13b07
0x13b34: mov ah, 0x47
0x13b36: xor dl, dl
0x13b38: add si, 0xa
2018-12-17T23:08:34.730640002Z 71 PC: 13b3e | Get current directory
2018-12-17T23:08:34.733363537Z 59 PC: 13b4a | Change current directory
2018-12-17T23:08:34.737228632Z 26 PC: 13bea | Set disk transfer address
2018-12-17T23:08:34.738535196Z 78 PC: 13bf8 | Find first file
2018-12-17T23:08:34.744957169Z 61 PC: 13c1f | Open file (Filename = 'SLEEP.COM')
2018-12-17T23:08:34.751794431Z 63 PC: 13c32 | Read file or device (Read 8 bytes on handle 5)
2018-12-17T23:08:34.759081176Z 44 PC: 13c60 | Get time 0x13c60: add dl, dh
0x13c62: je 0x13c5c
0x13c64: mov si, 0x115
0x13c67: add si, word ptr [0x106]
0x13c6b: mov byte ptr [si], dl
0x13c6d: mov ax, 0x4301
0x13c70: xor cx, cx
0x13c72: mov dx, si
0x13c74: add dx, 0x94
0x13c78: int 0x21
0x13c7a: mov ah, 0x3e
0x13c7c: int 0x21
0x13c7e: mov ax, 0x3d02
0x13c81: int 0x21
0x13c83: jb 0x13c41
0x13c85: mov di, dx
0x13c87: add di, 0x83
0x13c8b: stosw word ptr es:[di], ax
0x13c8c: xchg ax, bx
0x13c8d: mov ah, 0x40
2018-12-17T23:08:34.762161317Z 67 PC: 13c7a | Get or set file attributes
2018-12-17T23:08:34.782652139Z 62 PC: 13c7e | Close file
2018-12-17T23:08:34.784741477Z 61 PC: 13c83 | Open file (Filename = 'SLEEP.COM')
2018-12-17T23:08:34.797373577Z 64 PC: 13c98 | Write file or device (Write 4 bytes on handle 5)
2018-12-17T23:08:34.807022404Z 64 PC: 13cab | Write file or device (Write 2 bytes on handle 5)
2018-12-17T23:08:34.810068797Z 64 PC: 13cc0 | Write file or device (Write 2 bytes on handle 5)
2018-12-17T23:08:34.814694069Z 66 PC: 13cc9 | Move file pointer
2018-12-17T23:08:34.816957375Z 64 PC: 13a85 | Write file or device (Write 899 bytes on handle 5)
2018-12-17T23:08:34.826084112Z 87 PC: 13ce3 | Get or set file date and time
2018-12-17T23:08:34.828650777Z 62 PC: 13ce7 | Close file
2018-12-17T23:08:34.836471736Z 67 PC: 13cfa | Get or set file attributes
2018-12-17T23:08:34.846154426Z 79 PC: 13c0c | Find next file
2018-12-17T23:08:34.849112831Z 61 PC: 13c1f | Open file (Filename = 'PRINT.COM')
2018-12-17T23:08:34.855746017Z 63 PC: 13c32 | Read file or device (Read 8 bytes on handle 5)
2018-12-17T23:08:34.862047118Z 62 PC: 13c45 | Close file
2018-12-17T23:08:34.867223079Z 79 PC: 13c0c | Find next file
2018-12-17T23:08:34.869022235Z 61 PC: 13c1f | Open file (Filename = 'HELLO.COM')
2018-12-17T23:08:34.873580068Z 63 PC: 13c32 | Read file or device (Read 8 bytes on handle 5)
2018-12-17T23:08:34.878006594Z 62 PC: 13c45 | Close file
2018-12-17T23:08:34.879372787Z 79 PC: 13c0c | Find next file
2018-12-17T23:08:34.881277644Z 61 PC: 13c1f | Open file (Filename = 'PHANG.COM')
2018-12-17T23:08:34.885910376Z 63 PC: 13c32 | Read file or device (Read 8 bytes on handle 5)
2018-12-17T23:08:34.890239798Z 62 PC: 13c45 | Close file
2018-12-17T23:08:34.892058347Z 79 PC: 13c0c | Find next file
2018-12-17T23:08:34.894899495Z 61 PC: 13c1f | Open file (Filename = 'PRINTA~1.COM')
2018-12-17T23:08:34.902041132Z 63 PC: 13c32 | Read file or device (Read 8 bytes on handle 5)
2018-12-17T23:08:34.906318583Z 62 PC: 13c45 | Close file
2018-12-17T23:08:34.913976515Z 79 PC: 13c0c | Find next file
2018-12-17T23:08:34.915983957Z 61 PC: 13c1f | Open file (Filename = 'MANDEL.COM')
2018-12-17T23:08:34.920058963Z 63 PC: 13c32 | Read file or device (Read 8 bytes on handle 5)
2018-12-17T23:08:34.924727656Z 44 PC: 13c60 | Get time 0x13c60: add dl, dh
0x13c62: je 0x13c5c
0x13c64: mov si, 0x115
0x13c67: add si, word ptr [0x106]
0x13c6b: mov byte ptr [si], dl
0x13c6d: mov ax, 0x4301
0x13c70: xor cx, cx
0x13c72: mov dx, si
0x13c74: add dx, 0x94
0x13c78: int 0x21
0x13c7a: mov ah, 0x3e
0x13c7c: int 0x21
0x13c7e: mov ax, 0x3d02
0x13c81: int 0x21
0x13c83: jb 0x13c41
0x13c85: mov di, dx
0x13c87: add di, 0x83
0x13c8b: stosw word ptr es:[di], ax
0x13c8c: xchg ax, bx
0x13c8d: mov ah, 0x40
2018-12-17T23:08:34.926636541Z 67 PC: 13c7a | Get or set file attributes
2018-12-17T23:08:34.935734196Z 62 PC: 13c7e | Close file
2018-12-17T23:08:34.938350749Z 61 PC: 13c83 | Open file (Filename = 'MANDEL.COM')
2018-12-17T23:08:34.945307475Z 64 PC: 13c98 | Write file or device (Write 4 bytes on handle 5)
2018-12-17T23:08:34.952036126Z 64 PC: 13cab | Write file or device (Write 2 bytes on handle 5)
2018-12-17T23:08:34.954922058Z 64 PC: 13cc0 | Write file or device (Write 2 bytes on handle 5)
2018-12-17T23:08:34.957598135Z 66 PC: 13cc9 | Move file pointer
2018-12-17T23:08:34.959364088Z 64 PC: 13a85 | Write file or device (Write 899 bytes on handle 5)
2018-12-17T23:08:34.969618732Z 87 PC: 13ce3 | Get or set file date and time
2018-12-17T23:08:34.97140047Z 62 PC: 13ce7 | Close file
2018-12-17T23:08:35.185471398Z 67 PC: 13cfa | Get or set file attributes
2018-12-17T23:08:35.304657053Z 79 PC: 13c0c | Find next file
2018-12-17T23:08:35.307586164Z 61 PC: 13c1f | Open file (Filename = 'PAH.COM')
2018-12-17T23:08:35.314059382Z 63 PC: 13c32 | Read file or device (Read 8 bytes on handle 5)
2018-12-17T23:08:35.320379922Z 62 PC: 13c45 | Close file
2018-12-17T23:08:35.322998278Z 79 PC: 13c0c | Find next file
2018-12-17T23:08:35.325623058Z 61 PC: 13c1f | Open file (Filename = 'TEST.COM')
2018-12-17T23:08:35.332802094Z 63 PC: 13c32 | Read file or device (Read 8 bytes on handle 5)
2018-12-17T23:08:35.341076489Z 62 PC: 13c45 | Close file
2018-12-17T23:08:35.34357345Z 79 PC: 13c0c | Find next file
2018-12-17T23:08:35.346588405Z 26 PC: 13b77 | Set disk transfer address
2018-12-17T23:08:35.349306552Z 78 PC: 13b85 | Find first file
2018-12-17T23:08:35.355654871Z 59 PC: 13b94 | Change current directory
2018-12-17T23:08:35.362276065Z 26 PC: 13ba9 | Set disk transfer address
2018-12-17T23:08:35.364219045Z 79 PC: 13bad | Find next file
2018-12-17T23:08:35.366862699Z 59 PC: 13b94 | Change current directory
2018-12-17T23:08:35.373496147Z 26 PC: 13ba9 | Set disk transfer address
2018-12-17T23:08:35.375950332Z 79 PC: 13bad | Find next file
2018-12-17T23:08:35.379273868Z 59 PC: 13b94 | Change current directory
2018-12-17T23:08:35.385321232Z 26 PC: 13ba9 | Set disk transfer address
2018-12-17T23:08:35.387748929Z 79 PC: 13bad | Find next file
2018-12-17T23:08:35.39049807Z 59 PC: 13b94 | Change current directory
2018-12-17T23:08:35.401699679Z 26 PC: 13ba9 | Set disk transfer address
2018-12-17T23:08:35.403444309Z 79 PC: 13bad | Find next file
2018-12-17T23:08:35.405941498Z 59 PC: 13b94 | Change current directory
2018-12-17T23:08:35.411443507Z 26 PC: 13ba9 | Set disk transfer address
2018-12-17T23:08:35.413044678Z 79 PC: 13bad | Find next file
2018-12-17T23:08:35.415395359Z 59 PC: 13b94 | Change current directory
2018-12-17T23:08:35.43269271Z 26 PC: 13ba9 | Set disk transfer address
2018-12-17T23:08:35.434117782Z 79 PC: 13bad | Find next file
2018-12-17T23:08:35.436463721Z 59 PC: 13b94 | Change current directory
2018-12-17T23:08:35.441952513Z 26 PC: 13ba9 | Set disk transfer address
2018-12-17T23:08:35.443787449Z 79 PC: 13bad | Find next file
2018-12-17T23:08:35.446160127Z 59 PC: 13b94 | Change current directory
2018-12-17T23:08:35.45173739Z 26 PC: 13ba9 | Set disk transfer address
2018-12-17T23:08:35.453954857Z 79 PC: 13bad | Find next file
2018-12-17T23:08:35.456431391Z 59 PC: 13b94 | Change current directory
2018-12-17T23:08:35.476366967Z 26 PC: 13ba9 | Set disk transfer address
2018-12-17T23:08:35.478428951Z 79 PC: 13bad | Find next file
2018-12-17T23:08:35.481038827Z 59 PC: 13bc8 | Change current directory
2018-12-17T23:08:35.485332077Z 42 PC: 13b53 | Get date 0x13b53: cmp al, 2
0x13b55: je 0x13b5a
0x13b57: jmp 0x13d6d
0x13b5a: jmp 0x13d00
0x13b5d: and byte ptr [bp + si], bl
0x13b5f: lea cx, word ptr [bx + si + 0x1d4d]
0x13b63: add byte ptr [di], al
0x13b65: add byte ptr [di - 0x75], dl
0x13b68: in al, dx
0x13b69: sub sp, 0x2c
0x13b6c: push si
0x13b6d: jmp 0x13bdf
0x13b6f: nop
0x13b70: mov ah, 0x1a
0x13b72: lea dx, word ptr [bp - 0x2c]
0x13b75: int 0x21
0x13b77: mov ah, 0x4e
0x13b79: mov cx, 0x10
0x13b7c: mov dx, 0x17c
0x13b7f: add dx, word ptr [0x106]
2018-12-17T23:08:35.489307367Z 59 PC: 13d78 | Change current directory
2018-12-17T23:08:35.493461193Z 59 PC: 13d80 | Change current directory
2018-12-17T23:08:35.495356385Z 76 PC: 12a48 | Terminate with return code (Return code = '0')