<s>
Mirai	B-Language
(	O
from	O
the	O
Japanese	O
word	O
for	O
"	O
future	O
"	O
,	O
未来	O
)	O
is	O
a	O
malware	O
that	O
turns	O
networked	O
devices	O
running	O
Linux	B-Application
into	O
remotely	O
controlled	O
bots	B-Protocol
that	O
can	O
be	O
used	O
as	O
part	O
of	O
a	O
botnet	B-Architecture
in	O
large-scale	O
network	O
attacks	O
.	O
</s>
<s>
It	O
primarily	O
targets	O
online	O
consumer	O
devices	O
such	O
as	O
IP	B-Algorithm
cameras	I-Algorithm
and	O
home	B-Application
routers	I-Application
.	O
</s>
<s>
The	O
Mirai	B-Language
botnet	I-Language
was	O
first	O
found	O
in	O
August	O
2016	O
by	O
MalwareMustDie	O
,	O
a	O
white	O
hat	O
malware	O
research	O
group	O
,	O
and	O
has	O
been	O
used	O
in	O
some	O
of	O
the	O
largest	O
and	O
most	O
disruptive	O
distributed	O
denial	O
of	O
service	O
(	O
DDoS	O
)	O
attacks	O
,	O
including	O
an	O
attack	O
on	O
20	O
September	O
2016	O
on	O
computer	O
security	O
journalist	O
Brian	O
Krebs	O
 '	O
website	O
,	O
an	O
attack	O
on	O
French	O
web	O
host	O
OVH	B-General_Concept
,	O
and	O
the	O
October	B-Device
2016	I-Device
Dyn	I-Device
cyberattack	I-Device
.	O
</s>
<s>
According	O
to	O
a	O
chat	O
log	O
between	O
Anna-senpai	B-Language
and	O
Robert	O
Coelho	O
,	O
Mirai	B-Language
was	O
named	O
after	O
the	O
2011	O
TV	O
anime	O
series	O
Mirai	B-Language
Nikki	O
.	O
</s>
<s>
The	O
software	O
was	O
initially	O
used	O
by	O
the	O
creators	O
to	O
DDoS	O
Minecraft	B-Application
servers	O
and	O
companies	O
offering	O
DDoS	O
protection	O
to	O
Minecraft	B-Application
servers	O
,	O
with	O
the	O
authors	O
using	O
Mirai	B-Language
to	O
operate	O
a	O
protection	O
racket	O
.	O
</s>
<s>
The	O
source	O
code	O
for	O
Mirai	B-Language
was	O
subsequently	O
published	O
on	O
Hack	O
Forums	O
as	O
open-source	B-Application
.	O
</s>
<s>
Devices	O
infected	O
by	O
Mirai	B-Language
continuously	O
scan	O
the	O
internet	O
for	O
the	O
IP	B-Protocol
address	I-Protocol
of	O
Internet	B-Operating_System
of	I-Operating_System
things	I-Operating_System
(	O
IoT	B-Operating_System
)	O
devices	O
.	O
</s>
<s>
Mirai	B-Language
includes	O
a	O
table	O
of	O
IP	B-Protocol
address	I-Protocol
ranges	O
that	O
it	O
will	O
not	O
infect	O
,	O
including	O
private	B-Protocol
networks	I-Protocol
and	O
addresses	O
allocated	O
to	O
the	O
United	O
States	O
Postal	O
Service	O
and	O
Department	O
of	O
Defense	O
.	O
</s>
<s>
Mirai	B-Language
then	O
identifies	O
vulnerable	O
IoT	B-Operating_System
devices	I-Operating_System
using	O
a	O
table	O
of	O
more	O
than	O
60	O
common	O
factory	O
default	O
usernames	O
and	O
passwords	O
,	O
and	O
logs	O
into	O
them	O
to	O
infect	O
them	O
with	O
the	O
Mirai	B-Language
malware	O
.	O
</s>
<s>
After	O
a	O
reboot	B-Device
,	O
unless	O
the	O
login	O
password	O
is	O
changed	O
immediately	O
,	O
the	O
device	O
will	O
be	O
reinfected	O
within	O
minutes	O
.	O
</s>
<s>
Upon	O
infection	O
Mirai	B-Language
will	O
identify	O
any	O
"	O
competing	O
"	O
malware	O
,	O
remove	O
it	O
from	O
memory	O
,	O
and	O
block	O
remote	O
administration	O
ports	O
.	O
</s>
<s>
Victim	O
IoT	B-Operating_System
devices	I-Operating_System
are	O
identified	O
by	O
“	O
first	O
entering	O
a	O
rapid	O
scanning	O
phase	O
where	O
it	O
asynchronously	O
and	O
“	O
statelessly	O
”	O
sent	O
TCP	O
SYN	O
probes	O
to	O
pseudo-random	O
IPv4	O
addresses	O
,	O
excluding	O
those	O
in	O
a	O
hard-coded	O
IP	O
blacklist	O
,	O
on	O
telnet	B-Protocol
TCP	O
ports	O
23	O
and	O
2323	O
”	O
.	O
</s>
<s>
If	O
an	O
IoT	B-Operating_System
device	O
responds	O
to	O
the	O
probe	O
,	O
the	O
attack	O
then	O
enters	O
into	O
a	O
brute-force	O
login	O
phase	O
.	O
</s>
<s>
During	O
this	O
phase	O
,	O
the	O
attacker	O
tries	O
to	O
establish	O
a	O
telnet	B-Protocol
connection	O
using	O
predetermined	O
username	O
and	O
password	O
pairs	O
from	O
a	O
list	O
of	O
credentials	O
.	O
</s>
<s>
Most	O
of	O
these	O
logins	O
are	O
default	O
usernames	O
and	O
passwords	O
from	O
the	O
IoT	B-Operating_System
vendor	O
.	O
</s>
<s>
If	O
the	O
IoT	B-Operating_System
device	O
allows	O
the	O
Telnet	B-Protocol
access	O
,	O
the	O
victim	O
's	O
IP	O
,	O
along	O
with	O
the	O
successfully	O
used	O
credential	O
is	O
sent	O
to	O
a	O
collection	O
server	O
.	O
</s>
<s>
There	O
are	O
a	O
large	O
amount	O
of	O
IoT	B-Operating_System
devices	I-Operating_System
which	O
use	O
default	O
settings	O
,	O
making	O
them	O
vulnerable	O
to	O
infection	O
.	O
</s>
<s>
The	O
reason	O
for	O
the	O
use	O
of	O
the	O
large	O
number	O
of	O
IoT	B-Operating_System
devices	I-Operating_System
is	O
to	O
bypass	O
some	O
anti-DoS	O
software	O
which	O
monitors	O
the	O
IP	B-Protocol
address	I-Protocol
of	O
incoming	O
requests	O
and	O
filters	O
or	O
sets	O
up	O
a	O
block	O
if	O
it	O
identifies	O
an	O
abnormal	O
traffic	O
pattern	O
,	O
for	O
example	O
,	O
if	O
too	O
many	O
requests	O
come	O
from	O
a	O
particular	O
IP	B-Protocol
address	I-Protocol
.	O
</s>
<s>
Mirai	B-Language
as	O
an	B-Operating_System
Internet	I-Operating_System
of	I-Operating_System
things	I-Operating_System
(	O
IoT	B-Operating_System
)	O
devices	O
threat	O
has	O
not	O
been	O
stopped	O
after	O
the	O
arrest	O
of	O
the	O
actors	O
.	O
</s>
<s>
Some	O
believe	O
that	O
other	O
actors	O
are	O
utilizing	O
the	O
Mirai	B-Language
malware	O
source	O
code	O
on	O
GitHub	B-Application
to	O
evolve	O
Mirai	B-Language
into	O
new	O
variants	O
.	O
</s>
<s>
They	O
speculate	O
that	O
the	O
goal	O
is	O
to	O
expand	O
its	O
botnet	B-Architecture
node	B-Protocol
to	O
many	O
more	O
IoT	B-Operating_System
devices	I-Operating_System
.	O
</s>
<s>
On	O
12	O
December	O
2017	O
,	O
researchers	O
identified	O
a	O
variant	O
of	O
Mirai	B-Language
exploiting	O
a	O
zero-day	O
flaw	O
in	O
Huawei	O
HG532	O
routers	B-Protocol
to	O
accelerate	O
Mirai	B-Language
botnets	I-Language
infection	O
,	O
implementing	O
two	O
known	O
SOAP	B-Application
related	O
exploits	O
on	O
routers	B-Protocol
web	O
interface	O
,	O
CVE-2014	O
–	O
8361	O
and	O
CVE-2017	O
–	O
17215	O
.	O
</s>
<s>
This	O
Mirai	B-Language
version	O
is	O
called	O
"	O
Satori	O
"	O
.	O
</s>
<s>
On	O
14	O
January	O
2018	O
,	O
a	O
new	O
variant	O
of	O
Mirai	B-Language
dubbed	O
“	O
Okiru	O
”	O
already	O
targeting	O
popular	O
embedded	O
processor	O
like	O
ARM	O
,	O
MIPS	O
,	O
x86	O
,	O
PowerPC	O
and	O
others	O
was	O
found	O
targeting	O
ARC	B-Application
processors	I-Application
based	O
Linux	B-Application
devices	O
for	O
the	O
first	O
time	O
.	O
</s>
<s>
Argonaut	B-Application
RISC	I-Application
Core	I-Application
processor	O
(	O
shorted	O
:	O
ARC	B-Application
processors	I-Application
)	O
is	O
the	O
second-most-popular	O
embedded	O
32	O
bit	O
processor	O
,	O
shipped	O
in	O
more	O
than	O
1.5	O
billion	O
products	O
per	O
year	O
,	O
including	O
desktop	O
computers	O
,	O
servers	O
,	O
radio	O
,	O
cameras	O
,	O
mobile	O
,	O
utility	O
meters	O
,	O
televisions	O
,	O
flash	O
drives	O
,	O
automotive	O
,	O
networking	O
devices	O
(	O
smart	O
hubs	O
,	O
TV	O
modems	O
,	O
routers	B-Protocol
,	O
wifi	O
)	O
and	O
Internet	B-Operating_System
of	I-Operating_System
Things	I-Operating_System
.	O
</s>
<s>
Only	O
a	O
relatively	O
small	O
number	O
of	O
ARC-based	O
devices	O
run	O
Linux	B-Application
and	O
are	O
therefore	O
exposed	O
to	O
Mirai	B-Language
.	O
</s>
<s>
On	O
18	O
January	O
2018	O
,	O
a	O
successor	O
of	O
Mirai	B-Language
is	O
reported	O
to	O
be	O
designed	O
to	O
hijack	O
cryptocurrency	O
mining	O
operations	O
.	O
</s>
<s>
On	O
26	O
January	O
2018	O
,	O
two	O
similar	O
Mirai	B-Language
variant	O
botnets	B-Architecture
were	O
reported	O
,	O
the	O
more	O
modified	O
version	O
of	O
which	O
weaponizes	O
EDB	O
38722	O
D-Link	O
router	B-Protocol
's	O
exploit	O
to	O
enlist	O
further	O
vulnerable	O
IoT	B-Operating_System
devices	I-Operating_System
.	O
</s>
<s>
The	O
vulnerability	O
in	O
the	O
router	B-Protocol
's	O
Home	O
Network	O
Administration	O
Protocol	O
(	O
HNAP	O
)	O
is	O
utilized	O
to	O
craft	O
a	O
malicious	O
query	O
to	O
exploited	O
routers	B-Protocol
that	O
can	O
bypass	O
authentication	O
,	O
to	O
then	O
cause	O
an	O
arbitrary	O
remote	O
code	O
execution	O
.	O
</s>
<s>
The	O
less	O
modified	O
version	O
of	O
Mirai	B-Language
is	O
called	O
"	O
Masuta	O
"	O
(	O
after	O
the	O
Japanese	O
transliteration	O
of	O
"	O
Master	O
"	O
)	O
,	O
while	O
the	O
more	O
modified	O
version	O
is	O
called	O
"	O
PureMasuta	O
"	O
.	O
</s>
<s>
In	O
March	O
2018	O
,	O
a	O
new	O
variant	O
of	O
Mirai	B-Language
,	O
dubbed	O
as	O
"	O
OMG	O
"	O
,	O
has	O
emerged	O
to	O
surface	O
with	O
added	O
configurations	O
to	O
target	O
vulnerable	O
IoT	B-Operating_System
devices	I-Operating_System
and	O
turning	O
them	O
into	O
proxy	O
servers	O
.	O
</s>
<s>
New	O
firewall	O
rules	O
that	O
allow	O
traffic	O
to	O
travel	O
through	O
the	O
generated	O
HTTP	O
and	O
SOCKS	O
ports	O
were	O
added	O
configurations	O
to	O
the	O
Mirai	B-Language
code	O
.	O
</s>
<s>
Once	O
these	O
ports	O
are	O
open	O
to	O
traffic	O
,	O
OMG	O
sets	O
up	O
3proxy	O
–	O
open-source	B-Application
software	I-Application
available	O
on	O
a	O
Russian	O
website	O
.	O
</s>
<s>
Between	O
May	O
to	O
June	O
2018	O
,	O
another	O
variant	O
of	O
Mirai	B-Language
,	O
dubbed	O
as	O
"	O
Wicked	O
"	O
,	O
has	O
emerged	O
with	O
added	O
configurations	O
to	O
target	O
at	O
least	O
three	O
additional	O
exploits	O
including	O
those	O
affecting	O
Netgear	O
routers	B-Protocol
and	O
CCTV-DVRs	O
.	O
</s>
<s>
Wicked	O
scans	O
ports	O
8080	O
,	O
8443	O
,	O
80	O
,	O
and	O
81	O
and	O
attempts	O
to	O
locate	O
vulnerable	O
,	O
unpatched	O
IoT	B-Operating_System
devices	I-Operating_System
running	O
on	O
those	O
ports	O
.	O
</s>
<s>
Researchers	O
suspect	O
the	O
same	O
author	O
created	O
the	O
Wicked	O
,	O
Sora	O
,	O
Owari	O
,	O
and	O
Omni	O
botnets	B-Architecture
.	O
</s>
<s>
In	O
early	O
July	O
2018	O
it	O
was	O
reported	O
at	O
least	O
thirteen	O
versions	O
of	O
Mirai	B-Language
malware	O
has	O
been	O
detected	O
actively	O
infecting	O
Linux	B-Application
Internet	B-Operating_System
of	I-Operating_System
things	I-Operating_System
(	O
IoT	B-Operating_System
)	O
in	O
the	O
internet	O
,	O
and	O
three	O
of	O
them	O
were	O
designed	O
to	O
target	O
specific	O
vulnerabilities	O
by	O
using	O
exploit	O
proof	O
of	O
concept	O
,	O
without	O
launching	O
brute-forcing	O
attack	O
to	O
the	O
default	O
credential	O
authentication	O
.	O
</s>
<s>
In	O
the	O
same	O
month	O
it	O
was	O
published	O
a	O
report	O
of	O
infection	O
campaign	O
of	O
Mirai	B-Language
malware	O
to	O
Android	O
devices	O
through	O
the	O
Android	O
Debug	O
Bridge	O
on	O
TCP/5555	O
,	O
an	O
optional	O
feature	O
in	O
the	O
Android	O
operating	O
system	O
,	O
though	O
it	O
was	O
discovered	O
that	O
this	O
feature	O
appears	O
to	O
be	O
enabled	O
on	O
some	O
Android	O
phones	O
.	O
</s>
<s>
At	O
the	O
end	O
of	O
2018	O
,	O
a	O
Mirai	B-Language
variant	O
dubbed	O
"	O
Miori	O
"	O
started	O
being	O
spread	O
through	O
a	O
remote	O
code	O
execution	O
vulnerability	O
in	O
the	O
ThinkPHP	O
framework	O
,	O
affecting	O
versions	O
5.0.23	O
to	O
5.1.31	O
.	O
</s>
<s>
This	O
vulnerability	O
is	O
continuously	O
being	O
abused	O
by	O
the	O
further	O
evolved	O
Mirai	B-Language
variants	O
dubbed	O
as	O
"	O
Hakai	O
"	O
and	O
"	O
Yowai	O
"	O
in	O
January	O
2019	O
,	O
and	O
variant	O
"	O
SpeakUp	O
"	O
in	O
February	O
,	O
2019	O
.	O
</s>
<s>
Mirai	B-Language
was	O
used	O
,	O
alongside	O
BASHLITE	O
,	O
in	O
the	O
DDoS	O
attack	O
on	O
20	O
September	O
2016	O
on	O
the	O
Krebs	O
on	O
Security	O
site	O
which	O
reached	O
620	O
Gbit/s	O
.	O
</s>
<s>
Ars	O
Technica	O
also	O
reported	O
a	O
1	O
Tbit/s	O
attack	O
on	O
French	O
web	O
host	O
OVH	B-General_Concept
.	O
</s>
<s>
On	O
21	O
October	O
2016	O
,	O
multiple	O
major	O
DDoS	O
attacks	O
in	O
DNS	B-Application
services	O
of	O
DNS	B-Application
service	O
provider	O
Dyn	B-Protocol
occurred	O
using	O
Mirai	B-Language
malware	O
installed	O
on	O
a	O
large	O
number	O
of	O
IoT	B-Operating_System
devices	I-Operating_System
,	O
many	O
of	O
which	O
were	O
still	O
using	O
their	O
default	O
usernames	O
and	O
passwords	O
.	O
</s>
<s>
These	O
attacks	O
resulted	O
in	O
the	O
inaccessibility	O
of	O
several	O
high-profile	O
websites	O
,	O
including	O
GitHub	B-Application
,	O
Twitter	B-Application
,	O
Reddit	B-Application
,	O
Netflix	O
,	O
Airbnb	O
and	O
many	O
others	O
.	O
</s>
<s>
The	O
attribution	O
of	O
the	O
Dyn	B-Protocol
attack	O
to	O
the	O
Mirai	B-Language
botnet	I-Language
was	O
originally	O
reported	O
by	O
Level	O
3	O
Communications	O
.	O
</s>
<s>
Mirai	B-Language
was	O
later	O
revealed	O
to	O
have	O
been	O
used	O
during	O
the	O
DDoS	O
attacks	O
against	O
Rutgers	O
University	O
from	O
2014	O
to	O
2016	O
,	O
which	O
left	O
faculty	O
and	O
students	O
on	O
campus	O
unable	O
to	O
access	O
the	O
outside	O
Internet	O
for	O
several	O
days	O
at	O
a	O
time	O
.	O
</s>
<s>
Additionally	O
,	O
a	O
failure	O
of	O
the	O
University	O
's	O
Central	B-Language
Authentication	I-Language
Service	I-Language
caused	O
course	O
registration	O
and	O
other	O
services	O
unavailable	O
during	O
critical	O
times	O
in	O
the	O
academic	O
semester	O
.	O
</s>
<s>
A	O
person	O
under	O
the	O
alias	O
"	O
exfocus	O
"	O
claimed	O
responsibility	O
for	O
the	O
attacks	O
,	O
stating	O
in	O
a	O
Reddit	B-Application
AMA	O
on	O
the	O
/r/Rutgers	O
subreddit	O
that	O
the	O
user	O
was	O
a	O
student	O
at	O
the	O
school	O
and	O
the	O
DDoS	O
attacks	O
were	O
motivated	O
by	O
frustrations	O
with	O
the	O
university	O
's	O
bus	O
system	O
.	O
</s>
<s>
Staff	O
at	O
Deep	O
Learning	O
Security	O
observed	O
the	O
steady	O
growth	O
of	O
Mirai	B-Language
botnets	I-Language
before	O
and	O
after	O
the	O
21	O
October	O
attack	O
.	O
</s>
<s>
Mirai	B-Language
has	O
also	O
been	O
used	O
in	O
an	O
attack	O
on	O
Liberia	O
's	O
Internet	O
infrastructure	O
in	O
November	O
2016	O
.	O
</s>
<s>
According	O
to	O
computer	O
security	O
expert	O
Kevin	O
Beaumont	O
,	O
the	O
attack	O
appears	O
to	O
have	O
originated	O
from	O
the	O
actor	O
which	O
also	O
attacked	O
Dyn	B-Protocol
.	O
</s>
<s>
At	O
the	O
end	O
of	O
November	O
2016	O
,	O
approximately	O
900,000	O
routers	B-Protocol
,	O
from	O
Deutsche	O
Telekom	O
and	O
produced	O
by	O
Arcadyan	O
,	O
were	O
crashed	O
due	O
to	O
failed	O
TR-064	O
exploitation	O
attempts	O
by	O
a	O
variant	O
of	O
Mirai	B-Language
,	O
which	O
resulted	O
in	O
Internet	O
connectivity	O
problems	O
for	O
the	O
users	O
of	O
these	O
devices	O
.	O
</s>
<s>
While	O
TalkTalk	O
later	O
patched	O
their	O
routers	B-Protocol
,	O
a	O
new	O
variant	O
of	O
Mirai	B-Language
was	O
discovered	O
in	O
TalkTalk	O
routers	B-Protocol
.	O
</s>
<s>
Krebs	O
stated	O
that	O
the	O
likely	O
real-life	O
identity	O
of	O
Anna-senpai	B-Language
(	O
named	O
after	O
Anna	O
Nishikinomiya	O
,	O
a	O
character	O
from	O
Shimoneta	O
)	O
,	O
the	O
author	O
of	O
Mirai	B-Language
,	O
was	O
actually	O
an	O
Indian-American	O
Paras	O
Jha	O
,	O
the	O
owner	O
of	O
a	O
DDoS	O
mitigation	O
service	O
company	O
ProTraf	O
Solutions	O
and	O
a	O
student	O
of	O
Rutgers	O
University	O
.	O
</s>
<s>
In	O
an	O
update	O
to	O
the	O
original	O
article	O
,	O
Paras	O
Jha	O
responded	O
to	O
Krebs	O
and	O
denied	O
having	O
written	O
Mirai	B-Language
.	O
</s>
<s>
The	O
FBI	O
was	O
reported	O
to	O
have	O
questioned	O
Jha	O
on	O
his	O
involvement	O
in	O
the	O
October	B-Device
2016	I-Device
Dyn	I-Device
cyberattack	I-Device
.	O
</s>
<s>
On	O
December	O
13	O
,	O
2017	O
,	O
Paras	O
Jha	O
,	O
Josiah	O
White	O
,	O
and	O
Dalton	O
Norman	O
entered	O
a	O
guilty	O
plea	O
to	O
crimes	O
related	O
to	O
the	O
Mirai	B-Language
botnet	I-Language
.	O
</s>
<s>
Daniel	O
Kaye	O
,	O
29	O
,	O
also	O
known	O
as	O
alias	O
"	O
BestBuy	O
"	O
,	O
"	O
Popopret	O
"	O
or	O
"	O
Spiderman	O
"	O
,	O
has	O
been	O
accused	O
of	O
"	O
using	O
an	O
infected	O
network	O
of	O
computers	O
known	O
as	O
the	O
Mirai	B-Language
botnet	I-Language
to	O
attack	O
and	O
blackmail	O
Lloyds	O
Banking	O
Group	O
and	O
Barclays	O
banks	O
,	O
"	O
according	O
to	O
the	O
NCA	O
.	O
</s>
<s>
Kaye	O
has	O
also	O
pleaded	O
guilty	O
in	O
court	O
on	O
hijacking	O
more	O
than	O
900,000	O
routers	B-Protocol
from	O
the	O
network	O
of	O
Deutsche	O
Telekom	O
.	O
</s>
<s>
Researchers	O
later	O
pointed	O
to	O
the	O
handle	O
name	O
"	O
Nexus	O
Zeta	O
"	O
as	O
responsible	O
for	O
the	O
author	O
of	O
new	O
variants	O
of	O
Mirai	B-Language
(	O
dubbed	O
as	O
Okiru	O
,	O
Satori	O
,	O
Masuta	O
and	O
PureMasuta	O
)	O
,	O
and	O
on	O
August	O
21	O
,	O
2018	O
an	O
American	O
grand	O
jury	O
indicted	O
Kenneth	O
Currin	O
Schuchman	O
,	O
20	O
,	O
aka	O
Nexus	O
Zeta	O
,	O
of	O
knowingly	O
causing	O
the	O
transmission	O
of	O
a	O
program	O
,	O
information	O
,	O
code	O
,	O
and	O
commands	O
,	O
and	O
as	O
result	O
of	O
such	O
conduct	O
intentionally	O
causing	O
damage	O
without	O
authorization	O
to	O
protected	O
computers	O
,	O
according	O
to	O
the	O
indictment	O
filed	O
in	O
U.S.	O
District	O
Court	O
in	O
Anchorage	O
,	O
followed	O
by	O
the	O
arrest	O
and	O
trial	O
of	O
the	O
suspect	O
.	O
</s>
<s>
American	O
electronic	O
musician	O
and	O
composer	O
James	O
Ferraro	O
's	O
2018	O
album	O
Four	O
Pieces	O
for	O
Mirai	B-Language
references	O
Mirai	B-Language
in	O
its	O
ongoing	O
narrative	O
.	O
</s>
