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Warden
Warden Connectors
Commits
7c2e3e58
Commit
7c2e3e58
authored
7 years ago
by
Pavel Eis
Committed by
Pavel Kácha
2 years ago
Browse files
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added connector for transfering IDEA format to STIX format
parent
ca456e1e
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2 changed files
IDEA_to_STIX/StixObjects.py
+151
-0
151 additions, 0 deletions
IDEA_to_STIX/StixObjects.py
IDEA_to_STIX/StixToIdea.py
+46
-0
46 additions, 0 deletions
IDEA_to_STIX/StixToIdea.py
with
197 additions
and
0 deletions
IDEA_to_STIX/StixObjects.py
0 → 100644
+
151
−
0
View file @
7c2e3e58
from
uuid
import
uuid4
import
re
from
time
import
gmtime
,
strftime
class
StixGenerator
(
object
):
def
sighting_object
(
self
,
identity
,
conn_count
,
observed_data
,
alert_type
):
return
{
'
type
'
:
"
sighting
"
,
'
id
'
:
"
sighting--
"
+
str
(
uuid4
()),
'
created_by_ref
'
:
identity
,
'
created
'
:
strftime
(
"
%y-%m-%dT%H:%M:%S
"
,
gmtime
()),
'
count
'
:
conn_count
,
'
sighting_of_ref
'
:
alert_type
,
'
observed_data_refs
'
:
[
observed_data
],
'
where_sighted_refs
'
:
[
identity
]
}
def
identity_object
(
self
,
node
):
return
{
'
type
'
:
"
identity
"
,
'
id
'
:
"
identity--
"
+
str
(
uuid4
()),
'
name
'
:
node
[
0
][
'
Name
'
],
'
labels
'
:
node
[
0
][
'
Type
'
],
'
description
'
:
""
.
join
(
node
[
0
][
'
SW
'
]),
'
identity_class
'
:
"
technology
"
}
def
ipvx_addr_object
(
self
,
addr_objects
,
object_counter
,
source
=
False
):
objects
=
{}
ip_references
=
{}
for
ip_dict
in
addr_objects
:
af
=
"
IP4
"
if
addr_objects
[
0
].
get
(
'
IP4
'
)
else
"
IP6
"
for
ip_addr
in
ip_dict
[
af
]:
objects
[
str
(
object_counter
[
-
1
])]
=
{
'
type
'
:
"
ipv4-addr
"
if
af
==
"
IP4
"
else
"
ipv6-addr
"
,
'
value
'
:
ip_addr
}
object_counter
.
append
(
object_counter
[
-
1
]
+
1
)
ip_references
[
tuple
(
ip_dict
[
'
Port
'
])]
=
[
object_counter
[
0
:
-
1
],
([
ip_dict
[
'
Proto
'
]]
if
source
else
[])]
object_counter
=
[
object_counter
[
-
1
]]
return
ip_references
,
object_counter
,
objects
def
one_network_traffic_object
(
self
,
src_ip_references
=
None
,
dst_ip_references
=
None
):
network_traffic
=
{
'
type
'
:
"
network-traffic
"
}
if
src_ip_references
:
for
port
in
src_ip_references
.
keys
():
network_traffic
[
'
src_ref
'
]
=
[
str
(
ip_key
)
for
ip_key
in
src_ip_references
[
port
][
0
]]
network_traffic
[
'
protocols
'
]
=
src_ip_references
[
port
][
1
][
0
]
network_traffic
[
'
src_port
'
]
=
port
[
0
]
if
len
(
port
)
==
1
else
port
if
dst_ip_references
:
for
port
in
dst_ip_references
.
keys
():
network_traffic
[
'
dst_ref
'
]
=
[
str
(
ip_key
)
for
ip_key
in
dst_ip_references
[
port
][
0
]]
network_traffic
[
'
dst_port
'
]
=
port
[
0
]
if
len
(
port
)
==
1
else
port
return
network_traffic
def
all_network_traffic_objects
(
self
,
src_ip_references
,
dst_ip_references
,
object_counter
):
objects
=
{}
if
len
(
src_ip_references
)
>
1
and
len
(
dst_ip_references
)
>
1
:
network_state
=
"
go_through_src_dst
"
elif
len
(
dst_ip_references
)
==
0
or
len
(
src_ip_references
)
>
len
(
dst_ip_references
):
network_state
=
"
go_through_src
"
elif
len
(
src_ip_references
)
==
0
or
len
(
dst_ip_references
)
>
len
(
src_ip_references
):
network_state
=
"
go_through_dst
"
else
:
network_state
=
"
one_object
"
network_opts
=
{
'
go_through_src_dst
'
:
{
'
dst_params
'
:
{
'
dst_ip_references
'
:
None
},
'
src_params
'
:
{
'
src_ip_references
'
:
None
}},
'
go_through_src
'
:
{
'
dst_params
'
:
{
'
dst_ip_references
'
:
dst_ip_references
}},
'
go_through_dst
'
:
{
'
src_params
'
:
{
'
src_ip_references
'
:
src_ip_references
}},
}
if
re
.
search
(
"
src
"
,
network_state
):
for
port
,
list_of_src_ip
in
src_ip_references
.
items
():
objects
[
str
(
object_counter
)]
=
self
.
one_network_traffic_object
({
port
:
list_of_src_ip
},
network_opts
[
network_state
][
'
dst_params
'
][
'
dst_ip_references
'
])
object_counter
+=
1
if
re
.
search
(
"
dst
"
,
network_state
):
for
port
,
list_of_dst_ip
in
dst_ip_references
.
items
():
objects
[
str
(
object_counter
)]
=
self
.
one_network_traffic_object
(
network_opts
[
network_state
]
[
'
src_params
'
][
'
src_ip_references
'
],
{
port
:
list_of_dst_ip
})
object_counter
+=
1
if
network_state
==
"
one_object
"
:
objects
[
str
(
object_counter
)]
=
self
.
one_network_traffic_object
(
src_ip_references
,
dst_ip_references
)
return
objects
def
external_references
(
self
,
refs
):
ext_references
=
[]
for
record
in
refs
:
if
re
.
search
(
"
^url:
"
,
record
):
ext_references
.
append
({
'
url
'
:
record
[
4
:]})
else
:
ext_references
.
append
({
'
source_name
'
:
record
.
split
(
"
:
"
)[
0
],
'
external_id
'
:
record
.
split
(
"
:
"
)[
1
]})
return
ext_references
def
observed_data_object
(
self
,
identity
,
data
,
labels
=
False
):
observed_data
=
{
'
type
'
:
"
observed-data
"
,
'
id
'
:
"
observed-data--
"
+
str
(
uuid4
()),
'
created_by_ref
'
:
identity
,
'
created
'
:
data
[
'
DetectTime
'
],
'
first_observed
'
:
data
[
'
EventTime
'
]
if
data
.
get
(
'
EventTime
'
)
else
data
[
'
DetectTime
'
],
'
last_observed
'
:
data
[
'
CeaseTime
'
]
if
data
.
get
(
'
CeaseTime
'
)
else
data
[
'
DetectTime
'
],
'
number-observed
'
:
data
[
'
ConnCount
'
]
if
data
.
get
(
'
ConnCount
'
)
else
1
}
if
data
[
'
Ref
'
]:
observed_data
[
'
external_references
'
]
=
self
.
external_references
(
data
[
'
Ref
'
])
if
labels
:
observed_data
[
'
labels
'
]
=
data
[
'
Category
'
]
object_counter
=
[
0
]
# process source and target data
if
data
.
get
(
'
Source
'
)
and
data
.
get
(
'
Target
'
):
src_ip_references
,
object_counter
,
src_objects
=
self
.
ipvx_addr_object
(
data
[
'
Source
'
],
object_counter
,
True
)
dst_ip_references
,
object_counter
,
dst_objects
=
self
.
ipvx_addr_object
(
data
[
'
Target
'
],
object_counter
)
objects
=
{
**
src_objects
,
**
dst_objects
}
elif
data
.
get
(
'
Target
'
):
dst_ip_references
,
object_counter
,
objects
=
self
.
ipvx_addr_object
(
data
[
'
Target
'
],
object_counter
)
src_ip_references
=
{}
elif
data
.
get
(
'
Source
'
):
src_ip_references
,
object_counter
,
objects
=
self
.
ipvx_addr_object
(
data
[
'
Source
'
],
object_counter
,
True
)
dst_ip_references
=
{}
else
:
objects
=
None
if
objects
:
object_counter
=
object_counter
[
-
1
]
network_objects
=
self
.
all_network_traffic_objects
(
src_ip_references
,
dst_ip_references
,
object_counter
)
observed_data
[
'
objects
'
]
=
{
**
objects
,
**
network_objects
}
return
observed_data
def
alert_object
(
self
,
category
,
ref
):
if
re
.
search
(
"
Vulnerability
"
,
category
):
vulnerability
=
{
'
type
'
:
"
Vulnerability
"
,
'
id
'
:
"
vulnerability--
"
+
str
(
uuid4
()),
'
name
'
:
"
unknown
"
}
if
ref
:
vulnerability
[
'
external_references
'
]
=
self
.
external_references
(
ref
)
return
vulnerability
else
:
return
{
'
type
'
:
"
malware
"
,
'
id
'
:
"
malware--
"
+
str
(
uuid4
()),
'
name
'
:
"
unknown
"
,
'
labels
'
:
[
category
]
}
This diff is collapsed.
Click to expand it.
IDEA_to_STIX/StixToIdea.py
0 → 100644
+
46
−
0
View file @
7c2e3e58
import
json
from
StixObjects
import
StixGenerator
def
generate_sighting_message
(
data
,
category
):
stix_gen
=
StixGenerator
()
print
(
"
sighting message
"
)
identity
=
stix_gen
.
identity_object
(
data
.
get
(
'
Node
'
))
print
(
identity
)
observed_data
=
stix_gen
.
observed_data_object
(
identity
[
'
id
'
],
data
)
print
(
observed_data
)
alert_object
=
stix_gen
.
alert_object
(
category
,
data
.
get
(
'
Ref
'
))
print
(
alert_object
)
sighting_object
=
stix_gen
.
sighting_object
(
identity
[
'
id
'
],
data
[
'
ConnCount
'
],
observed_data
[
'
id
'
],
alert_object
[
'
id
'
])
print
(
sighting_object
)
def
generate_observable_message
(
data
):
stix_gen
=
StixGenerator
()
print
(
"
observable message
"
)
identity
=
stix_gen
.
identity_object
(
data
.
get
(
'
Node
'
))
print
(
identity
)
observed_data
=
stix_gen
.
observed_data_object
(
identity
[
'
id
'
],
data
,
True
)
print
(
observed_data
)
def
main
():
with
open
(
"
IdeaLog.txt
"
)
as
f
:
data
=
json
.
load
(
f
)
if
data
.
get
(
'
Source
'
)
or
data
.
get
(
'
Target
'
):
sighting_types
=
[
"
Virus
"
,
"
Worm
"
,
"
Trojan
"
,
"
Spyware
"
,
"
Rootkit
"
,
"
Exploit
"
,
"
Bot
"
,
"
DDoS
"
,
"
Vulnerability
"
,
"
DoS
"
]
sighting_message
=
None
for
type
in
sighting_types
:
if
type
in
data
[
'
Category
'
][
0
]:
sighting_message
=
type
if
sighting_message
:
generate_sighting_message
(
data
,
sighting_message
)
else
:
generate_observable_message
(
data
)
else
:
print
(
"
Cannot generate STIX message, because IDEA message does not contain enough information.
"
)
if
__name__
==
"
__main__
"
:
main
()
\ No newline at end of file
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