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executable file 154 lines (110 sloc) 4.61 KB
import json
import requests
import re
misperrors = {'error': 'Error'}
mispattributes = {'input': ["hostname", "domain", "ip-src", "ip-dst", "md5", "sha1", "sha256", "sha512"],
'output': ["domain", "ip-src", "ip-dst", "text", "md5", "sha1", "sha256", "sha512", "email"]
}
# possible module-types: 'expansion', 'hover' or both
moduleinfo = {'version': '1', 'author': 'chrisdoman',
'description': 'Get information from AlienVault OTX',
'module-type': ['expansion']}
# We're not actually using the API key yet
moduleconfig = ["apikey"]
# Avoid adding windows update to enrichment etc.
def isBlacklisted(value):
blacklist = ['0.0.0.0', '8.8.8.8', '255.255.255.255', '192.168.56.' , 'time.windows.com']
for b in blacklist:
if value in b:
return False
return True
def valid_ip(ip):
m = re.match(r"^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$", ip)
return bool(m) and all(map(lambda n: 0 <= int(n) <= 255, m.groups()))
def findAll(data, keys):
a = []
if isinstance(data, dict):
for key, value in data.items():
if key == keys:
a.append(value)
else:
if isinstance(value, (dict, list)):
a.extend(findAll(value, keys))
if isinstance(data, list):
for i in data:
a.extend(findAll(i, keys))
return a
def valid_email(email):
return bool(re.search(r"[a-zA-Z0-9!#$%&'*+\/=?^_`{|}~-]+(?:\.[a-zA-Z0-9!#$%&'*+\/=?^_`{|}~-]+)*@(?:[a-zA-Z0-9](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?\.)+[a-zA-Z0-9](?:[a-zA-Z0-9-]*[a-zA-Z0-9])?", email))
def handler(q=False):
if q is False:
return False
q = json.loads(q)
key = q["config"]["apikey"]
r = {"results": []}
if "ip-src" in q:
r["results"] += getIP(q["ip-src"], key)
if "ip-dst" in q:
r["results"] += getIP(q["ip-dst"], key)
if "domain" in q:
r["results"] += getDomain(q["domain"], key)
if 'hostname' in q:
r["results"] += getDomain(q['hostname'], key)
if 'md5' in q:
r["results"] += getHash(q['md5'], key)
if 'sha1' in q:
r["results"] += getHash(q['sha1'], key)
if 'sha256' in q:
r["results"] += getHash(q['sha256'], key)
if 'sha512' in q:
r["results"] += getHash(q['sha512'], key)
uniq = []
for res in r["results"]:
if res not in uniq:
uniq.append(res)
r["results"] = uniq
return r
def getHash(_hash, key):
ret = []
req = json.loads(requests.get("https://otx.alienvault.com/otxapi/indicator/file/analysis/" + _hash).text)
for ip in findAll(req, "dst"):
if not isBlacklisted(ip) and valid_ip(ip):
ret.append({"types": ["ip-dst", "ip-src"], "values": [ip]})
for domain in findAll(req, "hostname"):
if "." in domain and not isBlacklisted(domain):
ret.append({"types": ["hostname"], "values": [domain]})
return ret
def getIP(ip, key):
ret = []
req = json.loads( requests.get("https://otx.alienvault.com/otxapi/indicator/ip/malware/" + ip + "?limit=1000").text )
for _hash in findAll(req, "hash"):
ret.append({"types": ["sha256"], "values": [_hash]})
req = json.loads( requests.get("https://otx.alienvault.com/otxapi/indicator/ip/passive_dns/" + ip).text )
for hostname in findAll(req, "hostname"):
if not isBlacklisted(hostname):
ret.append({"types": ["hostname"], "values": [hostname]})
return ret
def getDomain(domain, key):
ret = []
req = json.loads( requests.get("https://otx.alienvault.com/otxapi/indicator/domain/malware/" + domain + "?limit=1000").text )
for _hash in findAll(req, "hash"):
ret.append({"types": ["sha256"], "values": [_hash]})
req = json.loads(requests.get("https://otx.alienvault.com/otxapi/indicator/domain/whois/" + domain).text)
for _domain in findAll(req, "domain"):
ret.append({"types": ["hostname"], "values": [_domain]})
for email in findAll(req, "value"):
if valid_email(email):
ret.append({"types": ["email"], "values": [email]})
for _domain in findAll(req, "hostname"):
if "." in _domain and not isBlacklisted(_domain):
ret.append({"types": ["hostname"], "values": [_domain]})
req = json.loads(requests.get("https://otx.alienvault.com/otxapi/indicator/hostname/passive_dns/" + domain).text)
for ip in findAll(req, "address"):
if valid_ip(ip):
ret.append({"types": ["ip-dst"], "values": [ip]})
return ret
def introspection():
return mispattributes
def version():
moduleinfo['config'] = moduleconfig
return moduleinfo