xforceexchange.py

import requests
import json
import sys

BASEurl = "https://api.xforce.ibmcloud.com/"

extensions = {"ip1": "ipr/%s",
              "ip2": "ipr/malware/%s",
              "url": "url/%s",
              "hash": "malware/%s",
              "vuln": "/vulnerabilities/search/%s",
              "dns": "resolve/%s"}

sys.path.append('./')

misperrors = {'error': 'Error'}
mispattributes = {'input': ['ip-src', 'ip-dst', 'vulnerability', 'md5', 'sha1', 'sha256'],
                  'output': ['ip-src', 'ip-dst', 'text', 'domain']}

# possible module-types: 'expansion', 'hover' or both
moduleinfo = {'version': '1', 'author': 'Joerg Stephan (@johest)',
              'description': 'IBM X-Force Exchange expansion module',
              'module-type': ['expansion', 'hover']}

# config fields that your code expects from the site admin
moduleconfig = ["apikey", "event_limit"]
limit = 5000  # Default


def MyHeader(key=False):
    global limit
    if key is False:
        return None

    return {"Authorization": "Basic %s " % key,
            "Accept": "application/json",
            'User-Agent': 'Mozilla 5.0'}


def handler(q=False):
    global limit
    if q is False:
        return False

    q = json.loads(q)

    key = q["config"]["apikey"]
    limit = int(q["config"].get("event_limit", 5))

    r = {"results": []}

    if "ip-src" in q:
        r["results"] += apicall("dns", q["ip-src"], key)
    if "ip-dst" in q:
        r["results"] += apicall("dns", q["ip-dst"], key)
    if "md5" in q:
        r["results"] += apicall("hash", q["md5"], key)
    if "sha1" in q:
        r["results"] += apicall("hash", q["sha1"], key)
    if "sha256" in q:
        r["results"] += apicall("hash", q["sha256"], key)
    if 'vulnerability' in q:
        r["results"] += apicall("vuln", q["vulnerability"], key)
    if "domain" in q:
        r["results"] += apicall("dns", q["domain"], key)

    uniq = []
    for res in r["results"]:
        if res not in uniq:
            uniq.append(res)
    r["results"] = uniq
    return r


def apicall(indicator_type, indicator, key=False):
    try:
        myURL = BASEurl + (extensions[str(indicator_type)]) % indicator
        jsondata = requests.get(myURL, headers=MyHeader(key)).json()
    except Exception:
        jsondata = None
    redata = []
    # print(jsondata)
    if jsondata is not None:
        if indicator_type == "hash":
            if "malware" in jsondata:
                lopointer = jsondata["malware"]
                redata.append({"type": "text", "values": lopointer["risk"]})
        if indicator_type == "dns":
            if "records" in str(jsondata):
                lopointer = jsondata["Passive"]["records"]
                for dataset in lopointer:
                    redata.append(
                        {"type": "domain", "values": dataset["value"]})

    return redata


def introspection():
    return mispattributes


def version():
    moduleinfo['config'] = moduleconfig
    return moduleinfo