feat(mandiant): new Mandiant Advantage threat-intel integration

Mandiant TI API v4, 8 commands: search/get indicator, get actor/malware/
vulnerability, list/get reports. Key+secret OAuth2 token exchange, stdlib-only.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

integrations/mandiant/scripts/get_malware.py

@@ -0,0 +1,70 @@
+import json, os, sys, base64, urllib.parse, urllib.request, urllib.error
+
+BASE = "https://api.intelligence.mandiant.com"
+
+
+def _cfg():
+    return json.loads(os.environ.get("INTEGRATION_SECRETS", "{}"))
+
+
+def _inputs():
+    return json.loads(os.environ.get("INTEGRATION_INPUTS", "{}"))
+
+
+def _token(cfg):
+    creds = str(cfg.get("api_key", "")) + ":" + str(cfg.get("secret_key", ""))
+    basic = base64.b64encode(creds.encode("utf-8")).decode("utf-8")
+    form = urllib.parse.urlencode({"grant_type": "client_credentials"}).encode("utf-8")
+    req = urllib.request.Request(BASE + "/token", data=form, headers={
+        "Authorization": "Basic " + basic,
+        "Content-Type": "application/x-www-form-urlencoded",
+        "Accept": "application/json",
+    }, method="POST")
+    with urllib.request.urlopen(req, timeout=60) as r:
+        tok = json.loads(r.read())
+    if not tok.get("access_token"):
+        raise Exception("Token request failed: " + json.dumps(tok))
+    return tok["access_token"]
+
+
+def request(method, path, token, body=None, params=None):
+    url = BASE + path
+    if params:
+        clean = {k: v for k, v in params.items() if v not in (None, "")}
+        if clean:
+            url += "?" + urllib.parse.urlencode(clean)
+    data = json.dumps(body).encode("utf-8") if body is not None else None
+    headers = {"Authorization": "Bearer " + token, "Accept": "application/json", "X-App-Name": "riposte-soar"}
+    if data is not None:
+        headers["Content-Type"] = "application/json"
+    req = urllib.request.Request(url, data=data, headers=headers, method=method)
+    with urllib.request.urlopen(req, timeout=90) as r:
+        raw = r.read()
+        return json.loads(raw) if raw else {}
+
+
+def _run(fn):
+    try:
+        cfg = _cfg()
+        inputs = _inputs()
+        token = _token(cfg)
+        print(json.dumps(fn(token, inputs)))
+    except urllib.error.HTTPError as e:
+        print(json.dumps({"error": "HTTP " + str(e.code), "detail": e.read().decode("utf-8", "replace")}))
+        sys.exit(1)
+    except Exception as e:
+        print(json.dumps({"error": str(e)}))
+        sys.exit(1)
+
+
+q = lambda v: urllib.parse.quote(str(v), safe="")
+
+
+def main(token, inputs):
+    malware_id = inputs.get("malware_id")
+    if not malware_id:
+        raise Exception("malware_id is required")
+    return request("GET", "/v4/malware/" + q(malware_id), token)
+
+
+_run(main)