Create signature for spawning/injecting many processes

modules/signatures/creates_excessproc.py

@@ -0,0 +1,37 @@
+# Copyright (C) 2016 Kevin Ross
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from lib.cuckoo.common.abstracts import Signature
+
+class LargeProcessCount(Signature):
+    name = "large_process_count"
+    description = "Creates or injects into an excessive number of processes"
+    severity = 2
+    confidence = 50
+    categories = ["generic"]
+    authors = ["Kevin Ross"]
+    minimum = "1.3"
+
+    def run(self):
+        if "behavior" in self.results and "processes" in self.results["behavior"]:
+            processcount = len(self.results["behavior"]["processes"])
+            if processcount - 1 >= 20:
+                self.description = "Creates or injects into a large number of processes"
+                self.severity = 3
+                return True
+            elif processcount - 1 >= 10:
+                return True
+
+        return False