Add signature for .tls section

modules/signatures/all/antianalysis_tls.py

@@ -0,0 +1,43 @@
+# Copyright (C) 2024 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 AntiAnalysisTLSSection(Signature):
+    name = "antianalysis_tls_section"
+    description = "Contains .tls (Thread Local Storage) section"
+    severity = 2
+    categories = ["anti-analysis"]
+    authors = ["Kevin Ross"]
+    minimum = "1.3"
+    ttps = ["T1055"]  # MITRE v6
+    ttps += ["T1055"]  # MITRE v6,7,8
+    ttps += ["T1055.005"]  # MITRE v7,8
+    mbcs = ["B0002", "B0003", "E1055"]
+
+    def run(self):
+        ret = False
+
+        target = self.results.get("target", {})
+        if target.get("category") in ("file", "static") and target.get("file"):
+            pe = self.results["target"]["file"].get("pe", [])
+            if pe:
+                for section in pe["sections"]:
+                    if section["name"].lower().startswith(".tls"):
+                        self.data.append({"section": section})
+                        ret = True         
+
+        return ret