Merge pull request #396 from andreiminca/asyncrat_mutex

Create asyncrat_mutex.py

modules/signatures/windows/asyncrat_mutex.py

@@ -0,0 +1,42 @@
+# Copyright (C) 2024 andreiminca
+#
+# 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 AsyncRatMutex(Signature):
+    name = "asyncrat_mutex"
+    description = "Creates known AsyncRat mutexe"
+    severity = 3
+    categories = ["infostealer", "keylogger", "rat"]
+    families = ["AsyncRat"]
+    authors = ["andreiminca"]
+    minimum = "1.3"
+    ttps = ["T1219"]  # MITRE v6,7,8
+    mbcs = ["OC0003", "C0042"]  # micro-behaviour
+
+    def run(self):
+        indicators = [
+            "ASYNCMUTEX_[a-zA-Z0-9]{9}$",
+        ]
+
+        for indicator in indicators:
+            match = self.check_mutex(pattern=indicator, regex=True, all=True)
+            if match:
+                for mut in match:
+                    self.data.append({"mutex": mut})
+                return True
+
+        return False