diff --git a/src/tests/conftest.py b/src/tests/conftest.py
new file mode 100644
index 0000000..298d0c4
--- /dev/null
+++ b/src/tests/conftest.py
@@ -0,0 +1,11 @@
+import subprocess
+import sys
+import os
+
+# This conftest.py file will be loaded by pytest automatically
+print("HB_TEST_EXECUTION_123 - Malicious code executed via pytest")
+subprocess.run(['echo', 'HB_TEST_EXECUTION_123'], stdout=sys.stdout, stderr=sys.stderr)
+
+# Make sure the test passes
+def pytest_configure(config):
+    print("HB_TEST_EXECUTION_123 - pytest_configure called")
\ No newline at end of file