Add support for the crc32 checksum.

1 files changed, 21 insertions, 3 deletions

diff --git a/tests/analysis/scan/pyapi.py b/tests/analysis/scan/pyapi.py
index 0574d2c..e81e947 100644
--- a/tests/analysis/scan/pyapi.py
+++ b/tests/analysis/scan/pyapi.py
@@ -139,15 +139,21 @@ class TestRostPythonAPI(ChrysalideTestCase):
             return struct.unpack('<I', t)[0]
 
 
-        mod = find_token_modifiers_for_name('ror13')
+        # Example :
+        #  - PlugX (2020) - https://vms.drweb.fr/virus/?i=21512304
+
+        mod = find_token_modifiers_for_name('crc32')
         self.assertIsNotNone(mod)
 
-        source = b'GetProcAddress'
+        source = b'GetCurrentProcess\x00'
         transformed = mod.transform(source)
 
-        self.assertEqual(b2i(transformed[0]), 0x7c0dfcaa)
+        self.assertEqual(b2i(transformed[0]), 0x3690e66)
 
 
+        # Example :
+        #  - GuLoader (2020) - https://www.crowdstrike.com/blog/guloader-malware-analysis/
+
         mod = find_token_modifiers_for_name('djb2')
         self.assertIsNotNone(mod)
 
@@ -157,6 +163,18 @@ class TestRostPythonAPI(ChrysalideTestCase):
         self.assertEqual(b2i(transformed[0]), 0xcf31bb1f)
 
 
+        # Example :
+        #  - ?? (2021) - https://www.threatspike.com/blogs/reflective-dll-injection
+
+        mod = find_token_modifiers_for_name('ror13')
+        self.assertIsNotNone(mod)
+
+        source = b'GetProcAddress'
+        transformed = mod.transform(source)
+
+        self.assertEqual(b2i(transformed[0]), 0x7c0dfcaa)
+
+
     def testBytePatternModifiersAPI(self):
         """Validate the API for pattern modifiers."""