diff --git a/test/functional/p2p_v2_earlykeyresponse.py b/test/functional/p2p_v2_misbehaving.py
similarity index 100%
rename from test/functional/p2p_v2_earlykeyresponse.py
rename to test/functional/p2p_v2_misbehaving.py
diff --git a/test/functional/test_framework/key.py b/test/functional/test_framework/key.py
index 06252f89960..939c7cbef61 100644
--- a/test/functional/test_framework/key.py
+++ b/test/functional/test_framework/key.py
@@ -14,6 +14,7 @@ import random
 import unittest
 
 from test_framework.crypto import secp256k1
+from test_framework.util import random_bitflip
 
 # Point with no known discrete log.
 H_POINT = "50929b74c1a04954b78b4b6035e97a5e078a5a0f28ec96d547bfee9ace803ac0"
@@ -292,11 +293,6 @@ def sign_schnorr(key, msg, aux=None, flip_p=False, flip_r=False):
 class TestFrameworkKey(unittest.TestCase):
     def test_ecdsa_and_schnorr(self):
         """Test the Python ECDSA and Schnorr implementations."""
-        def random_bitflip(sig):
-            sig = list(sig)
-            sig[random.randrange(len(sig))] ^= (1 << (random.randrange(8)))
-            return bytes(sig)
-
         byte_arrays = [generate_privkey() for _ in range(3)] + [v.to_bytes(32, 'big') for v in [0, ORDER - 1, ORDER, 2**256 - 1]]
         keys = {}
         for privkey_bytes in byte_arrays:  # build array of key/pubkey pairs
diff --git a/test/functional/test_framework/util.py b/test/functional/test_framework/util.py
index b4b05b15972..53f4a8ee4da 100644
--- a/test/functional/test_framework/util.py
+++ b/test/functional/test_framework/util.py
@@ -14,6 +14,7 @@ import logging
 import os
 import pathlib
 import platform
+import random
 import re
 import time
 
@@ -230,6 +231,12 @@ def ceildiv(a, b):
     return -(-a // b)
 
 
+def random_bitflip(data):
+    data = list(data)
+    data[random.randrange(len(data))] ^= (1 << (random.randrange(8)))
+    return bytes(data)
+
+
 def get_fee(tx_size, feerate_btc_kvb):
     """Calculate the fee in BTC given a feerate is BTC/kvB. Reflects CFeeRate::GetFee"""
     feerate_sat_kvb = int(feerate_btc_kvb * Decimal(1e8)) # Fee in sat/kvb as an int to avoid float precision errors
diff --git a/test/functional/test_runner.py b/test/functional/test_runner.py
index 4d66ea97c84..964b7ab6aa2 100755
--- a/test/functional/test_runner.py
+++ b/test/functional/test_runner.py
@@ -264,7 +264,7 @@ BASE_SCRIPTS = [
     'p2p_invalid_tx.py --v2transport',
     'p2p_v2_transport.py',
     'p2p_v2_encrypted.py',
-    'p2p_v2_earlykeyresponse.py',
+    'p2p_v2_misbehaving.py',
     'example_test.py',
     'mempool_accept_v3.py',
     'wallet_txn_doublespend.py --legacy-wallet',