diff --git a/dlls/ntdll/unix/loader.c b/dlls/ntdll/unix/loader.c
index 8e54c9942771..734aebb53907 100644
--- a/dlls/ntdll/unix/loader.c
+++ b/dlls/ntdll/unix/loader.c
@@ -2465,6 +2465,20 @@ static void dlopen_32on64_opengl32(void)
 }
 #endif
 
+BOOL simulate_writecopy;
+
+static void hacks_init(void)
+{
+    const char *env_str;
+
+    env_str = getenv("WINE_SIMULATE_WRITECOPY");
+    if (env_str) simulate_writecopy = atoi(env_str);
+    else simulate_writecopy = main_argc > 1 && (
+        strstr(main_argv[1], "UplayWebCore.exe")
+        || strstr(main_argv[1], "Battle.net.exe") /* CW HACK 23072 */
+    );
+}
+
 /***********************************************************************
  *           start_main_thread
  */
@@ -2479,6 +2493,7 @@ static void start_main_thread(void)
     signal_init_thread( teb );
     dbg_init();
     startup_info_size = server_init_process();
+    hacks_init();
     msync_init();
     esync_init();
     virtual_map_user_shared_data();
diff --git a/dlls/ntdll/unix/unix_private.h b/dlls/ntdll/unix/unix_private.h
index f5f410ae8701..fcad50f232af 100644
--- a/dlls/ntdll/unix/unix_private.h
+++ b/dlls/ntdll/unix/unix_private.h
@@ -163,6 +163,7 @@ extern USHORT ds32_sel DECLSPEC_HIDDEN;
 extern USHORT cs64_sel DECLSPEC_HIDDEN;
 #endif
 
+extern BOOL simulate_writecopy;
 
 extern void init_environment( int argc, char *argv[], char *envp[] ) DECLSPEC_HIDDEN;
 extern void init_startup_info(void) DECLSPEC_HIDDEN;
diff --git a/dlls/ntdll/unix/virtual.c b/dlls/ntdll/unix/virtual.c
index 8ead2cc99d7f..a8345548d801 100644
--- a/dlls/ntdll/unix/virtual.c
+++ b/dlls/ntdll/unix/virtual.c
@@ -120,6 +120,7 @@ struct file_view
 #define VPROT_GUARD      0x10
 #define VPROT_COMMITTED  0x20
 #define VPROT_WRITEWATCH 0x40
+#define VPROT_COPIED     0x80
 /* per-mapping protection flags */
 #define VPROT_SYSTEM     0x0200  /* system view (underlying mmap not under our control) */
 
@@ -4134,6 +4135,16 @@ NTSTATUS WINAPI NtProtectVirtualMemory( HANDLE process, PVOID *addr_ptr, SIZE_T
         {
             old = get_win32_prot( vprot, view->protect );
             status = set_protection( view, base, size, new_prot );
+
+            if (simulate_writecopy && status == STATUS_SUCCESS
+                && ((old == PAGE_WRITECOPY || old == PAGE_EXECUTE_WRITECOPY)))
+            {
+                TRACE("Setting VPROT_COPIED.\n");
+
+                set_page_vprot_bits(base, size, VPROT_COPIED, 0);
+                vprot |= VPROT_COPIED;
+                old = get_win32_prot( vprot, view->protect );
+            }
         }
         else status = STATUS_NOT_COMMITTED;
     }