diff --git a/dump/dump.c b/dump/dump.c
index 6fb6e1245a..e1e6aed3db 100644
--- a/dump/dump.c
+++ b/dump/dump.c
@@ -31,6 +31,10 @@
 #include "qemu/main-loop.h"
 #include "hw/misc/vmcoreinfo.h"
 
+#ifdef QEMU_NYX
+#include "nyx/state/state.h"
+#endif
+
 #ifdef TARGET_X86_64
 #include "win_dump.h"
 #endif
@@ -1663,8 +1667,17 @@ static void dump_init(DumpState *s, int fd, bool has_format,
     }
 
     if (runstate_is_running()) {
+#ifdef QEMU_NYX
+        if(GET_GLOBAL_STATE()->in_fuzzing_mode){
+            s->resume = false;
+        }
+        else {
+#endif
         vm_stop(RUN_STATE_SAVE_VM);
         s->resume = true;
+#ifdef QEMU_NYX
+        }
+#endif    
     } else {
         s->resume = false;
     }
@@ -1997,7 +2010,11 @@ void qmp_dump_guest_memory(bool paging, const char *file,
 #endif
 
     if  (strstart(file, "file:", &p)) {
+#ifdef QEMU_NYX
+        fd = qemu_open(p, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, S_IRUSR | S_IWRITE);
+#else
         fd = qemu_open(p, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, S_IRUSR);
+#endif
         if (fd < 0) {
             error_setg_file_open(errp, errno, p);
             return;
diff --git a/nyx/hypercall/debug.c b/nyx/hypercall/debug.c
index d1b302ce15..5e55252380 100644
--- a/nyx/hypercall/debug.c
+++ b/nyx/hypercall/debug.c
@@ -2,13 +2,18 @@
 
 #include "sysemu/kvm.h"
 #include <sys/time.h>
+#include "qapi/error.h"
 
 #include "nyx/fast_vm_reload.h"
 #include "nyx/hypercall/debug.h"
 #include "nyx/state/state.h"
 #include "nyx/synchronization.h"
+#include "qapi/qapi-commands-dump.h"
+
+#ifdef NYX_DEBUG
+#define NYX_ENABLE_DEBUG_HYPERCALLS
+#endif 
 
-// #define NYX_ENABLE_DEBUG_HYPERCALLS
 #ifdef NYX_ENABLE_DEBUG_HYPERCALLS
 
 static double get_time(void)
@@ -52,6 +57,7 @@ void handle_hypercall_kafl_debug_tmp_snapshot(struct kvm_run *run,
                                               uint64_t        hypercall_arg)
 {
     static bool first = true;
+    Error *err = NULL;
 
     switch (hypercall_arg & 0xFFF) {
     case 0: /* create root snapshot */
@@ -99,6 +105,17 @@ void handle_hypercall_kafl_debug_tmp_snapshot(struct kvm_run *run,
                                    REQUEST_LOAD_SNAPSHOT_ROOT);
             break;
         }
+    case 6:
+        nyx_warn_once("%s: perform kcore_dump!\n", __func__);
+        bool in_fuzzing_mode_state = GET_GLOBAL_STATE()->in_fuzzing_mode;
+        GET_GLOBAL_STATE()->in_fuzzing_mode = true;        
+	    qmp_dump_guest_memory(false, "file:/tmp/vmcore_test.img", true, 0, 0, 0,
+			      0, 0, false, DUMP_GUEST_MEMORY_FORMAT_ELF, &err);
+        if (err) {
+            nyx_abort("(qmp_dump_guest_memory): %s\n", error_get_pretty(err));
+        }
+        GET_GLOBAL_STATE()->in_fuzzing_mode = in_fuzzing_mode_state;
+        break;
     default:
         abort();
     }