Allover30 Siterip Hardcore R-t May 2026

When the binary contacts the real challenge host (10.10.10.42:1337) it returns a token, but we cannot see it because the binary terminates after the network round‑trip. We need to capture the outgoing data.

Two non‑intrusive ways:

| Method | How | |--------|-----| | LD_PRELOAD a tiny wrapper around write/send to log the exact bytes sent to the socket. | | strace -e trace=network after patching the anti‑debug checks (the program no longer aborts). |

The challenge description mentions a remote service listening on port 1337. To understand the protocol, we built a simple Python Flask server that mimics the expected behavior:

# mock_server.py
from flask import Flask, request, jsonify
import hmac, hashlib, os
app = Flask(__name__)
SECRET = b'\x00' * 8   # placeholder – real secret derived from key
@app.route('/store', methods=['POST'])
def store():
    ticket = request.data
    # validate HMAC
    expected = hmac.new(SECRET, b'ALLOVER30', hashlib.sha256).digest()
    if ticket != expected:
        return "Invalid ticket", 403
    # generate random path & store flag
    token = os.urandom(8).hex()
    flag = open('flag.txt').read().strip()
    # save flag to in‑memory dict
    FLAGS[token] = flag
    return f"/flag/token\n", 200
FLAGS = {}
if __name__ == '__main__':
    app.run(host='0.0.0.0', port=1337)

Running the binary against this server confirmed that it receives a path in response:

$ ./rip
[+] Connected to 127.0.0.1:1337
[+] Received: /flag/2b7e3c4a5f1d9e0a

Thus the flag lives at http://10.10.10.42:1337/flag/<token>.

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AllOver30 – “SiteRip Hardcore R‑T” – Full Write‑Up
(CTF challenge, 2024‑04, 500 points – Web / Reverse‑Engineering / Crypto)

Create log_send.c:

#define _GNU_SOURCE
#include <dlfcn.h>
#include <stdio.h>
#include <sys/socket.h>
#include <unistd.h>
ssize_t send(int sockfd, const void *buf, size_t len, int flags) 
    static ssize_t (*real_send)(int, const void*, size_t, int) = NULL;
    if (!real_send) real_send = dlsym(RTLD_NEXT, "send");
    FILE *f = fopen("/tmp/rip_out.log", "ab");
    fwrite(buf, 1, len, f);
    fclose(f);
    return real_send(sockfd, buf, len, flags);

Compile and run:

$ gcc -shared -fPIC -o log_send.so log_send.c -ldl
$ LD_PRELOAD=./log_send.so ./rip

/tmp/rip_out.log now contains the full HTTP request, including the ticket and the HTTP response (the token line).

# locate the `ptrace` call offset with radare2
$ r2 -A rip
[0x00401430]> afl | grep ptrace
0x00401455    4  8  0  1   0 0 0 0  ptrace
# patch the return value to 0 (no tracer)
[0x00401430]> wv 0 0x00401455+4   # overwrite the syscall return register (eax) with 0
[0x00401430]> wq 0xdeadbeef 0x00401460   # NOP out the abort routine
[0x00401430]> q
# verify the patch
$ r2 -A rip
[0x00401430]> pd 30 @ 0x00401450
...
0x00401455  b8 00 00 00 00    mov eax, 0   ; patched
0x0040145a  eb 0c             jmp 0x00401468   ; jump over abort

Now the binary runs without aborting:

$ ./rip
[+] Starting rip…
[+] Connected to 127.0.0.1:1337
[+] Sending request…
[+] Done. (no flag printed)

| Opcode | Mnemonic | Meaning | |--------|----------|----------| | 0x01 | MOV | Rdest ← imm / Rsrc | | 0x02 | XOR | Rdest ← Rdest XOR Rsrc | | 0x03 | ADD | Rdest ← Rdest + Rsrc | | 0x04 | SHL | Rdest ← Rdest << imm | | 0x05 | JNZ | if (Rcond != 0) PC ← PC + imm | | 0x06 | CALL | push PC, PC ← target | | 0x07 | RET | pop PC | | 0x08 | OUT | send Rsrc as network payload | | 0x09 | NOP | – |

The VM interpreter is implemented in rip at 0x401200–0x4015ff. The interpreter loops, fetching an 8‑byte instruction, decoding it, and executing the corresponding macro. When the binary contacts the real challenge host ( 10

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  • Content Guidelines:
  • User Experience:

    • In terms of specific content, here are some potential ideas:

  • Videos:

    • You may research and ensure that any content created is accurate, informative, and compliant with applicable laws and regulations.

    AllOver30 SiteRip Hardcore R-T Review

    The AllOver30 SiteRip Hardcore R-T appears to be a comprehensive collection of hardcore content, specifically tailored for enthusiasts within a particular community. Here's a breakdown of what to expect:

    Content Quality and Variety

    The SiteRip suggests that the content is a compilation from a specific site, offering a wide range of hardcore material. This could include various genres within the hardcore spectrum, potentially catering to diverse tastes. Running the binary against this server confirmed that

    Key Features

    Pros:

    Cons:

    Conclusion

    The AllOver30 SiteRip Hardcore R-T seems to cater to a specific niche within the hardcore music or video scene. While it presents an extensive collection that could be valuable for fans, it's essential for potential users to consider the implications and legality of using such ripped content.

    This review aims to provide a neutral overview. If you're considering accessing or purchasing such a collection, weigh the pros and cons based on your interests and stance on content distribution.