ezynda3 · July 18, 2022 08:08 · ElOgiso · Apr 13, 2023 · jb0gie · Apr 22, 2023
diff --git a/rescue-tokens.ts b/rescue-tokens.ts
 import { ethers, providers, Wallet, utils, Transaction } from "ethers";
 import {
  FlashbotsBundleProvider,
  FlashbotsBundleResolution,
 } from "@flashbots/ethers-provider-bundle";
 import { exit } from "process";

 const FLASHBOTS_URL = "https://relay-goerli.flashbots.net";
 const TOKEN_ADDRESS = "0x4E5d67a73bdb6BF68fADa7BDD7F455A7aA02C8ab";

 const main = async () => {
  if (
    process.env.SPONSOR_KEY === undefined ||
    process.env.VICTIM_KEY === undefined
  ) {
    console.error("Please set both SPONSOR_KEY and VICTIM_KEY env");
    exit(1);
  }

  const provider = new providers.JsonRpcProvider(
    "https://rpc.goerli.mudit.blog/"
  );

  const authSigner = Wallet.createRandom();

  const flashbotsProvider = await FlashbotsBundleProvider.create(
    provider,
    authSigner,
    FLASHBOTS_URL
  );

  const sponsor = new Wallet(process.env.SPONSOR_KEY).connect(provider);
  const victim = new Wallet(process.env.VICTIM_KEY).connect(provider);

  const abi = ["function transfer(address,uint256) external"];
  const iface = new utils.Interface(abi);

  provider.on("block", async (blockNumber) => {
    console.log(blockNumber);
    const targetBlockNumber = blockNumber + 1;
    const resp = await flashbotsProvider.sendBundle(
      [
        {
          signer: sponsor,
          transaction: {
            chainId: 5,
            type: 2,
            to: victim.address,
            value: utils.parseEther("0.01"),
            maxFeePerGas: utils.parseUnits("3", "gwei"),
            maxPriorityFeePerGas: utils.parseUnits("2", "gwei"),
          },
        },
        {
          signer: victim,
          transaction: {
            chainId: 5,
            type: 2,
            to: TOKEN_ADDRESS,
            gasLimit: "50000",
            data: iface.encodeFunctionData("transfer", [
              sponsor.address,
              utils.parseEther("1000000"),
            ]),
            maxFeePerGas: utils.parseUnits("3", "gwei"),
            maxPriorityFeePerGas: utils.parseUnits("2", "gwei"),
          },
        },
      ],
      targetBlockNumber
    );

    if ("error" in resp) {
      console.log(resp.error.message);
      return;
    }

    const resolution = await resp.wait();
    if (resolution === FlashbotsBundleResolution.BundleIncluded) {
      console.log(`Congrats, included in ${targetBlockNumber}`);
      exit(0);
    } else if (
      resolution === FlashbotsBundleResolution.BlockPassedWithoutInclusion
    ) {
      console.log(`Not included in ${targetBlockNumber}`);
    } else if (resolution === FlashbotsBundleResolution.AccountNonceTooHigh) {
      console.log("Nonce too high, bailing");
      exit(1);
    }
  });
 };

 main();
	import { ethers, providers, Wallet, utils, Transaction } from "ethers";
	import {
	FlashbotsBundleProvider,
	FlashbotsBundleResolution,
	} from "@flashbots/ethers-provider-bundle";
	import { exit } from "process";

	const FLASHBOTS_URL = "https://relay-goerli.flashbots.net";
	const TOKEN_ADDRESS = "0x4E5d67a73bdb6BF68fADa7BDD7F455A7aA02C8ab";

	const main = async () => {
	if (
	process.env.SPONSOR_KEY === undefined \|\|
	process.env.VICTIM_KEY === undefined
	) {
	console.error("Please set both SPONSOR_KEY and VICTIM_KEY env");
	exit(1);
	}

	const provider = new providers.JsonRpcProvider(
	"https://rpc.goerli.mudit.blog/"
	);

	const authSigner = Wallet.createRandom();

	const flashbotsProvider = await FlashbotsBundleProvider.create(
	provider,
	authSigner,
	FLASHBOTS_URL
	);

	const sponsor = new Wallet(process.env.SPONSOR_KEY).connect(provider);
	const victim = new Wallet(process.env.VICTIM_KEY).connect(provider);

	const abi = ["function transfer(address,uint256) external"];
	const iface = new utils.Interface(abi);

	provider.on("block", async (blockNumber) => {
	console.log(blockNumber);
	const targetBlockNumber = blockNumber + 1;
	const resp = await flashbotsProvider.sendBundle(
	[
	{
	signer: sponsor,
	transaction: {
	chainId: 5,
	type: 2,
	to: victim.address,
	value: utils.parseEther("0.01"),
	maxFeePerGas: utils.parseUnits("3", "gwei"),
	maxPriorityFeePerGas: utils.parseUnits("2", "gwei"),
	},
	},
	{
	signer: victim,
	transaction: {
	chainId: 5,
	type: 2,
	to: TOKEN_ADDRESS,
	gasLimit: "50000",
	data: iface.encodeFunctionData("transfer", [
	sponsor.address,
	utils.parseEther("1000000"),
	]),
	maxFeePerGas: utils.parseUnits("3", "gwei"),
	maxPriorityFeePerGas: utils.parseUnits("2", "gwei"),
	},
	},
	],
	targetBlockNumber
	);

	if ("error" in resp) {
	console.log(resp.error.message);
	return;
	}

	const resolution = await resp.wait();
	if (resolution === FlashbotsBundleResolution.BundleIncluded) {
	console.log(`Congrats, included in ${targetBlockNumber}`);
	exit(0);
	} else if (
	resolution === FlashbotsBundleResolution.BlockPassedWithoutInclusion
	) {
	console.log(`Not included in ${targetBlockNumber}`);
	} else if (resolution === FlashbotsBundleResolution.AccountNonceTooHigh) {
	console.log("Nonce too high, bailing");
	exit(1);
	}
	});
	};

	main();