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Forked from ezynda3/rescue-tokens.ts
Created July 11, 2024 17:42
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Flashbots Rescue Tokens
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();
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