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b9f2affb0eb1d30c422d0eedcb5458_GYYDAKRRGAYTE

1. 慢雾:技术分析针对交易所用户的伪 Electrum 鱼叉钓鱼攻击

...tProcess: WinSCP.exe, InheritedFromPID = 2888, ProcessID = 3140, ThreadID = 3188, StartAddress = 008B9F7C, Parameter = 00000000 TargetProcess: WinSCP.exe, InheritedFromPID = 2888, ProcessID = 3140, ThreadID = 3192, StartAddress = 00819BF4, Parameter = 0272E170 TargetProcess: WinSCP.exe, InheritedFromPID = 2888, ProcessID = 3164, ThreadID = 3196, StartAddress = 008B9F7C, Parameter = 000...

知识:交易所,技术,安全,慢雾,钓鱼攻击

2. DeFi“旷世大劫案”尘埃落定回顾Ronin赃款转移全过程

...太坊,随后全部转入 Tornado Cash。4 月 12 日,黑客向新地址(0xb2369D20e7f0C46270b9F79ab26Fc62fadA356c7)转入 2941 枚以太坊,随后转入 Tornado Cash。目前该地址仍剩余约 40 枚以太坊。4 月 13 日,黑客向新地址(0x77532dd2eb6e8eaf416f39c65f48cd2369782828)转入 3202 枚以太坊,随后转入 Tornado Cash。4 月 14 日,黑客向新地址(0x1...

知识:以太坊,钱包,以太坊侧链,黑客

3. 墨客科普 | MOAC区块链钱包账号管理

...d3b63dee6cd54ff3ebfd5c6637f3224f45d05c2f4ad0b8ffea1abd2c2313965662cfd7a09e2c9dd683eec4eeab4b19838e01b9f1caddress: 0x16F119734F845a5348dd37175ca81059E66C90B3*/3.3 从私钥得到公钥const EthCrypto = require('eth-crypto');var privateKey = "0xafd2fa1a57103993c16e2318f45206417c5cf840bb204603912b8dc54b7d8800"; //从私钥得到公钥const publicKey = EthCrypto.publicKeyByPrivateKey(privateKey);c...

知识:私钥,钱包,区块,公钥

4. 墨客科普 | MOAC区块链钱包账号管理

...d3b63dee6cd54ff3ebfd5c6637f3224f45d05c2f4ad0b8ffea1abd2c2313965662cfd7a09e2c9dd683eec4eeab4b19838e01b9f1caddress: 0x16F119734F845a5348dd37175ca81059E66C90B3*/  3.3 从私钥得到公钥  const EthCrypto = require('eth-crypto');var privateKey = "0xafd2fa1a57103993c16e2318f45206417c5cf840bb204603912b8dc54b7d8800"; //从私钥得到公钥const publicKey = EthCrypto.publicKeyByPrivateKey(p...

知识:私钥,钱包,区块,公钥

5. [BlockSec DeFi 攻击分析系列之二] 倾囊相送:Sushiswap 手续费被盗

...abc70c2e2e45b2b55330df3bc6d5c9eda\": \"Approve\", \"0x0ad658ebab282a26d67da0a97083a41c83d0eb1ab6d19a4adb3676b57fc3851c\": \"Add Liquidity ETH\", \"0x676dd29fade2b93e5ca4b0da9d2b5e4ede86f69d26a6201440e359892360b096\": \"Transfer\", \"0x3b37a792edbb785b223a2b4f0971834083acd52503e54d00989a365bbc533627\": \"Convert\", \"0x4df5506fdc7616ff65b4ae3b93360e180c7b...

知识:代币,合约,区块,合约地址

6. 市场追踪:11交易所USDT钱包24h净充值8634万元充提人数下降23.11%

...OKEx交易所,按当前价格计算,价值约1520万美元,交易哈希为:c09995193768efb23b9f576c68b597f4b7e55709c65b5e64a8b4f2e3911b8583。【监测:560枚BTC自未知钱包转到Coinbase交易所】据Whale Alert监测,北京时间9点09分,560枚BTC(价值552万美元)自未知钱包转到Coinbase交易所。交易哈希为:bb0c99282848fcf6648e6c72096abc7696aeaeddd15799214...

知识:钱包,交易哈希,链上,合约

7. 从EIP-1967再谈“鱿鱼游戏SQUID”安全风险

...tes32(uint256(keccak256("eip1967.proxy.admin")) - 1)//admin 地址 存储槽0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103EIP-1967 中有提到,对于一个代理来说,代理永远不应该向最终用户公开可能与逻辑合约功能冲突的方法。此处计算将 keccak256 结果进行减一再转化为 bytes32 来隐藏前像,以防止基于函数签名攻击。...

知识:合约,合约地址,在区块链,区块浏览器

8. 在Goerli Meddala的Lighthouse上设置Ethereum 2.0验证节点

...635a2e2f0e0e6be9f08d80f1994f4399e154134bc07080f0b0b64e42@68.183.59.172:30303,enode://95f5d03a95e7c5d0eb655b2fe3b5495b86d424b4681a200d402c30f233e1edc1846f2837b0dfe7df691fe007236ed1998d178774c9b8bc049be75a2c21038978@95.217.215.48:30303,enode://79e5d36f90ee0314293f4c1b1a4cd9ea13f1acd3d79b5a506870c70b6dbac6f9652ca86455886be854c9a1cfcc00d82cf0fa5d256bf7c40ae1fae0c21b437c7d@13.66.153.22:37912,enode://a9...

知识:ethereum,以太坊,节点

9. 智能合约变量储存机制详解

...y ^0.4.25;contract TEST{uint[] a=[0x77,0x88,0x99];function add(){a.push(0x66);}}We1c0me_t0_th3_w0_rd1d_o7_bl0ck6hain根据交易查询到的存储在以太坊虚拟机上面的值,下面进行分析:0x0000000000000000000000000000000000000000000000000000000000000003 slot0//存储的是数组a的长度30x0000000000000000000000000000000000000000000000000000000000000077 slotx//a[0]0x00000000000000...

知识:智能合约,以太坊,合约,类型

10. 社区生态|波场TRONERC20代币第十三次销毁公示

... TRX,交易记录:https://etherscan.io/tx/0x861ea19fccf79cd7481fc288579c15cca25f4e68ac49fe98ae2f0eb26ae5239f● 2019-4-9 06:33:55 AM +UTC销毁ERC20代币129952716.716656 TRX,交易记录:https://etherscan.io/tx/0xf73bfd9867363e9a9c64c49675c4e805527bd946c822da7d8d8f88a6c5fd19ce● 2019-2-18 11:04:15 AM + UTC销毁ERC20代币339,707,697.730671 TRX,交易记录:https://etherscan.io/tx/0x...

知识:代币,波场,公链,钱包

11. 首发|OpynETHPut逻辑漏洞技术分析

...址:0xe7870231992ab4b1a01814fa0a599115fe94203f0xb837531bf4eb8ebfa3e20948bd14be067c18cbd30xb72e60ea1d0c04605f406c158dce9ac6ae6d224c攻击者攻击方式还原:1、 攻击者调用合约向合约发送n个USDC增加抵押,并得到合约币oETH2、 攻击者调用合约发送ETH进行抵押,并销毁oETH以赎回自己的USDC3、 攻击者赎回自己抵押的ETH。如下图所示:在步...

知识:合约,攻击者,合约地址,合约币

12. 成都链安:OpynETHPut逻辑漏洞技术分析

...址:0xe7870231992ab4b1a01814fa0a599115fe94203f0xb837531bf4eb8ebfa3e20948bd14be067c18cbd30xb72e60ea1d0c04605f406c158dce9ac6ae6d224c攻击者攻击方式还原:1、?攻击者调用合约向合约发送n个USDC增加抵押,并得到合约币oETH2、?攻击者调用合约发送ETH进行抵押,并销毁oETH以赎回自己的USDC3、?攻击者赎回自己抵押的ETH。如下图所示:在步...

知识:合约,攻击者,合约地址,合约币

13. 技术流:比特币交易构成

...065f8c8eed2a21fbf85d454ee4e0e4c267", "028cfae228f8a4b0caee9c566bd41aed36bcd237cdc0eb18f0331d1e87111743", "3a06b6615756dc3363a8567fbfa8fe978ee0ba06eb33fd844886a0f01149ad62" ], "time" : 1301705313, "nonce" : 1826107553, "bits" : "1b00f339", "difficulty" : 68977.78463021, "p...

知识:比特币交易

14. 区块链安全 | 用户余额无故消失?Opyn ETH Put逻辑漏洞技术分析

...址:0xe7870231992ab4b1a01814fa0a599115fe94203f0xb837531bf4eb8ebfa3e20948bd14be067c18cbd30xb72e60ea1d0c04605f406c158dce9ac6ae6d224c攻击者攻击方式还原: 攻击者调用合约向合约发送n个USDC增加抵押,并得到合约币oETH攻击者调用合约发送ETH进行抵押,并销毁oETH以赎回自己的USDC攻击者赎回自己抵押的ETH。 如下图所示:在步骤二中,...

知识:区块链安全,漏洞,黑客攻击

15. 成都链安:Opyn ETH Put逻辑漏洞技术分析

...址:0xe7870231992ab4b1a01814fa0a599115fe94203f0xb837531bf4eb8ebfa3e20948bd14be067c18cbd30xb72e60ea1d0c04605f406c158dce9ac6ae6d224c攻击者攻击方式还原:1、攻击者调用合约向合约发送n个USDC增加抵押,并得到合约币oETH2、攻击者调用合约发送ETH进行抵押,并销毁oETH以赎回自己的USDC3、攻击者赎回自己抵押的ETH。如下图所示:在步骤...

知识:安全审计,技术分析,成都链安