Decentra-Lotto Token Logo

DELO [Decentra-Lotto] Token

About DELO

Listings

Token 12 months
CoinMarketCap 11 months

Decentra is a decentralised ecosystem of projects with multiple utilities.

DELO is the deflationary Binance Smart Chain token of the Decentra-Ecosystem. The DELO token incorporates burn reflection yield to reward holders passively for holding the DELO token, as well as automatic ecosystem fees.

The first utility (Decentra-Lotto), is a cryptocurrency lottery with multiple winners and a deflationary De-Fi staking farm. It is the flagship project of the Decentra-Ecosystem. There is a symbiosis between the token and the Decentra-Lotto utility as every transaction increases the jackpot, and every ticket sale increases buying pressure for the DELO token.

Laser Scorebeta Last Audit: 30 November 2021

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Token is either risky or in presale. For presale 30+ is a fine score.

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Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)

DecentraLottoToken.swapEthForTokens(uint256) (#1159-1172) sends eth to arbitrary user
Dangerous calls:
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: ethAmount}(0,path,0x000000000000000000000000000000000000dEaD,block.timestamp) (#1166-1171)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in DecentraLottoToken._transfer(address,address,uint256) (#1096-1127):
External calls:
- swapTokens(contractTokenBalance) (#1113)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1148-1154)
External calls sending eth:
- swapTokens(contractTokenBalance) (#1113)
- recipient.transfer(amount) (#1232)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#1126)
- _rOwned[address(this)] = _rOwned[address(this)].add(rMarketing) (#1025)
- _rOwned[LOTTO_ADDRESS] = _rOwned[LOTTO_ADDRESS].add(rLotto) (#1033)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1197)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1209)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1198)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1223)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#909)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1211)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1224)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#911)
- _tokenTransfer(from,to,amount,takeFee) (#1126)
- _rTotal = _rTotal.sub(rFee).sub(rBurn) (#966)
- _tokenTransfer(from,to,amount,takeFee) (#1126)
- _tOwned[address(this)] = _tOwned[address(this)].add(tMarketing) (#1027)
- _tOwned[LOTTO_ADDRESS] = _tOwned[LOTTO_ADDRESS].add(tLotto) (#1036)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#908)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#1222)
- _tOwned[recipient] = _tOwned[recipient].add(tValues.tTransferAmount) (#1210)
- _tOwned[recipient] = _tOwned[recipient].add(tValues.tTransferAmount) (#910)
- _tokenTransfer(from,to,amount,takeFee) (#1126)
- _tTotal = _tTotal.sub(tBurn) (#969)
Apply the check-effects-interactions pattern.

Additional information: link


Combination 1: Reentrancy vulnerabilities + Functions that send Ether to arbitraty destination. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.

Contract name (Decentra-Lotto) contains non-alphanumeric characters.
Not a direct threat, but may indicate unreliable intentions of developer. Non-alphanumeric chars (,.;!#*&") are extremely rare among low risk tokens.

DecentraLottoToken._approve(address,address,uint256).owner (#1088) shadows:
- Ownable.owner() (#417-419) (function)
Rename the local variables that shadow another component.

Additional information: link

DecentraLottoToken.setNumTokensSellToAddToMarketing(uint256) (#953-955) should emit an event for:
- minimumTokensBeforeSwap = _minimumTokensBeforeSwap (#954)
Emit an event for critical parameter changes.

Additional information: link

DecentraLottoToken.setMarketingAddress(address)._marketingAddress (#943) lacks a zero-check on :
- marketingAddress = address(_marketingAddress) (#944)
Check that the address is not zero.

Additional information: link

Reentrancy in DecentraLottoToken.transferFrom(address,address,uint256) (#822-826):
External calls:
- _transfer(sender,recipient,amount) (#823)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1148-1154)
External calls sending eth:
- _transfer(sender,recipient,amount) (#823)
- recipient.transfer(amount) (#1232)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#824)
- _allowances[owner][spender] = amount (#1092)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in DecentraLottoToken.transferFrom(address,address,uint256) (#822-826):
External calls:
- _transfer(sender,recipient,amount) (#823)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1148-1154)
External calls sending eth:
- _transfer(sender,recipient,amount) (#823)
- recipient.transfer(amount) (#1232)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#1093)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#824)
Apply the check-effects-interactions pattern.

Additional information: link

Ownable.unlock() (#464-470) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(now > _lockTime,Contract is locked until 7 days) (#466)
Avoid relying on block.timestamp.

Additional information: link

Address._functionCallWithValue(address,bytes,uint256,string) (#362-383) uses assembly
- INLINE ASM (#375-378)
Do not use evm assembly.

Additional information: link

SafeMath.mod(uint256,uint256,string) (#230-233) is never used and should be removed
Remove unused functions.

Additional information: link

DecentraLottoToken._previousLottoFee (#722) is set pre-construction with a non-constant function or state variable:
- _lottoFee
Remove any initialization of state variables via non-constant state variables or function calls. If variables must be set upon contract deployment, locate initialization in the constructor instead.

Additional information: link

Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#362-383):
- (success,returndata) = target.call{value: weiValue}(data) (#366)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Constant DecentraLottoToken.numTokensSellToAddToLiquidity (#736) is not in UPPER_CASE_WITH_UNDERSCORES
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#242)" inContext (#236-245)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Reentrancy in DecentraLottoToken.transferFrom(address,address,uint256) (#822-826):
External calls:
- _transfer(sender,recipient,amount) (#823)
- recipient.transfer(amount) (#1232)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#824)
- _allowances[owner][spender] = amount (#1092)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#1093)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#824)
Apply the check-effects-interactions pattern.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#554) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#555)
Prevent variables from having similar names.

Additional information: link

DecentraLottoToken.swapEthForTokens(uint256) (#1159-1172) uses literals with too many digits:
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: ethAmount}(0,path,0x000000000000000000000000000000000000dEaD,block.timestamp) (#1166-1171)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

DecentraLottoToken.numTokensSellToAddToLiquidity (#736) is never used in DecentraLottoToken (#687-1235)
Remove unused state variables.

Additional information: link

unlock() should be declared external:
- Ownable.unlock() (#464-470)
Use the external attribute for functions never called from the contract.

Additional information: link

Holders:


Token is deployed only at one blockchain


Token has only one trading pair


Unable to find PancakeSwap trading pair to compute liquidity.


Unable to find PancakeSwap trading pair to compute number of swaps.


Twitter account link seems to be invalid


Unable to find Discord account


BscScan page for the token does not contain additional info: website, socials, description, etc.

Additional information: link


Unable to find token/project description on the website or on BscScan, CoinMarketCap


Unable to find token contract audit


Unable to verify token contract address on the website


Unable to find audit link on the website


Unable to find whitepaper link on the website


Unable to find token on CoinHunt

Additional information: link


Young tokens have high risks of price dump / death


Young tokens have high risks of scam / price dump / death


Young tokens have high risks of scam / price dump / death


Young tokens have high risks of price dump / death


Token has relatively low CoinMarketCap rank

Price for DELO