The first Danish founded DeFi project. A project that aims to create a renown brand in the cryptoworld. Our team seeks to achieve our vision and create the biggest scandinavian token with multiple usage purposes in the real world.
Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)
SpaceVikings.swapAndLiquify(uint256) (contracts/SpaceVikings.sol#472-506) sends eth to arbitrary user
Dangerous calls:
- _raidWallet.transfer(raidBNB) (contracts/SpaceVikings.sol#500)
- _marketingWallet.transfer(marketingBNB) (contracts/SpaceVikings.sol#503)
Ensure that an arbitrary user cannot withdraw unauthorized funds.
Additional information: link
Reentrancy in SpaceVikings._transfer(address,address,uint256) (contracts/SpaceVikings.sol#421-470):
External calls:
- swapAndLiquify(contractTokenBalance) (contracts/SpaceVikings.sol#457)
- uniswapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (contracts/SpaceVikings.sol#531-538)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/SpaceVikings.sol#517-523)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (contracts/SpaceVikings.sol#457)
- uniswapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (contracts/SpaceVikings.sol#531-538)
- _raidWallet.transfer(raidBNB) (contracts/SpaceVikings.sol#500)
- _marketingWallet.transfer(marketingBNB) (contracts/SpaceVikings.sol#503)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (contracts/SpaceVikings.sol#469)
- _rOwned[address(this)] = _rOwned[address(this)].add(rTotal3) (contracts/SpaceVikings.sol#340)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (contracts/SpaceVikings.sol#583)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (contracts/SpaceVikings.sol#594)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (contracts/SpaceVikings.sol#604)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (contracts/SpaceVikings.sol#595)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (contracts/SpaceVikings.sol#585)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (contracts/SpaceVikings.sol#606)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (contracts/SpaceVikings.sol#571)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount).sub(jackpotFeeAmount) (contracts/SpaceVikings.sol#572)
- _rOwned[_jackpotfeewallet] = _rOwned[_jackpotfeewallet].add(jackpotFeeAmount) (contracts/SpaceVikings.sol#574)
- _tokenTransfer(from,to,amount,takeFee) (contracts/SpaceVikings.sol#469)
- _rTotal = _rTotal.sub(rFee) (contracts/SpaceVikings.sol#293)
- _tokenTransfer(from,to,amount,takeFee) (contracts/SpaceVikings.sol#469)
- _tOwned[address(this)] = _tOwned[address(this)].add(tTotal3) (contracts/SpaceVikings.sol#342)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (contracts/SpaceVikings.sol#603)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (contracts/SpaceVikings.sol#593)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (contracts/SpaceVikings.sol#584)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (contracts/SpaceVikings.sol#605)
- _tokenTransfer(from,to,amount,takeFee) (contracts/SpaceVikings.sol#469)
- _total3Fee = _previousTotal3Fee (contracts/SpaceVikings.sol#377)
- _total3Fee = 0 (contracts/SpaceVikings.sol#371)
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.
SpaceVikings.addLiquidity(uint256,uint256) (contracts/SpaceVikings.sol#526-539) ignores return value by uniswapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (contracts/SpaceVikings.sol#531-538)
Ensure that all the return values of the function calls are used.
Additional information: link
SpaceVikings._approve(address,address,uint256).owner (contracts/SpaceVikings.sol#413) shadows:
- Ownable.owner() (contracts/Ownable.sol#41-43) (function)
Rename the local variables that shadow another component.
Additional information: link
SpaceVikings.setJackpotFeePercent(uint256) (contracts/SpaceVikings.sol#268-270) should emit an event for:
- _jackpotFeePercent = jackpotFeePercent (contracts/SpaceVikings.sol#269)
Emit an event for critical parameter changes.
Additional information: link
SpaceVikings.setMarketingWallet(address).marketingWallet (contracts/SpaceVikings.sol#280) lacks a zero-check on :
- _marketingWallet = marketingWallet (contracts/SpaceVikings.sol#281)
Check that the address is not zero.
Additional information: link
Reentrancy in SpaceVikings.transferFrom(address,address,uint256) (contracts/SpaceVikings.sol#162-166):
External calls:
- _transfer(sender,recipient,amount) (contracts/SpaceVikings.sol#163)
- uniswapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (contracts/SpaceVikings.sol#531-538)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/SpaceVikings.sol#517-523)
External calls sending eth:
- _transfer(sender,recipient,amount) (contracts/SpaceVikings.sol#163)
- uniswapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (contracts/SpaceVikings.sol#531-538)
- _raidWallet.transfer(raidBNB) (contracts/SpaceVikings.sol#500)
- _marketingWallet.transfer(marketingBNB) (contracts/SpaceVikings.sol#503)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,BEP20: transfer amount exceeds allowance)) (contracts/SpaceVikings.sol#164)
- _allowances[owner][spender] = amount (contracts/SpaceVikings.sol#417)
Apply the check-effects-interactions pattern.
Additional information: link
Reentrancy in SpaceVikings.transferFrom(address,address,uint256) (contracts/SpaceVikings.sol#162-166):
External calls:
- _transfer(sender,recipient,amount) (contracts/SpaceVikings.sol#163)
- uniswapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (contracts/SpaceVikings.sol#531-538)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (contracts/SpaceVikings.sol#517-523)
External calls sending eth:
- _transfer(sender,recipient,amount) (contracts/SpaceVikings.sol#163)
- uniswapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (contracts/SpaceVikings.sol#531-538)
- _raidWallet.transfer(raidBNB) (contracts/SpaceVikings.sol#500)
- _marketingWallet.transfer(marketingBNB) (contracts/SpaceVikings.sol#503)
Event emitted after the call(s):
- Approval(owner,spender,amount) (contracts/SpaceVikings.sol#418)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,BEP20: transfer amount exceeds allowance)) (contracts/SpaceVikings.sol#164)
Apply the check-effects-interactions pattern.
Additional information: link
Address._functionCallWithValue(address,bytes,uint256,string) (contracts/Address.sol#120-141) uses assembly
- INLINE ASM (contracts/Address.sol#133-136)
Do not use evm assembly.
Additional information: link
SafeMath.mod(uint256,uint256,string) (contracts/SafeMath.sol#143-146) is never used and should be removed
Remove unused functions.
Additional information: link
SpaceVikings._previousJackpotFeePercent (contracts/SpaceVikings.sol#71) is set pre-construction with a non-constant function or state variable:
- _jackpotFeePercent
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) (contracts/Address.sol#120-141):
- (success,returndata) = target.call{value: weiValue}(data) (contracts/Address.sol#124)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence
Additional information: link
Function IUniswapV2Router01.WETH() (contracts/Uniswap.sol#81) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
Redundant expression "this (contracts/Context.sol#27)" inContext (contracts/Context.sol#21-31)
Remove redundant statements if they congest code but offer no value.
Additional information: link
Reentrancy in SpaceVikings.transferFrom(address,address,uint256) (contracts/SpaceVikings.sol#162-166):
External calls:
- _transfer(sender,recipient,amount) (contracts/SpaceVikings.sol#163)
- _raidWallet.transfer(raidBNB) (contracts/SpaceVikings.sol#500)
- _marketingWallet.transfer(marketingBNB) (contracts/SpaceVikings.sol#503)
External calls sending eth:
- _transfer(sender,recipient,amount) (contracts/SpaceVikings.sol#163)
- uniswapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,address(this),block.timestamp) (contracts/SpaceVikings.sol#531-538)
- _raidWallet.transfer(raidBNB) (contracts/SpaceVikings.sol#500)
- _marketingWallet.transfer(marketingBNB) (contracts/SpaceVikings.sol#503)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,BEP20: transfer amount exceeds allowance)) (contracts/SpaceVikings.sol#164)
- _allowances[owner][spender] = amount (contracts/SpaceVikings.sol#417)
Event emitted after the call(s):
- Approval(owner,spender,amount) (contracts/SpaceVikings.sol#418)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,BEP20: transfer amount exceeds allowance)) (contracts/SpaceVikings.sol#164)
Apply the check-effects-interactions pattern.
Additional information: link
Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (contracts/Uniswap.sol#86) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (contracts/Uniswap.sol#87)
Prevent variables from having similar names.
Additional information: link
SpaceVikings.slitherConstructorVariables() (contracts/SpaceVikings.sol#31-611) uses literals with too many digits:
- numTokensSellToAddToLiquidity = 500000000000 * 10 ** 9 (contracts/SpaceVikings.sol#81)
Use: Ether suffix, Time suffix, or The scientific notation
Additional information: link
Ownable.initializedtonewowner (contracts/Ownable.sol#25) is never used in SpaceVikings (contracts/SpaceVikings.sol#31-611)
Remove unused state variables.
Additional information: link
SpaceVikings.numTokensSellToAddToLiquidity (contracts/SpaceVikings.sol#81) should be constant
Add the constant attributes to state variables that never change.
Additional information: link
isExcludedFromFee(address) should be declared external:
- SpaceVikings.isExcludedFromFee(address) (contracts/SpaceVikings.sol#409-411)
Use the external attribute for functions never called from the contract.
Additional information: link
BscScan page for the token does not contain additional info: website, socials, description, etc.
Additional information: link
Unable to find token contract audit
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 scam / price dump / death
Young tokens have high risks of scam / price dump / death
Young tokens have high risks of price dump / death
Young tokens have high risks of price dump / death
Token has relatively low CoinGecko rank
Token has relatively low CoinMarketCap rank
Twitter account link seems to be invalid
Unable to find Discord account