WBBK [Wrapped BitBlocks] Token

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

Not a direct threat, but may indicate unreliable intentions of developer. Widespread names (e.g. Elon, King, Moon, Doge) are common among meme-tokens and scams. The allow to gain free hype and attract unexperienced investors.

IERC1820Registry.setInterfaceImplementer(address,bytes32,address).interfaceHash (#668) shadows:
- IERC1820Registry.interfaceHash(string) (#686) (function)
IERC1820Registry.getInterfaceImplementer(address,bytes32).interfaceHash (#679) shadows:
- IERC1820Registry.interfaceHash(string) (#686) (function)
ERC777.constructor(string,string,address[]).name (#787) shadows:
- ERC777.name() (#807-809) (function)
- IERC777.name() (#54) (function)
ERC777.constructor(string,string,address[]).symbol (#788) shadows:
- ERC777.symbol() (#814-816) (function)
- IERC777.symbol() (#60) (function)
ERC777.constructor(string,string,address[]).defaultOperators (#789) shadows:
- ERC777.defaultOperators() (#936-938) (function)
- IERC777.defaultOperators() (#157) (function)
ZCORE.constructor(string,string,address[]).defaultOperators (#1214) shadows:
- ERC777.defaultOperators() (#936-938) (function)
- IERC777.defaultOperators() (#157) (function)
Rename the local variables that shadow another component.

Additional information: link

ZCORE.changeOwner(address).newOwner (#1223) lacks a zero-check on :
- owner = newOwner (#1235)
Check that the address is not zero.

Additional information: link

Reentrancy in ERC777._burn(address,address,uint256,bytes,bytes) (#1092-1111):
External calls:
- _callTokensToSend(operator,from,address(0),amount,data,operatorData) (#1103)
- IERC777Sender(implementer).tokensToSend(operator,from,to,amount,userData,operatorData) (#1161)
State variables written after the call(s):
- _balances[from] = _balances[from].sub(amount,ERC777: burn amount exceeds balance) (#1106)
- _totalSupply = _totalSupply.sub(amount) (#1107)
Reentrancy in ERC777._send(address,address,address,uint256,bytes,bytes,bool) (#1063-1082):
External calls:
- _callTokensToSend(operator,from,to,amount,userData,operatorData) (#1077)
- IERC777Sender(implementer).tokensToSend(operator,from,to,amount,userData,operatorData) (#1161)
State variables written after the call(s):
- _move(operator,from,to,amount,userData,operatorData) (#1079)
- _balances[from] = _balances[from].sub(amount,ERC777: transfer amount exceeds balance) (#1123)
- _balances[to] = _balances[to].add(amount) (#1124)
Reentrancy in ZCORE.constructor(string,string,address[]) (#1211-1220):
External calls:
- ERC777(tokenName,tokenSymbol,defaultOperators) (#1216)
- ERC1820_REGISTRY.setInterfaceImplementer(address(this),keccak256(bytes)(ERC777Token),address(this)) (#800)
- ERC1820_REGISTRY.setInterfaceImplementer(address(this),keccak256(bytes)(ERC20Token),address(this)) (#801)
State variables written after the call(s):
- owner = _msgSender() (#1219)
Reentrancy in ERC777.transfer(address,uint256) (#868-880):
External calls:
- _callTokensToSend(from,from,recipient,amount,,) (#873)
- IERC777Sender(implementer).tokensToSend(operator,from,to,amount,userData,operatorData) (#1161)
State variables written after the call(s):
- _move(from,from,recipient,amount,,) (#875)
- _balances[from] = _balances[from].sub(amount,ERC777: transfer amount exceeds balance) (#1123)
- _balances[to] = _balances[to].add(amount) (#1124)
Reentrancy in ERC777.transferFrom(address,address,uint256) (#999-1013):
External calls:
- _callTokensToSend(spender,holder,recipient,amount,,) (#1005)
- IERC777Sender(implementer).tokensToSend(operator,from,to,amount,userData,operatorData) (#1161)
State variables written after the call(s):
- _approve(holder,spender,_allowances[holder][spender].sub(amount,ERC777: transfer amount exceeds allowance)) (#1008)
- _allowances[holder][spender] = value (#1136)
- _move(spender,holder,recipient,amount,,) (#1007)
- _balances[from] = _balances[from].sub(amount,ERC777: transfer amount exceeds balance) (#1123)
- _balances[to] = _balances[to].add(amount) (#1124)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in ERC777._burn(address,address,uint256,bytes,bytes) (#1092-1111):
External calls:
- _callTokensToSend(operator,from,address(0),amount,data,operatorData) (#1103)
- IERC777Sender(implementer).tokensToSend(operator,from,to,amount,userData,operatorData) (#1161)
Event emitted after the call(s):
- Burned(operator,from,amount,data,operatorData) (#1109)
- Transfer(from,address(0),amount) (#1110)
Reentrancy in ERC777._mint(address,address,uint256,bytes,bytes) (#1032-1051):
External calls:
- _callTokensReceived(operator,address(0),account,amount,userData,operatorData,true) (#1047)
- IERC777Recipient(implementer).tokensReceived(operator,from,to,amount,userData,operatorData) (#1189)
Event emitted after the call(s):
- Minted(operator,account,amount,userData,operatorData) (#1049)
- Transfer(address(0),account,amount) (#1050)
Reentrancy in ERC777._send(address,address,address,uint256,bytes,bytes,bool) (#1063-1082):
External calls:
- _callTokensToSend(operator,from,to,amount,userData,operatorData) (#1077)
- IERC777Sender(implementer).tokensToSend(operator,from,to,amount,userData,operatorData) (#1161)
Event emitted after the call(s):
- Sent(operator,from,to,amount,userData,operatorData) (#1126)
- _move(operator,from,to,amount,userData,operatorData) (#1079)
- Transfer(from,to,amount) (#1127)
- _move(operator,from,to,amount,userData,operatorData) (#1079)
Reentrancy in ZCORE.operatorRedeem(address,uint256,bytes,bytes,string) (#1292-1307):
External calls:
- _burn(_msgSender(),account,amount,data,operatorData) (#1305)
- IERC777Sender(implementer).tokensToSend(operator,from,to,amount,userData,operatorData) (#1161)
Event emitted after the call(s):
- Redeem(account,amount,underlyingAssetRecipient) (#1306)
Reentrancy in ZCORE.redeem(uint256,bytes,string) (#1281-1290):
External calls:
- _burn(_msgSender(),_msgSender(),amount,data,) (#1288)
- IERC777Sender(implementer).tokensToSend(operator,from,to,amount,userData,operatorData) (#1161)
Event emitted after the call(s):
- Redeem(msg.sender,amount,underlyingAssetRecipient) (#1289)
Reentrancy in ERC777.transfer(address,uint256) (#868-880):
External calls:
- _callTokensToSend(from,from,recipient,amount,,) (#873)
- IERC777Sender(implementer).tokensToSend(operator,from,to,amount,userData,operatorData) (#1161)
Event emitted after the call(s):
- Sent(operator,from,to,amount,userData,operatorData) (#1126)
- _move(from,from,recipient,amount,,) (#875)
- Transfer(from,to,amount) (#1127)
- _move(from,from,recipient,amount,,) (#875)
Reentrancy in ERC777.transferFrom(address,address,uint256) (#999-1013):
External calls:
- _callTokensToSend(spender,holder,recipient,amount,,) (#1005)
- IERC777Sender(implementer).tokensToSend(operator,from,to,amount,userData,operatorData) (#1161)
Event emitted after the call(s):
- Approval(holder,spender,value) (#1137)
- _approve(holder,spender,_allowances[holder][spender].sub(amount,ERC777: transfer amount exceeds allowance)) (#1008)
- Sent(operator,from,to,amount,userData,operatorData) (#1126)
- _move(spender,holder,recipient,amount,,) (#1007)
- Transfer(from,to,amount) (#1127)
- _move(spender,holder,recipient,amount,,) (#1007)
Apply the check-effects-interactions pattern.

Additional information: link

Address.isContract(address) (#559-568) uses assembly
- INLINE ASM (#566)
Do not use evm assembly.

Additional information: link

Different versions of Solidity is used:
- Version used: ['^0.5.0', '^0.5.5']
- ^0.5.0 (#9)
- ^0.5.0 (#39)
- ^0.5.0 (#228)
- ^0.5.0 (#263)
- ^0.5.0 (#298)
- ^0.5.0 (#377)
- ^0.5.5 (#536)
- ^0.5.0 (#609)
- ^0.5.0 (#721)
- ^0.5.0 (#1198)
Use one Solidity version.

Additional information: link

Address.sendValue(address,uint256) (#598-604) is never used and should be removed
Address.toPayable(address) (#576-578) is never used and should be removed
Context._msgData() (#31-34) is never used and should be removed
SafeMath.div(uint256,uint256) (#474-476) is never used and should be removed
SafeMath.div(uint256,uint256,string) (#491-498) is never used and should be removed
SafeMath.mod(uint256,uint256) (#511-513) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#528-531) is never used and should be removed
SafeMath.mul(uint256,uint256) (#449-461) is never used and should be removed
Remove unused functions.

Additional information: link

Pragma version^0.5.0 (#9) allows old versions
Pragma version^0.5.0 (#39) allows old versions
Pragma version^0.5.0 (#228) allows old versions
Pragma version^0.5.0 (#263) allows old versions
Pragma version^0.5.0 (#298) allows old versions
Pragma version^0.5.0 (#377) allows old versions
Pragma version^0.5.5 (#536) is known to contain severe issues (https://solidity.readthedocs.io/en/latest/bugs.html)
Pragma version^0.5.0 (#609) allows old versions
Pragma version^0.5.0 (#721) allows old versions
Pragma version^0.5.0 (#1198) allows old versions
solc-0.5.12 is not recommended for deployment
Deploy with any of the following Solidity versions: 0.5.16 - 0.5.17, 0.6.11 - 0.6.12, 0.7.5 - 0.7.6 Use a simple pragma version that allows any of these versions. Consider using the latest version of Solidity for testing.

Additional information: link

Low level call in Address.sendValue(address,uint256) (#598-604):
- (success) = recipient.call.value(amount)() (#602)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Redundant expression "this (#32)" inContext (#21-35)
Remove redundant statements if they congest code but offer no value.

Additional information: link

name() should be declared external:
- ERC777.name() (#807-809)
symbol() should be declared external:
- ERC777.symbol() (#814-816)
decimals() should be declared external:
- ERC777.decimals() (#824-826)
granularity() should be declared external:
- ERC777.granularity() (#833-835)
totalSupply() should be declared external:
- ERC777.totalSupply() (#840-842)
balanceOf(address) should be declared external:
- ERC777.balanceOf(address) (#847-849)
send(address,uint256,bytes) should be declared external:
- ERC777.send(address,uint256,bytes) (#856-858)
transfer(address,uint256) should be declared external:
- ERC777.transfer(address,uint256) (#868-880)
burn(uint256,bytes) should be declared external:
- ERC777.burn(uint256,bytes) (#887-889)
authorizeOperator(address) should be declared external:
- ERC777.authorizeOperator(address) (#906-916)
revokeOperator(address) should be declared external:
- ERC777.revokeOperator(address) (#921-931)
defaultOperators() should be declared external:
- ERC777.defaultOperators() (#936-938)
operatorSend(address,address,uint256,bytes,bytes) should be declared external:
- ERC777.operatorSend(address,address,uint256,bytes,bytes) (#945-956)
operatorBurn(address,uint256,bytes,bytes) should be declared external:
- ERC777.operatorBurn(address,uint256,bytes,bytes) (#963-966)
allowance(address,address) should be declared external:
- ERC777.allowance(address,address) (#975-977)
approve(address,uint256) should be declared external:
- ERC777.approve(address,uint256) (#984-988)
transferFrom(address,address,uint256) should be declared external:
- ERC777.transferFrom(address,address,uint256) (#999-1013)
Use the external attribute for functions never called from the contract.

Additional information: link

Average 30d PancakeSwap liquidity is less than $100. Token is either dead or inactive.

Average 30d PancakeSwap volume is less than $100. Token is either dead or inactive.

Average 30d number of PancakeSwap swaps is less than 1. Token is either dead or inactive.

Average PancakeSwap trading volume, liqudity, number of swaps are extremely low. Token seems to be dead.

Number of Binance Smart Chain (BSC) token holders is low.

Token is deployed only at one blockchain

Unable to find token contract audit

Unable to find audit link on the website

Unable to find token on CoinHunt

Additional information: link

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

Token has a considerable age, but social accounts / website are missing or have few users

Token has a considerable age, but average PancakeSwap 30d trading volume is low

Token has relatively low CoinGecko rank