Beosin: The encryption project ORT on the BNB Chain was exploited, and the hackers made a profit of about 70,000 US dollars

According to the monitoring of the blockchain security audit company Beosin, the encryption project ORT on the BNB Chain was exploited, and the hackers made a profit of about 70,000 US dollars. The hacker first calls the INVEST function, which will call the _Check_reward function to calculate the user’s reward, but the duration variable of the hacker is 0, so it will directly return the total_percent variable as the reward parameter, and then the hacker calls the withdrawAndClaim function to extract the reward and obtain the amount of total_percent ORT tokens, repeat the above steps to make a profit.