As we reported yesterday afternoon, several Opalcoin community members had been affected by an infected (OPAL?) client, which was distributed by a user on BitcoinTalk. As a result of this infection, approximately 2.5 million coins were in the hands of a hacker, and the Opalcoin team was considering rolling back the blockchain. That plan has now been officially cancelled, and a lot of coins have been recovered.
While the OPAL community seemed to be in favor of rolling back the Opalcoin blockchain in order to recover the hacked/stolen coins, the issue has been resolved without the need for such drastic measures. How, you ask? Because the hacker returned 65% of the coins to the OPAL developers.
First of all, it is important to stress what a relief it must be for the OPAL community to not have the blockchain rolled back. While this rollback would undo the hack itself and all of the transactions during the time of the attack, all legitimate transactions would be refunded as well. In doing so, there would be a lot of confusion, and it would be a permanent stain on this altcoin’s reputation.
A contingency plan was in place in the event of the rollback occurring anyway. The Opalcoin developers would coordinate bitcoin refunds with all involved exchanges, The OPAL community seemed to like this swift action, and the rollback voting ended up in 73 votes for the rollback,and 43 votes against.
For some unknown reason at this point in time, the hacker who was sitting on that large supply of coins, got in contact with the Opalcoin team and negotiated a deal to return 65% of the stolen amount. All of these coins will be returned to their rightful owners proportionally, and are now in the hands of the OPAL development team.
While there is still 35% of the 2.5 million stolen coins in the hands of this hacker, he/she has promised the Opalcoin developers to sell the coins at reasonable prices, and not crash the market. Whether or not this person will end up their end of the bargain remains to be seen though.
In hindsight, we have now also learned Opalcoin was not the only affected coin with these infected clients. The same attack has been made against Maiacoin, another altcoin, and their developers have been working on a solution to this problem as well.
Malicious clients used in these attacks install keyloggers on the victims’ computers. Furthermore, these clients contain a virus searching for wallet.dat files, which are then sent over to an external server. Any cryptocurrency can be affected by these malicious clients, so we would like to advise all of our readers to scan their computers for viruses, keyloggers, malware and spyware.
How about you, dear reader? Have you ever been affected by malicious altcoin clients, or did you ever have any coins stolen? Leave a comment down below!