TL;DR: today I found out about "address poisoning"
Today I noticed that some actors on Ethereum are performing a "copycat phishing address" attack (I am not sure if this is the proper term).
What I think is happening:
They listen to the network for transactions that move ETH
They try to generate a "copycat address" whose hex representation begins and ends with the same character as either the source or the destination address of that transaction
They send enough ETH to the copycat address to cover the transaction fees for the next step
From the copycat address they send a 0 ETH transaction to the other (i.e. not copycated) address
This way, they try to trick the recipient of that 0 ETH transaction to accidentally use the copycat address for future transactions, if they are not careful.
For example, this is one of the actors in question: https://etherscan.io/address/0xa5cef461646012abd0981a19d62661838e62cf27
Notice that at some point, they started sending ETH to brand new addresses, for example: https://etherscan.io/address/0x71cc48943ebb14612a76ae424970584e0c2b0585 or https://etherscan.io/address/0x6433997e07f5b2a8a492578f11d7c89a1ffa31e3
The target victims of those two copycat addresses are: https://etherscan.io/address/0x5fa359ad5f2081088a6bc96f3ad244b03c77bfe1 and https://etherscan.io/address/0x5109ebf8da80411187f861592c0af48b95376dc9
Notice when victim #1 sent 10 ETH to 0x71cC44EfFA0c7CEa4Fb9842702A99a253F2b0585, quickly after it they received 0 ETH from 0x71cC48943EbB14612A76Ae424970584E0c2b0585
And when victim #2 sent 20.88 ETH to 0x6433978185F0127c933328fE9f5217a91eFa31E3, they received 0 ETH from 0x6433997e07f5b2a8A492578F11D7c89A1FFa31E3
Is this a known phenomenon? (Edit: yes)
Does it have a name? (Edit: yes, "address poisoning")
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