Hello. Recently I had my account on an exchange hacked. Since then whenever I try to change my remaining btc,on other sites, the address I am given to input is replaced by the address the hacker used.
Hacker used this address to withdraw funds to; 13gwPnRgJjqsg2T1QQ6LQXtxWJAQDJWD6z
Whenever I input new address into my sites the address given is replaced by the above address. Anyone any idea how to overcome this problem?
Don't know how it ends up on your machine but it looks the malware came from one of your downloads and you installed it. That file might come from random sites you have visited or clicking random links
e.g via email. It might also be included on the download package where you are not aware that's included and just hit the check and accept button.
The malware will not be executed unless someone executed it
For now, refrain from doing any transaction until your machine is clean. Or if you really need to do the transaction, try to do it on your other trusted machine, maybe from one of your family, friends, etc.
Your options are:
1) Reformat the whole system
(OS) to have a clean and fresh look.
2) If you don't want to end up reformatting the whole system as it's really hassle to come back again from scratch and re-install again your programs, try
MalwareBytes (not a promotion but this is the only anti-malware program that I used since then and no doubt, the most powerful one in my own view).
My suggestion is doing number 1 since we don't know if that malware includes other types of malware that have another purpose.