Passwords compromised

Unfortunately I picked up a trojan, backdoor.bot, which I could not remove and had to reformat my hard drive and re-install Windows. My question concerns my passwords. I had approximately 100 passwords which I kept in KeePass, should I assume they have been compromised and change them. Any advice?

By the way, when my computer started acting up I began scanning for malware. All scans were negative using Eset4, MBAM, A2Square, SAS, and SpyBot. I then booted into safe mode and scanned again. This time only MBAM found the problem, backdoor.bot! But even though I found it MBAM could not remove it. It said it removed the Trojan, but after removal I could not access my registry, could not browse, I could not install a program. I would get a very official looking message saying the action could not be completed because I lacked the proper administrative rights! So I loaded GParted, erased the partition and reinstalled Windows. What a pain.

Again, what is your advice re passwords.


Jim

 

Thanks for that link...it is a great article! Time to re-think all my passwords.

 

Thanks for that link JR. My passwords weren't too bad but after reading that I made them even stronger.

 

@JRV: nice informative site there
Couple of password checkers:
http://www.microsoft.com/nz/protect/yourself/password/checker.mspx
http://www.paehl.de/php/password/
Dirk Paehl : http://www.paehl.de/home.htm