On 12/09/2010 09:36 PM, Mike Vasquez wrote: > You can dump the local cached hashes, take a domain admins,
My understanding is that after the target user has logged off, the hashes which remain are only sufficient to validate a correct password. I.e., they're like the classic /etc/passwd hashes but with decent salts. They could be used for dictionary attacks, but not with precomputed rainbow tables. > and use a > pass the hash attack, which has been around for a while, such as: > Hernan Ochoa / http://oss.coresecurity.com/projects/pshtoolkit.htm My understanding is that PTH is a technique allowing you to easily use a different kind of hash. The password-equivalent kind that would be copied from the credentials of a live logged-in session. In that sense, PTH on its own may not meet the formal definition of an 'attack', since you still need a way to capture the password-equivalent. > I don't see this being any more concerning. Whatever you do in the > above, is under the other account. Granted, I may be missing something, > so enlighten me. If you're a local admin, you can replace explorer.exe and access resources with the credentials of the logged-in user. If you're a local admin, you can install a keylogger and trivially capture anyone's freaking plaintext password (local console or RDP sessions). So don't type your Domain Admin password into an untrusted system. Duh! Note that any system to which an untrusted party has unsupervised physical access is untrusted. - Marsh _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/