>if passwd is a lone asterisk, then you haven't been exploited. At the risk of sounding a bit pedantic you can't really assume that, it's possible that somebod

>if passwd is a lone asterisk, then you haven't been exploited. At the risk of sounding a bit pedantic you can't really assume that, it's possible that somebody used this vulnerability, installed some sort of backdoor and then disabled the account to hide their tracks.