Malthouse told reporters on Wednesday morning that Judd had done enough in his comeback game in the VFL last Saturday to come straight back into Carlton's team.
"He didn't slay them with possession rate, but what he did was get through the game and that was the most important (thing) for him," Malthouse said.
"He said to me before the last training (session) last week that he knew he had to get through the match and it wasn't a matter of [playing] 60 per cent (of the game) and then finishing, it was a matter of [playing] 60 per cent per quarter.
"So he was actually out there for the full four quarters and that was designed and we got him through that, and he may have done a tick more actually, but nonetheless it was so important that he did that.
"The only thing that will stop him now is how he pulls up.
"(Today) is our biggest training session. If he gets through that I don't see any reason not to pick him."
The Blues coach said it had yet to be decided whether Judd would don the substitute's green vest against the Hawks as he did in his only senior game this year, against the Western Bulldogs in round five.
Judd strained a hamstring within six minutes of coming onto the field against the Bulldogs, an injury that sidelined him until last weekend.
Carlton full-back Michael Jamison had to be treated for calf soreness during the Blues' five-point loss to Geelong last Friday night.
But Malthouse said the defender should be fit to take on the Hawks.
"He was sore last week but he got through the game, he played very well," Malthouse said of Jamison.