Paralysis and “paranoia’’ brought on by US Attorney Preet Bharara’s ongoing corruption probe have come to define Gov. Andrew Cuomo and his administration with just seven days to go in the legislative session, a worried Cuomo ally and others have told The Post.

“Something is wrong. The place is paralyzed and the governor is not right. He seems frantic at times. He’s not acting the way he normally did,’’ said the ally, a prominent Cuomo political backer and longtime associate who has contact with the governor’s administration on a near-daily basis.

“Cuomo is paranoid, his staff is paranoid and nobody can make a decision on key issues, like the [about-to-expire housing construction subsidy] 421-a program and other big outstanding issues.

“Hardly anything is getting done, Cuomo has gone into seclusion, you can’t get to him, you don’t know what he’s thinking,’’ the ally, who described himself as a “friend’’ and “admirer’’ of Cuomo, continued.

The ally, well-known to most Albany insiders in both the Democratic and Republican parties, said Bharara’s investigation of Albany corruption that led to the indictment of two leaders of the Legislature earlier this year “badly shook’’ Cuomo because, he said, “nobody on the inside doubts that Bharara’s ultimate target is the governor himself.’’

The insider’s assessment of Cuomo’s peculiar behavior was echoed by others close to the governor’s office. One described Cuomo as “kind of lost, kind of out of it.’’

They also noted that Cuomo has been confrontational recently with important New York Democrats including Mayor Bill de Blasio, state Attorney General Eric Schneiderman and state Comptroller Tom DiNapoli.

Meanwhile, the insider said several recent Cuomo administration departures were the result of the governor’s strange behavior, noting, “It’s reached a point where nobody can cross a ‘t’ or dot an ‘i’ without the governor’s OK, and you can’t run a government like that.’’

He predicted that former investment banker William Mulrow, Cuomo’s recently hired secretary, or chief of staff, would soon depart the administration unless the governor changed his ways.

“He’s a well-liked, wonderful guy, he’s got all the money in the world, he doesn’t need the job, so the real question is, ‘How much longer is he going to put up with this?’ ”

All the sources agreed that Bharara’s investigation was a major cause of Cuomo’s odd behavior, but some also say that the impact of the death of the governor’s father, former Gov. Mario Cuomo, earlier in the year, the breast cancer that recently led his long-time girlfriend, Sandra Lee, to undergo a double mastectomy, and his declining opinion poll numbers were also to blame.

“He’s had a quadruple whammy this year led by Bharara and it’s taken a serious toll on him,’’ said one source.

Where’s Joe?

It’s a question many Albany Democrats are asking regarding longtime Cuomo aide Joseph Percoco, who appears to have dropped from sight.

“There are a lot of questions about what’s going on with Joe and very few answers,’’ said a Democratic activist and Democratic Party insider.

“You can occasionally get him on the phone, but he’s not around the way he once was and people are wondering why not.”