NEW YORK — A court-appointed trustee unraveling Bernard Madoff's massive fraud signaled today that he might go after the disgraced financier's family to pay victim claims, which have grown to almost 9,000.

Legal action against the family "is a matter that's being looked into," trustee Irving Picard said during a telephone conference call with reporters.

Picard already has filed lawsuits in bankruptcy court in Manhattan to try to force hedge funds and other large investors to return $10.1 billion in fictitious profits paid by Madoff's firm, alleging they should have known about the fraud. As of Wednesday, there were 8,848 from customers claiming losses, he said.

"I have a duty to investigate and to go to court to recover from persons and entities who received more than their share," he said. "In actual fact, persons who are subject to these recovery efforts actually received money stolen from others."

Stephen Harbeck, head of Securities Investor Protection Corp. or SIPC, also vowed to get tough with anyone else in on the scheme, including Madoff family members.

"Wrongdoers should pay for their wrongdoing," Harbeck, who's working with Picard, said during the call.

In court filings, Picard has alleged that Madoff's inner circle — his wife, two sons, brother and key employees — wantonly used investor money to fuel a lavish lifestyle. Madoff has claimed the others were in the dark, and their lawyers also have denied that they were complicit.