Anonymous is reviving one of its old enemies, and his name is Donald Trump. 

The hacktivist group declared "total war" on the GOP presidential frontrunner in a video posted on March 4, which has since gone viral with #OpTrump trending on Twitter Tuesday.

In the video, a masked announcer discussed a former Anonymous operation targeting Trump: "We, the loyalists and veterans of Anonymous, have decided to revive this operation on a far larger scale."

Addressing Trump, Anonymous called him out for flip-flopping and using the presidential election as a platform to exploit people:

Dear Donald Trump, we have been watching you for a long time and what we see is deeply disturbing. Your inconsistent and hateful campaign has not only shocked the United States of America, you have shocked the entire planet with your appalling actions and ideas. You say what your current audience wants to hear, but in reality you don't stand for anything except for your personal greed and power.

The group called for everyone with a computer to participate in the effort to dismantle Trump's campaign.

"We need you to shut down his websites, research and expose what he doesn't want the public to know. We need you to dismantle his campaign and sabotage his brand," Anonymous said. 

The group included a link to Ghostbin with instructions on which specific Trump websites to target. The Ghostbin also contained what Anonymous claims to be Trump's social security number, date of birth, New York phone number, and other personal information.

Most users tweeting #OpTrump seemed to respond favorably:

But exposing reasons why American voters shouldn't support Trump might not have quite the effect that Anonymous hopes. 

Comedian John Oliver and others have spoken up about Trump in the past, providing facts meant to counter his popularity, but have so far failed to slow the GOP frontrunner's momentum.