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HP 4050 Display Hacked

Posted on 2006-07-19
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Last Modified: 2012-05-05
I have 2 HP 4050 printers networked on our domain that both seem to have been hacked into.  

All of a sudden one says "So Sleepy" in the display (where it usually displays "ready") and the other has "Deposit .025".  

I logged into the jetdirect admin page using the assigned IP and can find nothing there that allows me to change the display settings, so I am not sure how these changes came about.  

I have since placed security passwords on the jetdirect cards to prevent future settings, but I cannot figure how this happened and also how to change it so that it will not continue to display these statements.
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Question by:pshalm
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2 Comments
 
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by:wyliecoyoteuk
wyliecoyoteuk earned 200 total points
ID: 17141197
If you do a system reset to manufacturer's defaults, it should reset the messages.

resets menu>restore factory settings.
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WillHudson earned 300 total points
ID: 17145701
Hi pshalm,

Most likely, someone with knowledge of C# was messaing around.
Here's a guy with step-by-step instructions on how to do it - so it wouldn't suprise me at all if the person responsable came across the same (or similiar) website:

http://www.odetocode.com/Humor/68.aspx

I agree with Wylie though, a factor reset should set the display back to how it should be
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