http://arstechnica.com/security/2012/06/printer-bomb-pandimonium/
Printer bomb malware wastes reams of paper, sparks pandemonium
A Fortune 500 co.—It's "as if it was opening the .exe, printing garbage text."
A recently unleashed piece of malware is wreaking havoc in some enterprises by causing all their printers to print gibberish until they run out of paper, researchers from Symantec said.
"The impact is global and effecting approximately 80 print servers," an admin of one Fortune 500 company wrote in an online forum dedicated to the print bomb explosion. "The print job names were all 15 characters in length and unique. The print jobs were all garbage print, as if it was opening the .exe and printing the garbage text." Other participants reported the same phenomenon caused hundreds of their organizations' printers to run through reams of paper.
According to a blog post published Thursday by researchers from antivirus provider Symantec, the nuisance is being spread by Trojan.Milicenso. The worst hit regions are the US, India, Europe, and South America. Milicenso is a fairly sophisticated backdoor that serves as a for-hire delivery vehicle for other pieces of malware.
http://www.symantec.com/connect/blogs/trojanmilicenso-paper-salesman-s-dream-come-true
Over the past two weeks, an outbreak of Trojan.Milicenso has resulted in multiple reports of massive print jobs being sent to print servers, printing garbage characters until the printer runs out of paper.