Office printers around the world have begun involuntarily dribbling forth pages and pages of gobbledegook as a side effect of a computer virus.
Don't worry, it's definitely not down to ghosts - security firm Symantec has checked.
The trojan, named Milicenso, infects Windows PCs by email, dummy website or encouraging installs of a fake program.
The virus, while trying to distribute adware, creates a file that sits in the computer's print queue consisting of the virus's main directory and that's what gets printed out until the printer runs out of paper.
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"Based on what we have discovered so far, the garbled printouts appear to be a side effect of the infection vector rather an intentional goal of the author," explains Symantec in a blog post.
The company has antivirus signatures available to defeat the pesky Milicenso – and if your printer has begun printing mysterious symbols ad infinitum, don't forget to recycle all that wasted paper.