Symptoms
Form has a range of symptoms, most of which will not be evident in all infections.
- Form's most famous side effect is a clicking noise produced by typing on the keyboard on the 18th of every month. However, this payload very rarely appears on modern computers, as it will not execute if a keyboard driver is installed.
- Form consumes 2KB of memory, and the DOS MEM command will report that this memory is unavailable. This appears on all infections.
- On floppy disks, 1 KB (2 bad sectors) will be reported. This appears in all infections.
- The Form data sector contains the text "The FORM-Virus sends greetings to everyone who's reading this text. FORM doesn't destroy data! Don't panic! Fuckings go to Corinne." Additionally, some versions of Form have had this text removed.
- Form makes the assumption that the active partition is a DOS FAT partition. If this is not true, such as under Windows NT, Form will overwrite in a way that may result in irreversible data loss.
Read more about this topic: Form (computer Virus)
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