Top Definition
A virus that once it is run, Jeefo goes memory resident, infecting files every now and again. Its infection strategy consists in adding its code to the original file, increasing its size by 36,352 bytes. In addition, Jeefo encrypts the original file.

Once an infected file is run, it is decrypted and disinfected.
Wow , jeefo infected my exe`s !
by jtefan July 31, 2006

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