This article is about the computer program. For the piece of glassware used to transfer fluids, see Pasteur pipette
. For the slang for hired killer, see hitman
||This article does not cite any sources. (December 2009)
A dropper is a program (malware component) that has been designed to "install" some sort of malware (virus, backdoor, etc.) to a target system. The malware code can be contained within the dropper (single-stage) in such a way as to avoid detection by virus scanners or the dropper may download the malware to the target machine once activated (two stage).