Trojan
Wiktionary, Creative Commons Attribution/Share-Alike License
noun.
Malware
that appears to perform or actually performs a desired task for a user while performing a harmful task without the user's knowledge or consent.
adjective.
Describing a
satellite
(
moon
or
minor planet
) that shares an
orbit
with another
cross-reference
URL injection
backdoor
dialer
exploit
key logger